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AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 Hardware Description

This document describes hardware components of the AR, including the cabinet, chassis, power supply facilities, fan modules, cards, cables, and pluggable modules for interfaces. You can find useful information about AR hardware components from this document.

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SRU40

SRU40

Card Overview

A Service and Router Unit (SRU) integrates the control and management functions and provides the control plane, management plane, and switching plane for the system.
  • Control plane: provides functions such as protocol processing, service processing, route calculation, forwarding control, service scheduling, traffic statistics collection, and system security.
  • Management plane: provides functions such as system monitoring, environment monitoring, log and alarm processing, system software loading, and system upgrade.
  • Switching plane: provides high-speed, non-blocking data channels for service switching between service modules.

Figure 7-3 shows the appearance of an SRU40 card.

Figure 7-3 SRU40 card appearance

Version Mapping

Table 7-2 lists the device models and software versions supporting the SRU40.

Table 7-2 Version mapping

Card Name

Device Model

SRU40

NOTE:

This SRU is supported in V200R001C00 and later versions.

AR2240

AR3260

Functions and Features

Table 7-3 describes the functions and features of the SRU40.

Table 7-3 Functions and features

Function and Feature

Description

Basic function

Stores system configuration data, startup files, upgrade software, and system running logs.

Voice function

Supported

Control module

Provides the control plane and management plane to implement functions such as protocol processing, route calculation, forwarding control, system management, and system security.

Switching module

Acts as the service switching plane and provides high-speed channels for service switching functions, including voice switching, data switching, and conversion between voice and data packets.

Power module

Provides power for other modules of the SRU.

Clock module

Not supported

Panel

Figure 7-4 shows the indicators on an SRU40 card, and Table 7-4 describes the indicator states and meanings.

Figure 7-4 SRU40 indicators
Table 7-4 Indicator description

Number

Indicator

Color

Description

1

SYS

Green

Slow blinking: The system is running properly.

Fast blinking: The system is being powered on or restarting.

Red

Steady on: A fault that affects services has occurred and cannot be rectified automatically. The fault needs to be rectified manually.

Off

The system software is not running or is resetting.

2

ACT (active/standby status indicator)

Green

Steady on: The SRU is in active state.

Off: The SRU is in standby state.

3

Micro SD

Green

Steady on: A link has been established.

Blinking: Data is being transmitted or received.

Off: No SD card is installed or the SD card is damaged.

4

ACT (USB)

Red and green

Steady green: The system has been upgraded or configured using a USB flash drive.

Blinking green: The system is being upgraded or configured using a USB flash drive.

Steady red: The system fails to be upgraded or configured using a USB flash drive.

Off: No USB flash drive is connected, the USB interface has failed, or the indicator has failed.

5 and 6
GE optical interface indicators:
  • 5: LINK indicator, green
  • 6: ACT indicator, yellow

Green

LINK indicator steady on: A link has been established on the interface.

LINK indicator off: No link is established on the interface.

Yellow

ACT indicator blinking: Data is being transmitted or received on the interface.

ACT indicator off: No data is being transmitted or received on the interface.

7 and 8
GE electrical interface indicators:
  • 8: LINK indicator, green
  • 7: ACT indicator, yellow

Green

LINK indicator steady on: A link has been established on the interface.

LINK indicator off: No link is established on the interface.

Yellow

ACT indicator blinking: Data is being transmitted or received on the interface.

ACT indicator off: No data is being transmitted or received on the interface.

9

Mini USB EN

Green

Steady on: The Mini USB interface is enabled.

Off: The Mini USB interface is disabled.

10

CON/AUX EN

NOTE:
  • The CON/AUX interface and the Mini USB interface are multiplexed, and only one of them can be used at a time.
  • By default, the CON/AUX interface is effective and the EN indicator is steady green, regardless of whether a cable is connected to the interface.

Green

Steady on: The CON/AUX interface is enabled.

Off: The CON/AUX interface is disabled.

11

RST button
NOTICE:

This button is used to reset the SRU manually. Resetting the SRU will cause service interruption. Exercise caution when using this button.

Figure 7-5 shows the interfaces on the SRU40.

Figure 7-5 Interfaces on the SRU40

1. Micro SD interface

NOTE:

This is an extended SD card slot, where an SD card can be installed.

2. USB interface

3. GE combo interface

4. GE electrical interface (management interface)

5. Mini USB interface

6. CON/AUX interface

USB interface

A USB interface provides up to 480 Mbit/s upload and download rates. Table 7-5 lists attributes of a USB interface.
Table 7-5 USB interface attributes

Attribute

Description

Connector type

Type A

Standards compliance

USB2.0

Working mode

Host

GE combo interface

A GE combo interface consists of an optical Ethernet interface and an electrical Ethernet interface on the panel. The two interfaces have only one internal forwarding interface. The electrical and optical interfaces are multiplexed, and only either of them can work at a time. When either of the Ethernet interfaces is working, the other interface is shut down.
  • The GE electrical interface (10/100/1000 Mbit/s auto-sensing) transmits and receives services at 10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s. It must be used with an Ethernet Cable.
  • The GE optical interface (100/1000 Mbit/s auto-sensing) transmits and receives services at 100 Mbit/s or 1000 Mbit/s. It must be used with an Optical Fiber, GE eSFP Optical Modules, or FE SFP/eSFP Optical Modules.
  • In V200R008C30 and earlier versions, a combo interface works as an electrical interface and uses a network cable to transmit and receive data by default.
  • In V200R008C50 and later versions, a combo interface works in auto mode and automatically works as an optical or electrical interface by default.

GE electrical interface

A GE electrical interface (10/100/1000 Mbit/s auto-sensing) transmits and receives Ethernet services at 10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s. Table 7-6 lists attributes of a GE electrical interface.
Table 7-6 GE electrical interface attributes

Attribute

Description

Connector type

RJ45

Interface attribute

MDI/MDIX

NOTE:
  • MDI stands for medium dependent interface, an Ethernet interface connection mode. Ethernet interfaces of most network adapters are MDI interfaces.
  • MDIX stands for medium dependent interface crossover, a version of MDI. MDIX interfaces are usually used on hubs or LAN switches.

Standards compliance

IEEE802.3, IEEE802.3u, IEEE802.3ab

Frame format

Ethernet_II, Ethernet_SAP, Ethernet_SNAP

Network protocol

IP

Cable type

Ethernet Cable

Mini USB interface

A Mini USB interface can connect to an operation terminal for onsite configuration. The Mini USB interface and console interface cannot be used at the same time. By default, the console interface works. Table 7-7 lists attributes of a Mini USB interface.
Table 7-7 Mini USB interface attributes

Attribute

Description

Connector type

Mini USB-B-angle

Standards compliance

USB2.0

Working mode

Device

CON/AUX interface

The console interface of a router can connect to an operation terminal for onsite configuration. An AUX interface can connect to a remote management center through a modem for remote configuration. Table 7-8 lists the CON/AUX interface attributes.
Table 7-8 CON/AUX interface attributes

Attribute

Description

Connector type

RJ45

Standards compliance

RS232

Working mode

Full-duplex Universal Asynchronous Receiver/Transmitter (UART)

Data equipment type
  • Data circuit terminal equipment (DCE)
  • AUX interface: data terminal equipment (DTE)

Cable type

Console Cable

Technical Specifications

Table 7-9 lists the technical specifications of the SRU40.

Table 7-9 Technical specifications

Item

Specifications

Card type

EXSIC

Hot swap

Supported

Processor

8-core, 600 MHz

Memory

2 GB

Flash

16 MB

Micro SD card (sd1 by default)

2 GB

Hard disk

Not supported

DSP DIMM slot

Supported

Physical specifications
  • Dimensions (H x W x D): 40.14 mm x 402.8 mm x 270.85 mm (1.58 in. x 15.86 in. x 10.66 in.)
  • Maximum power consumption: 61 W
  • Weight: 2.1 kg (4.63 lb)

Environment parameters
  • Operating temperature: 0°C to 45°C (32°F to 113°F)
  • Operating relative humidity: 5% to 95%, noncondensing
  • Storage temperature: -40°C to +70°C (-40°F to +158°F)
  • Operating altitude: 0 m to 5000 m (0 ft. to 16404.2 ft.)

Ordering Information

To place an order, visit https://e.huawei.com/en/how-to-buy to find the local supplier or submit your inquiries online.

Table 7-10 provides the SRU40 ordering information.

Table 7-10 Ordering information

Part Number

Model

Name Label (Silkscreen)

Description

03022UFT

AR01SRU2C

SRU40

Service and Router Unit 40,3GE WAN(2GE Combo),2 USB,3 DSP Slots
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Updated: 2023-08-08

Document ID: EDOC1000009848

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