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S12700 Series Agile Switches Hardware Description

This document describes hardware components of the S12700, including the cabinet, chassis, power supply facilities, fan modules, cards, cables, and pluggable modules for interfaces. You can find useful information about S12700 hardware components from this document.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
S12704

S12704

Version Mapping

Table 4-2  Mapping between the S12704 chassis and software versions

Chassis

Version

S12704 chassis

Supported in V200R008C00 and later versions

Appearance and Structure

NOTE:
The figures in this document are for reference only.

The S12704 chassis is 10 U high (1 U = 44.45 mm). When the chassis has no cable management frames installed, the dimensions are 442 mm x 489 mm x 441.7 mm (W x D x H). When the chassis has cable management frames installed, the dimensions are 442 mm x 585 mm x 441.7 mm (W x D x H). Figure 4-1 and Figure 4-2 show the appearance of the S12704 chassis.

Figure 4-1  S12704 chassis appearance (front view)
Figure 4-2  S12704 chassis appearance (rear view)

Figure 4-3 shows the front structure of the S12704 chassis.

Figure 4-3  S12704 chassis structure (front view)
1. Two MPUs 2. Four of the following service cards can be installed:
  • Open Service Platform Unit
  • 1000M Interface Card
  • MultiGE Interface Card
  • GE/10GE Interface Card
  • 10GE Interface Card
  • 40GE Interface Card
  • 40GE/100GE Interface Card
  • 100GE Interface Card
NOTE:

The cards supported by a switch depend on the software version. For details, see Hardware Query Tool.

3. Two SFUs 4. A pair of mounting brackets
NOTE:

The mounting brackets are used to secure the chassis in a cabinet.

5. Four power modules 6. Two CMUs 7. Front ESD jack
NOTE:

The ground terminal of an ESD wrist strap can be inserted into this jack. The ESD wrist strap can provide ESD protection when the chassis is reliably grounded.

8. Cable management frames
NOTE:

The cable management frames separate cables on different cards and help route cables orderly.

Figure 4-4 shows the rear structure of the S12704 chassis.

Figure 4-4  S12704 chassis structure (rear view)
1. Two Fan Module 2. Rear ESD jack
NOTE:

The ground terminal of an ESD wrist strap can be inserted into this jack. The ESD wrist strap can provide ESD protection when the chassis is reliably grounded.

3. JG ground terminal
NOTE:

The two-hole OT terminal of a ground cable can be connected to the screws to ground the chassis.

4. Air filter
NOTE:

The air filter prevents dust from entering the chassis.

5. A pair of removable handles
NOTE:

You can install these handles on two sides of the chassis to lift the chassis.

- - -

Related Content

Interactive 3D views

Slot Configuration on the Chassis

The S12704 chassis provides four LPU slots, two SFU slots, two MPU slots, two CMU slots, and four power module slots.

Figure 4-5 shows the slot distribution at the front of the S12704 chassis, and Figure 4-6 shows the slot distribution at the rear of S12704 chassis.

Figure 4-5  Slot distribution in the S12704 chassis (front)
Figure 4-6  Slot distribution in the S12704 chassis (rear)

Table 4-3 describes the slot configurations in the S12704 chassis.

Table 4-3  S12704 slot configurations

Slot Type

Slot ID

Module Supported

Remarks

MPU slots

SLOT05, SLOT06

MPU

MPUs in the two slots work in active/standby mode.

SFU slots

SLOT07, SLOT08

SFU

One to two SFUs can be installed.

LPU slots

SLOT01 to SLOT04

  • Open Service Platform Unit
  • 1000M Interface Card
  • MultiGE Interface Card
  • GE/10GE Interface Card
  • 10GE Interface Card
  • 40GE Interface Card
  • 40GE/100GE Interface Card
  • 100GE Interface Card
NOTE:

The cards supported by a switch depend on the software version. For details, see Version Requirements for Components.

CMU slots

CMU1, CMU2

CMU

Two CMUs in the slots work in hot standby mode.

Power module slots

PWR1 to PWR4

power modules

-

Fan module slot

FAN1 to FAN2

Fan Module

-

Power Supply Slot Configuration

NOTE:

If a switch is running a version prior to V200R010C00, it does not allow combining the use of AC and DC power modules or power modules of different wattages. If the switch is running V200R010C00 or a later version, it allows combining the use of 2200 W AC and DC power modules. If the switch is running V200R012C00 or a later version, it allows combining the use of 2200 W AC, 2200 W DC, and 3000 W AC power modules.

The S12704 provides slots PWR1 to PWR4 for power modules, as shown in Slot distribution in the S12704 chassis (front).

The S12704 series switches support three redundancy modes of power modules: N+N, N+1, and N+0. The value of N depends on the maximum power actually required by the system. Ensure that the total maximum output power of N power modules (N x maximum output power of each power module) is larger than the maximum power actually required by the system. For example, the maximum power required by the system is 4000 W. If two 2200 W power modules are installed in the chassis, they work in 2+0 mode. If three 2200 W power modules are installed, they work in 2+1 redundancy mode. If four 2200 W power modules are installed, they work in 2+2 redundancy mode. The system can identify the power redundancy mode, and you do not need to manually configure the power redundancy mode. Table 4-4 describes the three power redundancy modes and the specific redundancy modes supported by the S12704 series switches.

Table 4-4  Description of power redundancy modes

Redundancy Mode

Description

Product Support

N+N
  • System power supply is not affected if no more than N power modules are removed or fail.
  • The maximum output power of the system is the total maximum output power of N power modules.
  • The first N represents mandatory power modules, and the second N represents optional power modules.
NOTE:

The N+N redundancy mode is often used when two power supply systems are available. In this case, the first N represents mandatory power modules for the first power supply system, and the second N represents mandatory power modules for the second power supply system. The use of double power supply systems provides redundancy for both power modules and power supply systems.

1+1 and 2+2 redundancy

N+1
  • System power supply is not affected if one power module is removed or fails.
  • The maximum output power of the system is the total maximum output power of N power modules.
  • N power modules are mandatory, and one power module is optional.

1+1, 2+1 and 3+1 redundancy

N+0 (no redundancy)
  • System power supply is affected once any power module is removed or fails.
  • The maximum output power of the system is the total maximum output power of N power modules.
  • N power modules are mandatory, and there are no optional power modules.

1+0, 2+0, 3+0, and 4+0

NOTE:
  • When using the N+N redundancy mode, equally divide the power modules into two groups and connect the two groups of power modules to two independent power supply systems. This configuration provides redundancy of power supply systems to enhance system reliability.

  • If the system power consumption exceeds 50% of a single power module's power, all power modules equally share the power consumption. This reduces the load of a single power module and improves the system reliability.

The following describes the power module configuration for an S12704 switch with different power supplies:

DC power input

Table 4-5 describes the power module configuration for the S12704 series switches when DC power input is provided.

Table 4-5  Power module configuration (DC power input)
Power Module Type Redundancy Mode Maximum Output Power
2200 W DC power module N+N

A maximum of 4 (2+2) 2200 W DC power modules can be configured, providing a maximum output power of 4400 W.

N+1

A maximum of 4 (3+1) 2200 W DC power modules can be configured, providing a maximum output power of 6600 W.

N+0 (no redundancy)

A maximum of 4 (4+0) 2200 W DC power modules can be configured, providing a maximum output power of 8800 W.

AC power input (220 V single-phase or 110 V dual-live-wire input)

NOTE:

If the input voltage is 110 V, the dual-live-wire input mode is recommended. In this case, the maximum output power of a 2200 W AC power module is 2200 W, the maximum output power of a 3000 W AC power module is 3000 W, the maximum output power of an 800 W AC power module is 800 W.

Table 4-6 describes the power module configuration for the S12704 series switches when 220 V single-phase or 110 V dual-live-wire AC power input is provided.

Table 4-6  Power module configuration (220 V single-phase or 110 V dual-live-wire AC power input)
Power Module Type Redundancy Mode Maximum Output Power
800 W AC power module N+N

A maximum of 4 (2+2) 800 W AC power modules can be configured, providing a maximum output power of 1600 W.

N+1

A maximum of 4 (3+1) 800 W AC power modules can be configured, providing a maximum output power of 2400 W.

N+0 (no redundancy)

A maximum of 4 (4+0) 800 W AC power modules can be configured, providing a maximum output power of 3200 W.

2200 W AC power module N+N

A maximum of 4 (2+2) 2200 W AC power modules can be configured, providing a maximum output power of 4400 W.

N+1

A maximum of 4 (3+1) 2200 W AC power modules can be configured, providing a maximum output power of 6600 W.

N+0 (no redundancy)

A maximum of 4 (4+0) 2200 W AC power modules can be configured, providing a maximum output power of 8800 W.

3000 W AC power module N+N

A maximum of 4 (2+2) 3000 W AC power modules can be configured, providing a maximum output power of 6000 W.

N+1

A maximum of 4 (3+1) 3000 W AC power modules can be configured, providing a maximum output power of 8800 W.

N+0 (no redundancy)

A maximum of 3(3+0) 3000 W AC power modules can be configured, providing a maximum output power of 8800 W.

AC power input (110 V single-live-wire input)

NOTE:

When 110 V single-live-wire AC power input is provided, the maximum output power of a 2200 W AC power module is 1100 W, the maximum output power of a 3000 W AC power module is 1500 W, the maximum output power of an 800 W AC power module is 400 W. In this case, it is recommended that you use the N+1 or N+0 redundancy mode to increase the maximum output power of the system.

Table 4-7 describes the power module configuration for the S12704 series switches when 110 V single-live-wire AC power input is provided.

Table 4-7  Power module configuration (110 V single-live-wire AC power input is provided)
Chassis Model Power Module Type Redundancy Mode Maximum Output Power (S12708&S12712)
S12704 800 W AC power module N+N

A maximum of 4 (2+2) 800 W AC power modules can be configured, providing a maximum output power of 800 W.

N+1

A maximum of 4 (3+1) 800 W AC power modules can be configured, providing a maximum output power of 1200 W.

N+0 (no redundancy)

A maximum of 4 (4+0) 800 W AC power modules can be configured, providing a maximum output power of 1600 W.

2200 W AC power module N+N

A maximum of 4 (2+2) 2200 W AC power modules can be configured, providing a maximum output power of 2200 W.

N+1

A maximum of 4 (3+1) 2200 W AC power modules can be configured, providing a maximum output power of 3300 W.

N+0 (no redundancy)

A maximum of 4 (4+0) 2200 W AC power modules can be configured, providing a maximum output power of 4400 W.

3000 W AC power module N+N

A maximum of 4 (2+2) 3000 W AC power modules can be configured, providing a maximum output power of 3000 W.

N+1

A maximum of 4 (3+1) 3000 W AC power modules can be configured, providing a maximum output power of 4500 W.

N+0 (no redundancy)

A maximum of 4 (4+0) 3000 W AC power modules can be configured, providing a maximum output power of 6000 W.

Heat Dissipation

NOTE:

It is recommended that you replace the air filter of a device every six months.

The cooling system of an S12704 chassis consists of fan modules behind the air exhaust vent (rear of the chassis) and air filters at the air intake vent (left side of the chassis).

  • The S12704 has two fan modules respectively, located at the rear of the chassis. The fan modules absorb airflow to exhaust the heat generated by cards and other modules out of the chassis, ensuring that the chassis works in a normal temperature range. For the performance and attributes of fan modules, see Fan Module.
  • Air filters on a chassis prevent dust from entering the chassis with the airflow.

The S12704 uses a multi-zone cooling system design. If there are empty slots in a zone, the fans in this zone run at a low speed to reduce power consumption and noises.

As shown in Figure 4-7, the S12704 has two fan zones, with four cards in each zone.

Figure 4-7  Fan zones in the S12704 chassis

Airflow

NOTE:

The S12704, S12708, and S12712 have the same airflow for heat dissipation. The S12708 is used as an example to describe the airflow.

The S12704 chassis uses a left-to-back airflow design. Air is absorbed into the chassis from the left side and exhausted out of the chassis from the rear. Figure 4-8 shows the airflow.

Figure 4-8  Airflow in the chassis

Air Filter

NOTE:

The switches may use honeycomb air filters or non-honeycomb air filters. The switches with honeycomb air filters installed in all air filter slots comply with Federal Communications Commission (FCC) standards.

An S12704 switch requires one S12704 air filter.

Figure 4-9 shows a non-honeycomb air filter for the S12704.

Figure 4-9  Non-honeycomb air filter

Figure 4-10 shows a honeycomb air filter for the S12704.

Figure 4-10  Honeycomb air filter

Specifications

Table 4-8  Specifications of the S12704 series switches

Item

Description

Number of LPU slots

4

Number of MPU slots

2

Number of SFU slots

2

Number of fan slots

2

Number of power module slots

4

Number of CMU slots

2

Port density per chassis

  • V200R008C00 to V200R009C00: 192xFE, 192xGE, 192x10GE, 64x40GE, 8x100GE
  • V200R010C00 to V200R011C10: 192xFE, 192xGE, 192x10GE, 32x40GE, 16x100GE
  • V200R012C00 and later versions: 192xFE, 192xGE, 192x10GE, 64x40GE, 32x100GE

Installation

The switch can be installed in an N66E or N68E cabinet, one cabinet for one chassis.

Cluster switch system (CSS)

CSS2, switch fabric hardware clustering

Maximum power consumption (full configuration)

NOTE:
The heat dissipation value of a chassis is equal to the current power consumption.

2550 W

Power specifications

  • DC input voltage

    Rated voltage: -48 V DC to -60 V DC

    Maximum voltage range: -40 V DC to -72 V DC

  • AC input voltage

    Rated voltage: 110 V AC/220 V AC, 50/60 Hz

    Maximum voltage range: 90 V AC to 290 V AC; 47 Hz to 63 Hz (The maximum output power reduces by a half when the input voltage ranges from 90 V AC to 175 V AC.)

  • HVDC input voltage (3000 W AC)

    Rated voltage: 240 V DC

    Maximum voltage range: 190 V DC to 290 V DC

Dimensions (W x D x H, excluding rack-mounting brackets)

  • With cable management frames: 442 mm x 585 mm x 441.7 mm (17.4 in. x 23.0 in. x 17.39 in. (10 U))
  • Without cable management frames: 442 mm x 489 mm x 441.7 mm (17.4 in. x 19.3 in. x 17.39 in. (10 U))

Weight (empty/fully loaded)

24.5 kg/71.3 kg (54 lb/157.2 lb)

Reliability and availability

  • Mean Time Between Failures (MTBF): 40.65 years
  • Mean time to repair (MTTR): 35 minutes
  • Availability: 0.999998837
NOTE:

The preceding values are calculated based on the typical configuration of the product. The actual values will vary depending on the modules installed on the product.

Environment specifications

  • Operating temperature and altitude:

    -60 m to +1800 m (197 ft. to 5906 ft.): 0°C to 45°C (32°F to 113°F)

    1800 m to 4000 m (5906 ft. to 13123 ft.): Operating temperature decreases by 1°C (1.8°F) every time the altitude increases 220 m (722 ft.).

    4000 m (13123 ft.): 0°C to 35°C (32°F to 95°F)

  • Operating relative humidity: 5% RH to 95% RH (noncondensing)
  • Storage temperature: -40°C to +70°C (-40°F to +158°F)
  • Storage altitude: < 5000 m (16404 ft.)
  • Storage relative humidity: 5% RH to 95% RH (noncondensing)

Noise under normal temperature (sound power)

≤ 77.8 dB(A)

Certification

  • EMC certification
  • Safety certification
  • Manufacturing certification

Part number

02114480

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Updated: 2019-05-15

Document ID: EDOC1000047496

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