H3C S10500X-G switch series is a set of core switching products designed for the cloud computing data centers. It uses the advanced multi-stage multi-plane CLOS architecture to deliver the industry's highest switching performance, port density, availability, and most abundant cloud computing features.

The S10500X-G switch series includes the S10506X-G, S10506X-G-PoE, S10508X-G, and S10512X-G models.

Chassis views

The switch has an MPU section, service module section, switch fabric module section, power supply section, and fan tray section.

NOTE:

The chassis view figures are for illustration only.

Figure1-1 S10506X-G front and rear panels

(1) MPU section	(2) Service module section
(3) Switch fabric module section	(4) Power supply section
(5) Fan tray section	(6) Power switches

Figure1-2 S10506X-G-PoE switch front and rear panels

(1) MPU section	(2) Service module section
(3) PoE power supply section	(4) Switch fabric module section
(5) Power supply section	(6) Fan tray section
(7) Power switches

Figure1-3 S10508X-G switch front and rear panels

(1) MPU section	(2) Service module section
(3) Switch fabric module section	(4) Power supply section
(5) Power switches	(6) Fan tray section

Figure1-4 S10512X-G front and rear panels

(1) MPU section	(2) Service module section
(3) Switch fabric module section	(4) Power supply section
(5) Fan tray section	(6) Power switches

Table1-1 Description for the switch sections

Section	Installation description
MPU section	No MPUs are provided with the switch. Purchase MPUs yourself. The switch has two MPU slots. You can install one MPU, or two MPUs for redundancy. To install only one MPU for the switch, you can install it in either of the MPU slots.
Service module section	No service modules are provided with the switch. · S10506X-G/S10506X-G-PoE—6 service module slots. Select the service module model and quantity as are needed. · S10508X-G—8 service module slots. Select the service module model and quantity as are needed. · S10512X-G—12 service module slots. Select the service module model and quantity as needed. You can install a service module in any of the empty service module slots.
Power supply section	No power supplies are provided with the switch. · S10506X-G—4 power supply slots, on the right side of the rear panel. · S10506X-G-PoE—4 power supply slots and 8 PoE power supply slots on the left and rights sides of the rear panel. · S10508X-G—6 power supply slots, on the right side of the rear panel. · S10512X-G—8 power supply slots, on the right side of the rear panel. The switch supports N+N (dual power input sources) and N+1 (single power input source) power redundancy. Determine the number of power supplies based on power supply mode and the system power consumption. You can install a power supply in any of the empty power supply slots.
Switch fabric module section	No switch fabric modules are provided with the switch. · S10506X-G/S10506X-G-PoE—Install 1 to 4 switch fabric modules. · S10508X-G—Install 1 to 6 switch fabric modules. · S10512X-G—Install 1 to 6 switch fabric modules. Install filler panels in the empty switch fabric module slots. Read the priority instructions about switch fabric module slots on the rear panel of the chassis. Insert switch fabric modules according to the instructions. Before you replace a switch fabric module, remove the fan tray that covers it.
Fan tray section	No fan trays are provided with the switch. · S10506X-G/S10506X-G-PoE—Two fan tray slots FAN 1 and FAN 2. · S10508X-G—Three fan tray slots FAN 1, FAN 2, and FAN 3. · S10512X-G—Three fan tray slots FAN 1, FAN 2, and FAN 3. You must install a fan tray in each slot.
Power switches	To power on the switch, turn on both power switches. To power off the switch, turn off both power switches.

For the modules, fan trays, and power supplies available for the switch, see "FRUs and compatibility matrixes."

Table1-2 describes the slot arrangements for FRUs.

Table1-2 FRU slot arrangement

Model	MPU	Service module	Switch fabric module	Power supply	Fan tray
S10506X-G	Slots 0 and 1	Slots 2 to 7	Slots 8 to 11 Slots 8 and 9 are covered by FAN 1. Slots 10 and 11 are covered by FAN 2.	PWR 1 to PWR 4	FAN 1 and FAN 2
S10506X-G-PoE	Slots 0 and 1	Slots 2 to 7	Slots 8 to 11 Slots 8 and 9 are covered by FAN 1. Slots 10 and 11 are covered by FAN 2.	· PWR 1 to PWR 4 · PWR-PoE 1 to PWR-PoE 8	FAN 1 and FAN 2
S10508X-G	Slots 0 and 1	Slots 2 to 9	Slots 10 to 15 Slots 10 and 11 are covered by FAN 1. Slots 12 and 13 are covered by FAN 2. Slots 14 and 15 are covered by FAN 3.	PWR 1 to PWR 6	FAN 1 to FAN 3
S10512X-G	Slots 0 and 1	Slots 2 to 13	Slots 14 to 19 Slots 14 and 15 are covered by FAN 1. Slots 16 and 17 are covered by FAN 2. Slots 18 and 19 are covered by FAN 3	PWR 1 to PWR 8	FAN 1 to FAN 3

Weights and dimensions

The switch uses modular design. Its weight includes the chassis (mounting brackets and filler panels included) and its FRUs.

Table1-3 Chassis weights and dimensions

Model	Net weight	Max weight (fully configured)	Height	Width	Depth
S10506X-G	30.5 kg (67.24 lb)	< 85 kg (187.39 lb)	442 mm (17.40 in)/10 RU	440 mm (17.32 in)	520 mm (20.47 in)
S10506X-G-PoE	33.0 kg (72.75 lb)	< 95 kg (209.44 lb)	442 mm (17.40 in)/10 RU	440 mm (17.32 in)	520 mm (20.47 in)
S10508X-G	46.5 kg (102.51 lb)	< 130 kg (286.60 lb)	531 mm (20.91 in)/12 RU	440 mm (17.32 in)	640 mm (25.20 in)
S10512X-G	58.5 kg (128.97 lb)	< 180 kg (396.83 lb)	796 mm (31.34 in)/18 RU	440 mm (17.32 in)	640 mm (25.20 in)

NOTE:

· Rack height is measured in RUs. One RU is 44.45 mm (1.75 in).

· Table1-3 lists dimensions for the switch, excluding the mounting brackets, cable management brackets, modules, and power supplies.

Table1-4 Module weights and dimensions

Model	Weight	Height	Width	Depth
LSEM1SUPA0	1.90 kg (4.19 lb)	45 mm (1.77 in)	208 mm (8.19 in)	269 mm (10.59 in)
LSEM3SUPA0	1.95 kg (4.30 lb)	45 mm (1.77 in)	208 mm (8.19 in)	269 mm (10.59 in)
LSEM1SUPB0	3.00 kg (6.62 lb)	45 mm (1.77 in)	423 mm (16.65 in)	269 mm (10.59 in)
LSEM3SUPB0	2.95 kg (6.50 lb)	45 mm (1.77 in)	208 mm (8.19 in)	269 mm (10.59 in)
LSEM1SF06D0	3.35 kg (7.39 lb)	46 mm (1.81 in)	368 mm (14.49 in)	198 mm (7.80 in)
LSEM1SF08C0	4.30 kg (9.48 lb)	46 mm (1.81 in)	467 mm (18.39 in)	273 mm (10.75 in)
LSEM1SF12B0	6.50 kg (14.33 lb)	46 mm (1.81 in)	698 mm (27.48 in)	273 mm (10.75 in)
LSEM1TGS24SD0	3.35 kg (7.39 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1TGS48SD0	3.50 kg (7.72 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1GT48TSSD0	3.25 kg (7.16 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1GV48TSSD0	3.35 kg (7.39 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1GT24GP16TSSD0	3.35 kg (7.39 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1TGS16GP32SD0	3.50 kg (7.72 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1GT48TS24QSSD0	3.90 kg (8.60 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1TGS48QSSF0	4.50 kg (9.92 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM3TGS48QSSF0	4.30 kg (9.48 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1QGS16SF0	3.95 kg (8.71 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM3QGS16SF0	4.05 kg (8.93 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1YGS48CQSF0	4.20 kg (9.26 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM3YGS48CQSF0	4.30 kg (9.48 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1CGQ16SF0	3.95 kg (8.71 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM3CGQ16SF0	3.95 kg (8.71 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1CGQ36SF0	4.45 kg (9.81 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)
LSEM1CDQ2SF0	3.30 kg (7.28 lb)	51 mm (2.01 in)	423 mm (16.65 in)	270 mm (10.63 in)

NOTE:

Module dimensions are expressed in Height (H) × Width (W) × Depth (D) format:

· Height—Height of the front panel of the module.

· Width—Width of the front panel of the module.

· Depth—Depth from the front panel of the module to the connector (Including the connector, but excluding the ejector levers and captive screws).

Table1-5 Power supply weights and dimensions

Model	Weight	Height	Width	Depth
PSR1600B-12A-B	1.10 kg (2.43 lb)	40 mm (1.57 in)	74 mm (2.91 in)	225 mm (8.86 in)
PSR1600-54A-B	0.95 kg (2.10 lb)	40 mm (1.57 in)	74 mm (2.91 in)	185 mm (7.28 in)
PSR2000-12D-B	1.10 kg (2.43 lb)	40 mm (1.57 in)	74 mm (2.91 in)	225 mm (8.86 in)

Table1-6 Fan tray weights and dimensions

Model	Weight	Height	Width	Depth
S10506X-G/S10506X-G-PoE fan tray —FAN-80B-4-A	2.75 kg (6.06 lb)	93 mm (3.66 in)	432 mm (17.01 in)	143 mm (5.63 in)
S10508X-G fan tray -FAN-80B-5-A	3.85 kg (8.49 lb)	93 mm (3.66 in)	527 mm (20.75 in)	162 mm (6.38 in)
S10512X-G fan tray-FAN-80B-8-A	5.25 kg (11.57 lb)	93 mm (3.66 in)	788 mm (31.02 in)	162 mm (6.38 in)

Module power consumption and system power consumption

Module power consumption

The switch supports varieties of modules that are different in power consumptions. For a same module, the power consumption varies by its state. Table1-7 shows the power consumption for different module models.

· The static power consumption of a module refers to the power consumed by the module when the module is running but all its ports are down and its fiber ports are not installed with transceiver modules.

· The dynamic power consumption of a module refers to the power consumed by the module when all the ports on the module are link up and send broadcasts.

Table1-7 Module power consumption

Model	Static power consumption (minimum)	Dynamic power consumption (maximum)
LSEM1SUPA0	22 W	30 W
LSEM3SUPA0	22 W	33 W
LSEM1SUPB0	27 W	170 W
LSEM3SUPB0	22 W	33 W
LSEM1SF06D0	55 W	95 W
LSEM1SF08C0	61 W	112 W
LSEM1SF12B0	62 W	126 W
LSEM1TGS24SD0	24 W	56 W
LSEM1TGS48SD0	40 W	93 W
LSEM1GT48TSSD0	28 W	55 W
LSEM1GV48TSSD0	28 W	55 W
LSEM1GT24GP16TSSD0	28 W	62 W
LSEM1TGS16GP32SD0	39 W	80 W
LSEM1GT48TS24QSSD0	52 W	115 W
LSEM1TGS48QSSF0	71 W	175 W
LSEM3TGS48QSSF0	71 W	178 W
LSEM1QGS16SF0	71 W	172 W
LSEM3QGS16SF0	71 W	175 W
LSEM1YGS48CQSF0	75 W	218 W
LSEM3YGS48CQSF0	75 W	221 W
LSEM1CGQ16SF0	70 W	197 W
LSEM3CGQ16SF0	70 W	200 W
LSEM1CGQ36SF0	121 W	348 W
LSEM1CDQ2SF0	67 W	133 W

Fan tray power consumption

The switch uses fan trays that can automatically adjust the fan speed based on the switch temperature. The power consumed by a fan tray depends on the fan speed.

Table1-8 Fan tray power consumption

Switch model	Fan tray model	Minimum fan tray power consumption	Maximum fan tray power consumption
S10506X-G/S10506X-G-PoE	FAN-80B-4-A	30 W	230 W
S10508X-G	FAN-80B-5-A	34 W	276 W
S10512X-G	FAN-80B-8-A	53 W	425 W

System power consumption

The system power consumption of the switch depends on the type and number of modules and the fan tray power consumption.

· The minimum system power consumption is the total static power consumption of all modules plus the minimum fan tray power consumption.

· The maximum system power consumption is the total dynamic power consumption of all modules plus the maximum fan tray power consumption.

For example, for an S10506X-G switch that has two LSEM1SUPA0 MPUs, two LSEM1GT48TSSD0 service modules, two LSEM1SF06D0 switch fabric modules, and two FAN-80B-4-A fan trays, the minimum system power consumption of the switch is 2 × 22 + 2 × 28 + 2 × 55 + 2 × 30 = 270 W. The maximum system power consumption of the switch is 2 × 30 + 2 × 55 + 2 × 95 + 2 × 230 = 820 W.

The maximum power consumption is the maximum power input to the device when the device is fully configured with modules with the maximum power consumption.

Maximum module and fan tray power consumption is power consumed by all modules and fan trays when the device is fully configured with modules and fan trays with the maximum power consumption.

Heat dissipation

Heat dissipation is measured in BTU/h, and 1 W equals 3.4121 BTU/h.

The heat dissipation of a switch depends on its power consumption. To calculate heat dissipation of the switch, assume 90% power consumption is converted to heat, and the conversion efficiency of the power supplies is 90%. Heat dissipation/hour of the switch is 0.9 × (total power consumption of the modules plus power consumption of the fan tray)/0.9 × 3.4121.

For the power consumption of the modules and fan trays of the H3C S10500X-G switches, see "Module power consumption and system power consumption."

Table1-9 Heat dissipation

Switch module	Heat dissipation (BTU/H)
S10506X-G/S10506X-G-PoE	10216
S10508X-G	14843
S10512X-G	121405

Environmental specifications

Table1-10 Environmental specifications

Description	Operating	Storage
Temperature	0°C to 45°C (32°F to 113°F)	–40°C to +70°C (–40°F to +158°F)
Relative humidity (noncondensing)	5% to 95%	5% to 95%

Description

Operating

Storage

Temperature

0°C to 45°C (32°F to 113°F)

–40°C to +70°C (–40°F to +158°F)

Relative humidity

(noncondensing)

5% to 95%

Noise

The switch uses fan trays that can automatically adjust the fan speed based on the switch temperature The sound pressure levels vary by fan speed. For more information, see Table1-11.

Table1-11 Sound pressure levels

Switch model	Fan tray model	Sound pressure level in the acceptable temperature range	Sound pressure level when the fan tray operates at full speed
S10506X-G/S10506X-G-PoE (fully configured with fan trays)	FAN-80B-4-A	57.7 dBA	79.1 dBA
S10508X-G (fully configured with fan trays)	FAN-80B-5-A	58.6 dBA	81.9 dBA
S10512X-G (fully configured with fan trays)	FAN-80B-8-A	62.1 dBA	82.6 dBA

NOTE:

The sound pressure levels are measured based on the method specified in ISO 7779 at bystander positions.

Chassis ordering information

To purchase an S10500X-G chassis, contact the sales agent or H3C sales personnel.

Table1-12 S10500X-G chassis ordering information

Product name	Description
S10506X-G	H3C S10506X-G Ethernet Switch Chassis
S10506X-G-PoE	H3C S10506X-G-PoE Ethernet Switch Chassis
S10508X-G	H3C S10508X-G Ethernet Switch Chassis
S10512X-G	H3C S10512X-G Ethernet Switch Chassis

2 FRUs and compatibility matrixes

For the transceiver modules and cables available for the modules, see H3C S10500X-G Switch Series Cards and Transceiver Modules Compatibility Matrixes.

MPUs

The switch uses an MPU for control and management. You can install one MPU, or two MPUs for redundancy on the switch. Do not install MPUs of different models on the same switch.

Table2-1 MPU ordering guide

Switch model	Available MPUs
S10506X-G/S10506X-G-PoE/S10508X-G	LSEM1SUPA0
S10506X-G/S10506X-G-PoE/S10508X-G	LSEM3SUPA0
S10512X-G	LSEM1SUPB0
S10512X-G	LSEM3SUPB0

Table2-2 MPU specifications

Item	LSEM1SUPA0	LSEM1SUPB0	LSEM3SUPA0	LSEM3SUPB0
Processor	Quad core, 1.8 GHz		Quad core, 2.2 GHz
SDRAM	8 GB		8 GB
Flash	8 GB		2 GB
NVRAM	1 MB		1 MB
Connector type	· RJ-45 · LC · USB (Type A)		· RJ-45 · LC · USB (Type A)
Ports	· 1 × console port · 1 × USB port · 2 × management ports, including one RJ-45 port and one SFP port		· 1 × console port · 1 × USB port · 2 × management ports, including one RJ-45 port and one SFP port
Transmission rate	· Console port: 9600 bps (default) to 115200 bps · RJ-45 management port: 10/100/1000 Mbps, half/full duplex · SFP management port: 1000 Mbps		· Console port: 9600 bps (default) to 115200 bps · RJ-45 management port: 10/100/1000 Mbps, half/full duplex · SFP management port: 1000 Mbps

IMPORTANT:

· To verify compatibility of the module with the software release you are using, see the release notes.

· The USB port outputs power as prescribed by USB 2.0. You can only install a USB 2.0-compliant device in the USB port.

· Set the same speed and duplex mode for a management Ethernet port and its peer port.

· If the two management ports are connected to one remote switch, you must assign their peer ports to different VLANs. Login or file transfer will fail if the peer ports are in the same VLAN.

· When using the BootWare menu to upgrade software or BootWare, make sure you use 10/100/1000BASE-T port M0/0/0 for image transferring.

Service modules

Table2-3 Service module specifications

Service module	Port quantity	Port type	Available transceiver modules and cables
LSEM1TGS24SD0	24	24 × 10GBASE-R-SFP+ fiber ports	· 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · GE SFP transceiver modules
LSEM1TGS48SD0	48	48 × 10GBASE-R-SFP+ fiber ports	· 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · GE SFP transceiver modules
LSEM1GT48TSSD0	52	· 4 × 10GBASE-R-SFP+ fiber ports · 48 × 10M/100M/1000M autosensing RJ-45 copper ports	· 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · FE/GE SFP transceiver modules · Category 5 twisted pair cables
LSEM1GV48TSSD0	52	· 4 × 10GBASE-R-SFP+ fiber ports · 48 × 10/100/1000 BASE-T-PoE+ copper ports	· 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · FE/GE SFP transceiver modules · Category 5 twisted pair cables
LSEM1GT24GP16TSSD0	52	· 12 × 10GBASE-R-SFP+ ports · 16 × 1000BASE-X-SFP ports · 24 × 10/100/1000BASE-T ports	· 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · FE/GE SFP transceiver modules · Category 5 twisted pair cables
LSEM1TGS16GP32SD0	48	· 16 × 10GBASE-R-SFP+ fiber ports · 32 × 1000BASE-X-SFP ports	· 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · FE/GE SFP transceiver modules
LSEM1GT48TS24QSSD0	74	· 2 × 40GBASE-R-QSFP+ ports · 24 × 10GBASE-R-SFP+ ports · 48 × 10/100/1000BASE-T ports	· QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP+ to SFP+ DAC cables · 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · GE SFP transceiver modules · Category 5 twisted pair cables
LSEM1TGS48QSSF0	52	· 48 × 10GBASE-R-SFP+ fiber ports · 4 × 40GBASE-R-QSFP+ ports	· QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP+ to SFP+ DAC cables · 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · GE SFP transceiver modules
LSEM3TGS48QSSF0	52	· 48 × 10GBASE-R-SFP+ fiber ports · 4 × 40GBASE-R-QSFP+ ports	· QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP+ to SFP+ DAC cables · 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · GE SFP transceiver modules
LSEM1QGS16SF0	16	16 × 40GBASE-R-QSFP+ ports	· QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP+ to SFP+ DAC cables
LSEM3QGS16SF0	16	16 × 40GBASE-R-QSFP+ ports	· QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP+ to SFP+ DAC cables
LSEM1YGS48CQSF0	52	· 4 × 100G QSFP28 fiber ports · 48 × 25G SFP28 fiber ports	· QSFP28 transceiver modules · QSFP28 DAC cables · QSFP28 AOC cables · QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP28 to SFP28 DAC cables · QSFP+ to SFP+ DAC cables · SFP28 transceiver modules · SFP28 DAC cables · SFP28 AOC cables · 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · GE SFP transceiver modules
LSEM3YGS48CQSF0	52	· 4 × 100G QSFP28 fiber ports · 48 × 25G SFP28 fiber ports	· QSFP28 transceiver modules · QSFP28 DAC cables · QSFP28 AOC cables · QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP28 to SFP28 DAC cables · QSFP+ to SFP+ DAC cables · SFP28 transceiver modules · SFP28 DAC cables · SFP28 AOC cables · 10-GE SFP+ transceiver modules · 10-GE SFP+ DAC cables · GE SFP transceiver modules
LSEM1CGQ16SF0	16	16 × 100GBASE-R-QSFP28 fiber ports	· QSFP28 transceiver modules · QSFP28 DAC cables · QSFP28 AOC cables · QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP28 to SFP28 DAC cables · QSFP+ to SFP+ DAC cables
LSEM3CGQ16SF0	16	16 × 100GBASE-R-QSFP28 fiber ports	· QSFP28 transceiver modules · QSFP28 DAC cables · QSFP28 AOC cables · QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP28 to SFP28 DAC cables · QSFP+ to SFP+ DAC cables
LSEM1CGQ36SF0	36	36 × 100GBASE-R-QSFP28 ports	· QSFP28 transceiver modules · QSFP28 DAC cables · QSFP28 AOC cables · QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables · QSFP28 to SFP28 DAC cables · QSFP+ to SFP+ DAC cables
LSEM1CDQ2SF0	2	2 × 400GBASE-R-QSFP-DD fiber ports	· QSFP-DD transceiver modules · QSFP-DD DAC cables · QSFP28 transceiver modules · QSFP28 DAC cables · QSFP28 AOC cables · QSFP+ transceiver modules · QSFP+ DAC cables · QSFP+ AOC cables

Switch fabric modules

Table2-4 Switch fabric module ordering guide

Switch model	Available switch fabric modules	Switch fabric module quantity per switch
S10506X-G/S10506X-G-PoE	LSEM1SF06D0	1 to 4
S10508X-G	LSEM1SF08C0	1 to 6
S10512X-G	LSEM1SF12B0	1 to 6

Slide rails

No slide rails are shipped with the switch. Select slide rails for the switch as required. Table2-5 describes the slide rails available for the switch.

Table2-5 Slide rails available for the switch

Item	LSEM1BSR	LSXM1BSR	LSTM2KSGD0
Part No.	0231AJAP	0231A4EK	0231A0PL
Adjustment range	380 mm to 630 mm (14.96 in to 24.80 in)	630 mm to 900 mm (24.80 in to 35.43 in)	500 mm to 800 mm (19.69 to 31.50 in)
Load bearing capacity	100 kg (220.46 lb)	400 kg (881.83 lb)	200 kg (440.92 lb)
Occupied space	N/A	1 U	2 U
Applicable rack depth	0.6 m (1.97 ft), 0.8 m (2.62 ft)	1.0 m (3.28 ft), 1.2 m (3.94 ft)	0.8 m (2.62 ft), 1.0 m (3.28 ft)
Applicable switch model	S10506X-G/S10506X-G-PoE	All S10500X-G switch models	All S10500X-G switch models

NOTE:

The applicable rack depths in Table2-5 are for your reference only. Before you install slide rails, make sure the rack depth is in the adjustment range of the slide rails.

Power supplies

The switch supports N+N (dual power input sources) or N+1 (single power input source) power supply redundancy. Determine the number of power supplies based on the power supply mode and system power consumption. Make sure the maximum total output power of the installed power supplies is greater than the system power consumption. Reserve a 20% power surplus as a best practice.

Table2-6 describes the power supplies available for the switch.

Table2-6 Power supplies available for the switch

Switch model	Available power supplies	Power supply quantity per switch
S10506X-G	· PSR1600B-12A-B · PSR2000-12D-B	2 to 4
S10506X-G-PoE	· PSR1600B-12A-B · PSR2000-12D-B · PoE: PSR1600-54A-B	· 2 to 4 · PoE: 2 to 8
S10508X-G	· PSR1600B-12A-B · PSR2000-12D-B	2 to 6
S10512X-G	· PSR1600B-12A-B · PSR2000-12D-B	2 to 8

Table2-7 PSR1600B-12A-B power supply specifications

Item		Specifications
Rated input voltage		· 100 to 240 VAC @ 50 or 60 Hz, 10 A · 240 VDC @ 8 A
Rated output voltage		12 V
Maximum output current		131 A (12 V)
Maximum output power		· 786 W @ 110 VAC · 1572 W @ 220 VAC · 1572 W @ 240 VDC
Dimensions (H × W × D)		40 × 74 × 225 mm (1.57 × 2.91 × 8.86 in)
Ambient temperature	Operating temperature	–10°C to +55°C (14°F to 131°F)
Ambient temperature	Storage temperature	–40°C to +70°C (–40°F to +158°F)
Compatible devices		All device models

Table2-8 PSR1600-54A-B power supply specifications

Item		Specifications
Rated input voltage		· 100 to 130 VAC @ 50 or 60 Hz, 12 A · 200 to 240 VAC @ 50 or 60 Hz, 10 A · 240 VDC @ 8 A
Rated output voltage		56 V
Maximum output current		29 A
Maximum output power		· 950 W @ 110 VAC · 1600 W @ 220 VAC · 1600 W @ 240 VDC
Dimensions (H × W × D)		40 × 74 × 185 mm (1.57 × 2.91 × 7.28 in)
Ambient temperature	Operating temperature	–10°C to +55°C (14°F to 131°F)
Ambient temperature	Storage temperature	–40°C to +70°C (–40°F to +158°F)
Compatible devices		S10506X-G-PoE

Table2-9 PSR2000-12D-B power supply specifications

Item		Specifications
Rated input voltage		–48 to –60 VDC @ 60 A
Rated output voltage		12 V
Maximum output current		167 A
Maximum output power		2000 W
Dimensions (H × W × D)		40 × 74 × 225 mm (1.57 × 2.91 × 8.86 in)
Ambient temperature	Operating temperature	–10°C to +55°C (14°F to 131°F)
Ambient temperature	Storage temperature	–40°C to +70°C (–40°F to +158°F)
Compatible devices		All device models

NOTE:

The power supply shuts down automatically when its temperature exceeds the acceptable range. When the temperature returns to the acceptable range, the power supply automatically restarts.

Fan trays

Table2-10 Fan tray specifications

Model	Available fan trays	Number of fans	Fan diameter	Maximum air flow rate
S10506X-G/S10506X-G-PoE	FAN-80B-4-A	4	80 mm (3.15 in)	420 CFM
S10508X-G	FAN-80B-5-A	5	80 mm (3.15 in)	525 CFM
S10512X-G	FAN-80B-8-A	8	80 mm (3.15 in)	840 CFM

DC power cords

A DC power cord connects a DC power supply to an external DC power source.

Table2-11 DC power cords available for the power supplies

DC power supply	DC power cord length
PSR2000-12D-B	3 m (9.84 ft)
PSR2000-12D-B	15 m (49.21 ft)

AC power cords

An AC power cords is used for connecting an AC power supply on the switch to the external AC power supply system. Select an AC power cord with a current-carrying capacity that meets the power supply requirement.

For a PSR1600B-12A-B power supply, use an IEC 60320 standard-compliant power cord that has a C13 connector (connected to the power supply). For a PSR1600-54A-B power supply, use an IEC 60320 standard-compliant power cord that has a C15 connector (connected to the power supply).

The type of the connector (connected to the power source) varies by country or region. Select a compliant connector type as needed. For the connector types of different countries or regions and the power cord codes, see H3C Power Cords & Cables User Guide.

3 LEDs

Table3-1 lists the LEDs available for the switch.

Table3-1 LEDs at a glance

LEDs
MPU LEDs: · Management Ethernet port LEDs · Fan tray status LEDs · Power supply status LEDs · Service module status LEDs · MPU status LEDs · MPU active/standby status LED · Switch fabric module status LEDs



Service module LEDs: · Service module status LEDs · RJ-45 port LEDs · SFP port LEDs · SFP+ port LEDs · SFP28 port LEDs · QSFP+ port LEDs · QSFP28 port LEDs · QSFP-DD port LEDs


Switch fabric module status LEDs
Fan tray LEDs: · Fan tray status LEDs · Switch fabric module status LEDs on a fan tray
Power supply LEDs

MPU LEDs

Figure3-1 LSEM1SUPA0 MPU LEDs

(1) 10/100/1000BASE-T management Ethernet port LED	(2) SFP management Ethernet port LED
(3) Switch fabric module status LED (SFC)	(4) Service module status LED (LC)
(5) Fan tray status LED (FAN)	(6) Power supply status LED (PWR)
(7) MPU active/standby status LED (ACTIVE)	(8) MPU status LED (RUN/ALM)

Figure3-2 LSEM1SUPB0 MPU LEDs

(1) 10/100/1000BASE-T management Ethernet port LED	(2) SFP management Ethernet port LED
(3) Switch fabric module status LED (SFC)	(4) Service module status LED (LC)
(5) Fan tray status LED (FAN)	(6) Power supply status LED (PWR)
(7) MPU active/standby status LED (ACTIVE)	(8) MPU status LED (RUN/ALM)

Management Ethernet port LEDs

10/100/1000BASE-T management Ethernet port LEDs

The MPU provides a LED for the 10/100/1000BASE-T management Ethernet port to indicate the link status and data forwarding status of the port.

Table3-2 10/100/1000BASE-T management Ethernet port LED description

Status	Description
Flashing	The management Ethernet port is receiving or sending data.
On	A link is present.
Off	No link is present.

NOTE:

The data rate of a 10/100/1000BASE-T management Ethernet port is 1 Gbps when its LED is green and 10/100 Mbps when its LED is yellow.

SFP management Ethernet port LEDs

The MPU provides a LED for the SFP management Ethernet port to indicate the link status and data forwarding status of the port.

Table3-3 SFP management Ethernet port LED description

Status	Description
Flashing	The SFP port is receiving or sending data.
On	A link is present.
Off	No link is present.

NOTE:

When a link is present on an SFP management Ethernet port, the LED is green and the port is operating at 1 Gbps.

Fan tray status LEDs

The MPU provides a fan tray status LED to indicate the status of the fan trays.

Table3-4 Fan tray status LED description

Status	Description
Steady green	All fan trays are operating correctly.
Steady red	A fan tray is faulty or only one fan tray or no fan tray is operating correctly.
Off	The switch is not powered on.

Power supply status LEDs

The MPU provides a power supply status LED to indicate the status of the power supplies.

Table3-5 Power supply status LED description

Status	Description
Steady green	All power supplies are operating correctly.
Steady red	A minimum of one power supply is faulty.
Off	The switch is not powered on.

NOTE:

The power supply status LED is steady green only when all the power supplies are operating correctly. When a power supply is faulty, the power supply status LED is steady red.

Service module status LEDs

The MPU provides a service module status LED (LC) to indicate the status of the service modules.

Table3-6 Service module status LED description

Status	Description
Flashing green (once per two seconds)	All service modules are operating correctly.
Steady red	Possible reasons are as follows: · A minimum of one service module is starting up or loading software. · A high severity alarm has occurred on a minimum of one service module or a minimum of one service module is faulty. · The temperature of a service module has exceeded the upper warning threshold or fell below the lower warning threshold.
Off	No service module is present.

MPU status LEDs

The MPU provides an MPU status LED (RUN/ALM) to indicate its operating status.

Table3-7 MPU status LED description

Status	Description
Flashing green (once per two seconds)	The MPU is operating correctly.
Flashing green (four times per second)	The MPU is loading software.
Steady green	The MPU is starting up.
Steady red	A high severity alarm has occurred on the MPU or the MPU is faulty.
Flashing red (once per four seconds)	The MPU temperature has exceeded the upper warning threshold or fell below the lower warning threshold.
Off	The MPU is not in position or is faulty.

MPU active/standby status LED

The MPU has one ACTIVE LED to indicate the active or standby status of the MPU.

Table3-8 MPU ACTIVE LED description

LED status	Description
On	The MPU is active.
Off	· The MPU is in standby status. · The MPU is faulty. Examine the MPU status LED to further determine the MPU status.

LED status

Description

The MPU is active.

Off

· The MPU is in standby status.

· The MPU is faulty. Examine the MPU status LED to further determine the MPU status.

Switch fabric module status LEDs

The MPU provides a switch fabric module status LED (SFC) to indicate the status of the switch fabric modules.

Table3-9 Switch fabric module status LED description

Status	Description
Flashing green (once per two seconds)	All switch fabric modules are operating correctly.
Steady green	A minimum of one switch fabric module has been isolated.
Steady red	Possible reasons are as follows: · A minimum of one switch fabric module is starting up or loading software. · A high severity alarm has occurred on a minimum of one switch fabric module or a minimum of one switch fabric module is faulty. · The temperature of a switch fabric module has exceeded the upper warning threshold or fell below the lower warning threshold.
Off	No switch fabric module is present or all present switch fabric modules are faulty.

NOTE:

If an alarm with a higher priority has occurred on a switch fabric module when the SFC LED is steady green, the LED becomes steady red.

Service module LEDs

Service module status LEDs

Each service module provides a RUN/ALM LED to indicate their operating status.

Table3-10 Service module status LED description

Status	Description
Flashing green (once per two seconds)	The service module is operating correctly.
Flashing green (four times per second)	The service module is loading software.
Steady green	The service module is starting up.
Steady red	A high severity alarm has occurred on the service module or the service module is faulty.
Flashing red (four times per second)	The service module temperature has exceeded the upper warning threshold or fell below the lower warning threshold.
Off	The service module is not in position or is faulty.

RJ-45 port LEDs

The service modules provide one LED for each RJ-45 port to indicate the link status and data receiving/transmitting status of the RJ-45 ports.

Table3-11 RJ-45 port LED description

LED status	Description
Flashing	The RJ-45 port is receiving or sending data.
On	A link is present.
Off	No link is present.

SFP port LEDs

The service modules provide one LED for each SFP port to indicate the link status and data receiving/transmitting status of the SFP ports.

Table3-12 SFP port LED description

LED status	Description
Flashing	The SFP port is receiving or sending data.
On	A link is present.
Off	No link is present.

SFP+ port LEDs

The service modules provide one LED for each SFP+ port to indicate the link status and data receiving/transmitting status of the SFP+ ports.

Table3-13 SFP+ port LED description

LED status	Description
Flashing	The SFP+ port is receiving or sending data.
On	A link is present.
Off	No link is present.

NOTE:

The data rate of an SFP+ port is 1 Gbps when its LED is green and 100 Mbps when its LED is yellow.

SFP28 port LEDs

The service modules provide one LED for each SFP28 port to indicate the link status and data receiving/transmitting status of the SFP28 ports.

Table3-14 SFP28 port LED description

LED status	Description
Flashing	The SFP28 port is receiving or sending data.
On	A link is present.
Off	No link is present.

QSFP+ port LEDs

The service modules provide one LED for each QSFP+ port to indicate the link status and data receiving/transmitting status of the QSFP+ ports.

Table3-15 QSFP+ port LED description

QSFP+ port operating mode	LED status	Description
Non-breakout mode	Flashing	The QSFP+ port is receiving or sending data.
	On	A link is present.
	Off	No link is present.
Breakout mode	Flashing	The QSFP+ port is receiving or sending data on a minimum of one link.
	On	A minimum of one link is present.
	Off	No link is present.

QSFP28 port LEDs

The service modules provide one LED for each QSFP28 port to indicate the link status and data receiving/transmitting status of the QSFP28 ports.

Table3-16 QSFP28 port LED description

LED status	Description
Flashing	The QSFP28 port is receiving or sending data.
On	A link is present.
Off	No link is present.

NOTE:

The LED for a QSFP28 port is yellow if the port supports data rate change from 100 Gbps to 40 Gbps and is green if the port does not support data rate change from 100 Gbps to 40 Gbps.

QSFP-DD port LEDs

The service modules provide a LED for each QSFP-DD port to indicate the link status and data receiving/transmitting status of the QSFP-DD ports.

Table3-17 QSFP-DD port LED description

LED status	Description
Flashing	The QSFP-DD port is receiving or sending data.
On	A link is present on the QSFP-DD port.
Off	No link is present on the QSFP-DD port.

Switch fabric module status LEDs

A switch fabric module has a RUN/ALM LED to indicate its operating status.

Table3-18 Description for the RUN/ALM LED on a switch fabric module

LED status	Description
Flashing green (once per two seconds)	The switch fabric module is operating correctly.
Flashing green (four times per second)	The switch fabric module is starting up.
Steady green	The switch fabric module has been isolated.
Steady red	A high severity alarm has occurred on the switch fabric module or the switch fabric module is faulty.
Flashing red (once per four seconds)	The switch fabric module temperature has exceeded the upper warning threshold or fell below the lower warning threshold.
Off	The switch fabric module is not in position or is faulty.

Fan tray LEDs

Fan tray status LEDs

A fan tray uses an OK/FAIL LED to indicate its operating status.

Table3-19 Fan tray status LED description

Status	Description
Steady green	The fan tray is operating correctly.
Steady red	The fan tray is faulty.
Off	The fan tray is not powered on.

Switch fabric module status LEDs on a fan tray

A fan tray provides a RUN/ALM LED for each switch fabric module it covers.

Table3-20 Description for switch fabric module status LEDs on a fan tray

Status	Description
Flashing green (once per two seconds)	The switch fabric module is operating correctly.
Flashing green (four times per second)	The switch fabric module is starting up.
Steady green	The switch fabric module has been isolated.
Steady red	A high severity alarm has occurred on the switch fabric module or the switch fabric module is faulty.
Flashing red (once per four seconds)	The switch fabric module temperature has exceeded the upper warning threshold or fell below the lower warning threshold.
Off	The switch fabric module is not in position or is faulty.

NOTE:

The switch fabric module LEDs on a fan tray indicate the status of the switch fabric modules the fan tray covers from left to right.

Figure3-3 Relations between the LEDs and switch fabric module slots (S10506X-G as an example)

(1) LEDs for the switch fabric module slots 8 and 9

(2) LEDs for the switch fabric module slots 10 and 11

Power supply LEDs

Table3-21 Power supply LED description

Power supply model	LED mark/LED status		Description
PSR1600B-12A-B	Steady green		The power supply is operating correctly.
	Flashing green (once per two seconds)		The power supply has correct power input and is in standby state with 12 V standby output and without 12 V main output.
	Flashing green (twice per second)		The power supply is updating software.
	Flashing green (once per three seconds)		The power supply has entered cold redundancy state.
	Steady yellow		The power supply is faulty.
	Flashing yellow (once per second)		· The power supply is operating correctly, but an alarm has occurred (such as input undervoltage, output overcurrent, and overtemperature). · The power supply does not have power input, but the backup power supplies have correct power input.
	Off		No power input.
PSR1600-54A-B	OUT OK	Steady green	Normal power output.
		Flashing green	Normal power input, and 12 V output disabled.
		Steady red	The power supply has entered protection state (no power output).
		Alternating between red and green (once per second)	Abnormal power input and output.
		Off	No power output.
	IN OK	Steady green	Normal power input.
		Steady red	Abnormal power input.
		Off	No power input.
PSR2000-12D-B	Steady green		The power supply is operating correctly.
	Flashing green (once per second)		The power supply is updating software.
	Flashing green (once per two seconds)		The power supply has correct power input and is in standby state with 12 V standby output and without 12 V main output.
	Steady red		The power supply is faulty.
	Flashing yellow (once per second)		The power supply does not have power input, but the backup power supplies have correct power input.
	Flashing yellow (twice per second)		The power supply is operating correctly, but an alarm has occurred (such as input undervoltage, output overcurrent, and overtemperature).
	Off		No power input.

4 Cables

This chapter describes cables used for connecting network ports.

Table4-1 Cable description

Cable	Port type	Application
Console cable	RJ-45 Ethernet port at one end and DB-9 port at the other end	Connects the console port of the switch to the console terminal.
Ethernet twisted pair cable	RJ-45 Ethernet ports	Connects RJ-45 Ethernet ports to transmit data.
Optical fiber	SFP/SFP+ ports	Connects the fiber ports to transmit data.
SFP+ DAC cable	SFP+ ports	Connects SFP+ ports to transmit data.
SFP28 DAC cable	SFP28 ports	Connects SFP28 ports to transmit data.
SFP28 AOC cable	SFP28 ports	Connects SFP28 ports to transmit data.
QSFP+ DAC cable	QSFP+ ports	Connects QSFP+ ports to transmit data.
QSFP+ AOC cable	QSFP+ ports	Connects QSFP+ ports to transmit data.
QSFP28 DAC cable	QSFP28 ports	Connects QSFP28 ports to transmit data.
QSFP28 AOC cable	QSFP28 ports	Connects QSFP28 ports to transmit data.
QSFP+ to SFP+ DAC cable	QSFP+ port at one end and SFP+ ports at the other end	Connects the QSFP+ port and SFP+ ports to transmit data.
QSFP28 to SFP28 DAC cable	QSFP28 port at one end and SFP28 ports at the other end	Connects the QSFP28 port and SFP28 ports to transmit data.
QSFP-DD copper cable	QSFP-DD ports	Connects QSFP-DD ports to transmit data.

Console cable

A console cable is an 8-core shielded cable, with a crimped RJ-45 connector at one end for connecting to the console port of the switch, and a DB-9 female connector at the other end for connecting to the serial port on the console terminal.

Figure4-1 Console cable

Table4-2 Connection between the console ports on the switch and console ports on a PC (terminal)

RJ-45	Signal	DB-9	Signal
1	RTS	8	CTS
2	DTR	6	DSR
3	TXD	2	RXD
4	SG	5	SG
5	SG	5	SG
6	RXD	3	TXD
7	DSR	4	DTR
8	CTS	7	RTS

Ethernet twisted pair cable

An Ethernet twisted pair cable consists of four pairs of insulated wires twisted together. It mainly transmits analog signals and is advantageous in transmitting data over shorter distances. The maximum transmission distance is 100 m (328.08 ft). To increase the transmission distance, you can install a maximum of four repeaters between two Ethernet twisted pair cables. With four repeaters installed, the maximum transmission distance can reach 500 m (1640.42 ft).

RJ-45 connector

An Ethernet twisted pair cable connects network devices through the RJ-45 connectors at the two ends. Figure4-2 shows the pinouts of an RJ-45 connector.

Figure4-2 RJ-45 connector pinout diagram

Cable pinouts

EIA/TIA cabling specifications define two standards: 568A and 568B for cable pinouts.

· Standard 568A—pin 1: white/green stripe, pin 2: green solid, pin 3: white/orange stripe, pin 4: blue solid, pin 5: white/blue stripe, pin 6: orange solid, pin 7: white/brown stripe, pin 8: brown solid.

· Standard 568B—pin 1: white/orange stripe, pin 2: orange solid, pin 3: white/green stripe, pin 4: blue solid, pin 5: white/blue stripe, pin 6: green solid, pin 7: white/brown stripe, pin 8: brown solid.

Cable type

Based on performance

Ethernet cables can be classified as category 3, category 4, category 5, category 5e, category 6, category 6A, and category 7 cables based on performance. Category 5, category 5e, and category 6 are the most commonly used twisted pair cables on LANs.

Table4-3 Ethernet cable description

Type	Description
Category 5	Transmits data at a maximum speed of 100 Mbps, with a bandwidth of 100 MHz.
Category 5e	Transmits data at a maximum speed of 1000 Mbps, with a bandwidth of 100 MHz.
Category 6	Transmits data at a speed higher than 1 Gbps, with a bandwidth of 250 MHz.
Category 6A	Transmits data at a speed higher than 10 Gbps, with a bandwidth of 500 MHz.
Category 7	Transmits data at a speed higher than 10 Gbps, with a bandwidth of 600 MHz.

Based on pinouts

Ethernet twisted pair cables can be classified into straight through and crossover cables based on their pinouts.

· Straight-through—The pinouts at both ends comply with standard 568B, as shown in Figure4-3.

· Crossover—The pinouts at one end comply with standard 568B, and those at the other end comply with standard 568A, as shown in Figure4-4.

Figure4-3 Straight-through cable

Figure4-4 Crossover cable

Pin assignments

Select an Ethernet twisted pair cable according to the RJ-45 Ethernet interface type on your device. An RJ-45 Ethernet interface can be MDI (for routers and PCs) or MDIX (for switches). For the pinouts of RJ-45 Ethernet interfaces, see Table4-4 and Table4-5.

Table4-4 RJ-45 MDI interface pinouts

Pin	10BASE-T/100BASE-TX		1000BASE-T
Pin	Signal	Function	Signal	Function
1	Tx+	Send data	BIDA+	Bi-directional data cable A+
2	Tx-	Send data	BIDA-	Bi-directional data cable A-
3	Rx+	Receive data	BIDB+	Bi-directional data cable B+
4	Reserved	N/A	BIDC+	Bi-directional data cable C+
5	Reserved	N/A	BIDC-	Bi-directional data cable C-
6	Rx-	Receive data	BIDB-	Bi-directional data cable B-
7	Reserved	N/A	BIDD+	Bi-directional data cable D+
8	Reserved	N/A	BIDD-	Bi-directional data cable D-

Table4-5 RJ-45 MDI-X interface pinouts

Pin	10BASE-T/100BASE-TX		1000BASE-T
Pin	Signal	Function	Signal	Function
1	Rx+	Receive data	BIDB+	Bi-directional data cable B+
2	Rx-	Receive data	BIDB-	Bi-directional data cable B-
3	Tx+	Send data	BIDA+	Bi-directional data cable A+
4	Reserved	N/A	BIDD+	Bi-directional data cable D+
5	Reserved	N/A	BIDD-	Bi-directional data cable D-
6	Tx-	Send data	BIDA-	Bi-directional data cable A-
7	Reserved	N/A	BIDC+	Bi-directional data cable C+
8	Reserved	N/A	BIDC-	Bi-directional data cable C-

To ensure normal communication, the pins for sending data on one port should correspond to the pins for receiving data on the peer port. When both of the ports on the two devices are MDI or MDIX, a crossover Ethernet cable is needed. A cross-over cable connects devices of the same type. When one port is MDI and the other is MDIX, a straight-through Ethernet cable is needed. A straight-through cable connects devices of different types.

An RJ-45 Ethernet interface with MDI/MDIX autosensing enabled can automatically negotiate pin roles. The S10500X-G RJ-45 Ethernet interfaces support MDI/MDIX. By default, MDI/MDIX is enabled on a port.

Making an Ethernet twisted pair cable

1. Cut the cable to length with the crimping pliers.

2. Strip off an appropriate length of the cable sheath. The length is typically that of the RJ-45 connector.

3. Untwist the pairs so that they can lie flat, and arrange the colored wires based on the wiring specifications.

4. Cut the top of the wires even with one another. Insert the wires into the RJ-45 end and make sure the wires extend to the front of the RJ-45 end and make good contact with the metal contacts in the RJ-45 end and in the correct order.

5. Crimp the RJ-45 connector with the crimping pliers until you hear a click.

6. Repeat the above steps with the other end of the cable.

7. Use a cable tester to verify the connectivity of the cable.

Optical fiber

CAUTION:

Use the same types of transceiver modules, pigtail cords, patch cords, and fiber cables. If you use single-mode optical fibers, the transceiver modules, pigtail cords, patch cords, and fiber cables must be single-mode.

Optical fiber

Optical fibers are widely used in fiber-optic communications, which are advantageous for long-distance communications.

Optical fibers can be classified into the following types:

· Single mode fiber—It has a core size of 10 µm or smaller, and has a lower modal dispersion. It carries only a single ray of light. It is mostly used for communication over longer distances.

· Multi-mode fiber—It has a core size of 50 µm or 62.5 µm or higher, and has a higher modal dispersion than single-mode optical fiber. It is mostly used for communication over shorter distances.

Table4-6 Allowed maximum tensile force and crush load

Period of force	Tensile load (N)	Crush load (N/mm)
Short period	150	500
Long term	80	100

Optical fiber cable

An optical fiber cable is a cable containing one or more optical fibers. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube. Optical fiber cables fall into single-mode and multi-mode.

Patch cord

A fiber that has connectors at both ends is called a patch cord. A patch cord connects one optical device to another for signal routing. Patch cords fall into single-mode and multi-mode patch cords.

· Single-mode patch cord—The jacket is yellow. It permits transmission over longer distances.

· Multi-mode patch cord—The jacket is orange. It permits transmission over shorter distances.

Patch cords are classified into SC, LC, FC, and so on based on interface type. The length of a patch cord can be 0.5 m (1.64 ft), 1 m (3.28 ft), 2 m (6.56 ft), 3 m (9.84 ft), 5 m (16.40 ft), 10 m (32.81 ft), and so on.

Pigtail cord

A pigtail cord is an optical fiber that has an optical connector on one end and a length of exposed fiber on the other. The end of the pigtail is fusion spliced to a fiber, connecting the fiber cable and transceiver.

Pigtail cords fall into single-mode (yellow) and multi-mode (orange), and can also be classified into SC, LC, FC, and so on based on interface type.

Fiber connector

Fiber connectors are indispensable passive components in an optical fiber communication system. They allow the removable connection between optical channels, which makes the optical system debugging and maintenance more convenient and the transit dispatching of the system more flexible.

Figure4-5 MPO connector

Figure4-6 LC connector

Precautions

· Make sure the fiber connector and fiber type match the transceiver module type.

· The fiber ports on the switch are provided with dust plugs. Insert the dust plugs into the fiber ports that you are not to use, to prevent particles from entering the ports.

· Fiber connectors must be protected under safe and reliable outer packing, and be fitted with dust caps. Fiber connectors must be installed with dust caps when they are not in use. Take care not to scratch their end face. Replace the dust cap if it is loose or polluted.

· Before connecting a fiber, use dust free paper and absolute alcohol to clean the end face of the fiber connector. You can brush the end face only in one direction. You also need to brush the end face of the fiber port.

· Never bend or curve a fiber when connecting it. After a fiber is installed well, the bend radius must be not less than 40 mm (the minimum dynamic bend radius is 20 D, and the minimum static bend radius is 10 D. D indicates the outer diameter of dust caps).

· If the fiber has to pass through a metallic board hole, the hole must have a sleek and fully filleted surface (the filleting radius must be not less than 2 mm). When passing through a metallic board hole or bending along the acute side of mechanical parts, the fiber must wear jackets or cushions.

· Insert and remove a plug with care. Never exert a fierce force to the fiber or plug; otherwise the plug might be damaged or the fiber might be broken. Never pull, press or extrude the fiber fiercely. For the allowed maximum tensile load and crush load, see Table4-6.