H3C MSR 20-2X User Manual
Hangzhou H3C Technologies Co., Ltd.
http://www.h3c.com
Document version: T2-08047K-20101217-C-1.05
H3C MSR 20 Routers
Installation Guide
Copyright © 2006-2010, Hangzhou H3C Technologies Co., Ltd. and its licensors
All rights reserved
No part of this manual may be reproduced or transmitted in any form or by any means without prior
written consent of Hangzhou H3C Technologies Co., Ltd.
Trademarks
H3C,
SecPro, SecPoint, SecEngine, SecPath, Comware, Secware, Storware, NQA, VVG, V
XGbus, N-Bus, TiGem, InnoVision and HUASAN are trademarks of Hangzhou H3C Technologies Co.,
Ltd.
All other trademarks that may be mentioned in this manual are the property of their respective owners
Notice
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.
Environmental protection
This product has been designed to comply with the environmental protection requirements. The storage,
use, and disposal of this product must meet the applicable national laws and regulations.
, Aolynk, , H3Care,
, TOP G, , IRF, NetPilot, Neocean, NeoVTL,
2
G, VnG, PSPT,
Preface
The H3C MSR 20 Routers Installation Guide describes how to install the H3C MSR 20 Routers, maintain
software and hardware of the router, and solve problems you may encounter during the installation
process.
This preface includes:
•
Audience
Conventions
•
About the H3C MSR documentation set
•
Obtaining documentation
•
Technical support
•
Documentation feedback
•
Audience
This documentation is intended for:
• Network planners
• Field technical support and servicing engineers
• Network administrators working with the MSR Series
Conventions
This section describes the conventions used in this documentation set.
Symbols
Convention Description
WARNING
CAUTION
IMPORTANT
NOTE
TIP
Network topology icons
An alert that calls attention to important information that if not understood or followed can
result in personal injury.
An alert that calls attention to important information that if not understood or followed can
result in data loss, data corruption, or damage to hardware or software.
An alert that calls attention to essential information.
An alert that contains additional or supplementary information.
An alert that provides helpful information.
Represents a generic network device, such as a router, switch, or firewall.
Represents a routing-capable device, such as a router or Layer 3 switch.
Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports
Layer 2 forwarding and other Layer 2 features.
About the H3C MSR documentation set
The H3C MSR documentation set includes:
Category Documents Purposes
MSR 900 Routers Marketing
brochures
MSR 20-1X Routers Marketing
brochures
Product description and
specifications
MSR 20-2X[40] Routers Marketing
brochures
MSR 30 Routers Marketing brochures
MSR 50-40[60] Routers Marketing
brochures
MSR 900 Routers Installation guide
MSR 20-1X Routers Installation guide
Describe product specifications and
benefits.
Hardware specifications
and installation
Software configuration
Operations and
maintenance
MSR 20-2X[40] Routers Installation
guide
MSR 30 Routers Installation guide
MSR 50 Routers Installation guide
MSR Series Routers Interface Module
Manual
MSR Series Routers Configuration
guides
MSR Series Routers Command
references
MSR Series Routers Web
Configuration guides
MSR Basic Series Routers Release
notes
MSR Standard Series Routers Release
notes
Provides a complete guide to hardware
installation and hardware
specifications.
Describe software features and
configuration procedures.
Provide a quick reference to all
available commands.
Describe Web software features and
configuration procedures.
Provide information about the product
release, including the version history,
hardware and software compatibility
matrix, version upgrade information,
technical support information, and
software upgrading.
Obtaining documentation
You can access the most up-to-date H3C product documentation on the World Wide Web at
http://www.h3c.com.
Click the links on the top navigation bar to obtain different categories of product documentation:
[Technical Support & Documents > Technical Documents] – Provides hardware installation, software
upgrading, and software feature configuration and maintenance documentation.
[Products & Solutions] – Provides information about products and technologies, as well as solutions.
[Technical Support & Documents > Software Download] – Provides the documentation released with the
software version.
Technical support
customer_service@h3c.com
http://www.h3c.com
Documentation feedback
You can e-mail your comments about product documentation to info@h3c.com.
We appreciate your comments.
Contents
Overview ······································································································································································ 1
Introduction ········································································································································································1
Router Model and Structure ·············································································································································1
Hardware Specifications ·········································································································································1
MSR 20-20 Router····················································································································································2
MSR 20-21 Router····················································································································································4
MSR 20-40 Router····················································································································································6
Generic Modules·······························································································································································8
SIC and DSIC Interface Cards ································································································································8
ESM Module ·····························································································································································8
VPM and VCPM Module ·········································································································································9
Installation Preparations ············································································································································10
Requirements on Environment ······························································································································ 10
Requirements on Temperature/Humidity ············································································································ 10
Requirements on Cleanness·································································································································· 10
Requirements on Electrostatic Discharge Prevention·························································································· 11
Requirements on Electromagnetic Environments ································································································11
Requirements on Preventing Lightning················································································································· 11
Checking the Rack················································································································································· 12
Safety Precautions ················································································································································· 12
Installation Tools and Meters and Equipments ··································································································· 12
Installation···································································································································································14
Installation Process ·························································································································································14
Installing the Cabinet ····················································································································································· 14
Installing the Router························································································································································ 14
Installing the Router on a Workbench················································································································· 15
Installing the Router in a Cabinet ························································································································ 15
Installing Generic Modules ··········································································································································· 17
Connecting the PGND Cable ······································································································································· 17
Connecting the Power Cord·········································································································································· 18
Power Input and PGND········································································································································ 18
Connecting the AC-input Power Cord················································································································· 18
Connecting the Console Terminal ································································································································ 19
Fixed Interfaces ······························································································································································20
Ethernet Interface··················································································································································· 20
Ethernet Switching Interface ································································································································· 21
Connecting AUX to a Modem······························································································································ 22
Interface Modules··························································································································································· 23
Installing and Removing Interface Modules················································································································· 23
Slide Rail ································································································································································ 24
Installing a DSIC Interface Card ··························································································································24
Removing a DSIC Interface Card ························································································································25
Verifying Installation ······················································································································································ 25
Startup and Configuration·········································································································································26
Startup ············································································································································································· 26
Setting up Configuration Environment ················································································································ 26
Powering on the Router········································································································································· 28
i
Startup Process······················································································································································· 29
Configuration Fundamentals ········································································································································· 30
Basic Configuration Procedures··························································································································· 30
Command Line Interface······································································································································· 30
Arranging Slots and Numbering Interfaces········································································································ 31
Software Maintenance···············································································································································33
Introduction ····································································································································································· 33
Files········································································································································································· 33
Software Maintenance Methods·························································································································· 34
Maintaining Application Program and Configuration Through Command Lines···················································· 35
Maintaining the Router Through TFTP Server ····································································································· 36
Maintaining the Router Through FTP Server ······································································································· 38
BootWare Menu····························································································································································· 41
Main BootWare Menu·········································································································································· 41
BootWare Submenus ············································································································································ 43
Upgrading an Application Program Through an Ethernet Interface········································································· 46
Configuring Ethernet Interface Parameters ········································································································· 46
Upgrading Procedure ···········································································································································47
Upgrading BootWare Through Ethernet Interface······································································································ 49
Upgrading BootWare Through Serial Interface·········································································································· 49
XModem Protocol Overview ································································································································ 49
Modifying Serial Interface Parameters················································································································ 50
Upgrading BootWare··········································································································································· 51
Upgrading an Application Program through a Serial Interface················································································ 53
Maintaining Application and Configuration Files ······································································································ 53
Dealing with Password Loss·········································································································································· 55
User Password Loss ··············································································································································· 55
BootWare Password Loss ····································································································································· 56
Super Password Loss············································································································································· 56
Backing Up and Restoring BootWare·························································································································· 57
Hardware Maintenance ············································································································································58
Preparing Tools ······························································································································································ 58
Opening/Closing Chassis Cover ·································································································································58
Internal Structure····························································································································································· 60
Installing/Removing CF Card ······································································································································· 61
Structure·································································································································································· 61
Installing CF Card ················································································································································· 61
Removing CF Card················································································································································ 62
Replacing Memory Bar·················································································································································· 62
Memory Bar Structure ··········································································································································· 63
Memory Bar Slot···················································································································································· 64
Installing/Removing Memory Bar························································································································ 64
Installing/Removing ESM/VCPM Card ······················································································································· 65
Troubleshooting··························································································································································67
Troubleshooting the Power System······························································································································· 67
Troubleshooting the Configuration System·················································································································· 67
Troubleshooting Application Software Upgrade ········································································································ 68
Index ···········································································································································································70
ii
Overview
Introduction
MSR 20 Routers were self-developed for use on enterprise-level networks. Depending on the network size,
MSR 20 Routers can be either core routers on small and medium enterprise networks, or access routers
for network branches on some large-sized enterprise networks. Therefore, MSR 20 Routers are suitable
for the application on the carrier-level networks, such as telecom management networks and billing
networks. MSR 20 Routers adopt modular design and provide a wide range of optional smart interface
cards (SICs). The MSR-20, MSR 20-21 and MSR 20-40 are available with AC-powered units.
Currently, the MSR 20 includes the following models:
• MSR 20-20
• MSR 20-21
• MSR 20-40
Router Model and Structure
The MSR 20 Routers include MSR 20-20, MSR 20-21, and MSR 20-40. These three models are similar
in chassis structure and layout. All of them can be put on the tabletop and can be mounted in 19-inch
standard racks. The following subsections will give you more details about these three models.
Hardware Specifications
Table 1 Hardware specifications for the MSR 20 routers
Item MSR 20-20 MSR 20-21 MSR 20-40
Console 1 1 1
AUX 1 1 1
Fixed
interfaces
External
modules
Internal
modules
Processor PowerPC PowerPC PowerPC
Boot ROM 4 MB 4 MB 4 MB
USB 1 1 1
FE Two FE interfaces Two FE interfaces Two FE interfaces
FE switching
interface
SIC module 2 SICs 2 SICs
ESM module 1 1 2
VCPM module 0 0 1
VPM strip 0 0 2
0 8 0
4 SICs (compatible
with 2 DSICs)
1
Item MSR 20-20 MSR 20-21 MSR 20-40
g
SDRAM
Memory
CF flash
Dimensions (H × W × D)
(excluding feet and mounting
brackets)
Weight 3.4 kg (7.5 lb.) 3.4 kg (7.5 lb.) 5.4 kg (11.9 lb.)
AC input
Max power consumption 54 W 54 W 100 W
Operating temperature
Relative humidity (non-condensing) 5% to 90% 5% to 90% 5% to 90%
Default: 128 MB
Maximum: 384 MB
Default: 256 MB
Maximum: 1 GB
44.2 × 360 × 287.1
mm (1.74 × 14.17 ×
11.3 in.)
Rated voltage: 100
VAC to 240 VAC;
50/60 Hz
0°C to 40°C (32°F to
104°F)
SDRAM
Default: 128 MB
Maximum: 384 MB
Default: 256 MB
Maximum: 1 GB
44.2 × 360 × 287.1
mm (1.74 × 14.17 ×
11.3 in.)
Rated voltage: 100
VAC to 240 VAC;
50/60 Hz
0°C to 40°C (32°F to
104°F)
SDRAM
Default: 128 MB
Maximum: 384 MB
Default: 256 MB
Maximum: 1 GB
44.2 × 442 × 407.1
mm (1.74 × 17.4 ×
16.02 in.)
Rated voltage: 100
VAC to 240 VAC;
50/60 Hz
0°C to 40°C (32°F to
104°F)
NOTE:
• The Boot ROM stores the Bootstrap for booting the router.
• The memory is used to store the communication data between the system and the CPU when the system
is running.
• The CF card is used to store the software system and configuration file. The CF card LED blinks when the
system is readin
/writing data from/to the CF card. In this case, do not remove the CF card, otherwise
hardware and software damage may occur.
• Do not unplug the USB device during USB data transmission; otherwise, data loss or even hardware
failures may occur.
• The USB interface does not support hot-swapping of USB modems from Sierra Wireless.
MSR 20-20 Router
Appearance
1. Front view
2
Figure 1 Front view of an MSR 20-20 router
(1) Power LED (PWR) (2) System LED (SYS)
(3) ESM LED (ESM)
2. Rear view
Figure 2 Rear view of an MSR 20-20 router
Panel LEDs
The following table gives the features of MSR 20-20 router LEDs:
Table 2 Front panel LEDs of an MSR 20-20 router
(1) SIC slot2 (2) SIC slot1
(3) Grounding terminal (4) Power socket
(5) Power switch (6) Fixed Ethernet port0 (LAN0)
(7) Fixed Ethernet interface 1 (LAN1) (8) Console port (CON)
(9) Auxiliary port (AUX) (10) USB interface
(11) CF card
LED Description
Power LED:
PWR
• ON means power is on.
• OFF means power is off.
System operating LED:
• Green and fast blinking means the system is booting.
SYS
• Green and slow blinking means the system is operating normally.
• Yellow and fast blinking means the system is malfunctioning.
• Steady OFF means the system does not operate normally.
3
LED Description
ESM module LED:
• Green and slow blinking means the system is booting.
ESM
• Green means ESM card is operation normally.
• Yellow means ESM card is malfunctioning.
• Steady OFF means no ESM card is present.
Table 3 Rear panel LEDs of an MSR 20-20 router
LED Description
LINK
ACT
• OFF means no link is present.
• ON means a link is present.
• OFF means no data is being transmitted or received.
• Blinking means data is being transmitted or received.
• Steady green means a CF card is present.
• Green and blinking means the CF card is reading/writing data. To prevent data
CF
corruption, do not remove the running CF card.
• Steady yellow means the present CF card is malfunctioning.
• Steady OFF means no CF card is present or the present CF card cannot be identified by
the system.
MSR 20-21 Router
Appearance
1. Front view
Figure 3 Front view of an MSR 20-21
(1) Power LED (PWR) (2) System LED (SYS)
(3) ESM LED (ESM)
2. Rear view
4
Figure 4 Rear view of an MSR 20-21
Panel LEDs
(1) SIC slot2 (2) SIC slot1
(3) Grounding terminal (4) Power socket
(5) Power switch (6) Fixed Ethernet port0 (LAN0)
(7) Fixed Ethernet port1 (LAN1) (8) Console port (CON)
(9) Auxiliary port (AUX) (10) USB interface
(11) CF card (12) Fixed L2 switching port (LAN2 through LAN9)
The following table gives the features of MSR 20-21 router LEDs:
Table 4 Front panel LEDs description of an MSR 20-21 router
LED Description
Power LED:
PWR
• ON means power is on.
• OFF means power is off.
System operating LED:
• Green and fast blinking means the system is booting.
SYS
• Green and slow blinking means the system is operating normally.
• Yellow and fast blinking means the system is malfunctioning.
• Steady OFF means the system does not operate normally.
ESM module LED:
• Green and slow blinking means the system is booting.
ESM
• Steady green means ESM card is operation normally.
• Steady yellow means ESM card is malfunctioning.
• Steady OFF means no ESM card is present.
Table 5 The rear panel LEDs of an MSR 20-21 router
LED Description
LINK
• OFF means no link is present.
• ON means a link is present.
5
LED Description
ACT
• OFF means no data is being transmitted or received.
• Blinking means data is being transmitted or received.
• Steady green means a CF card is present.
• Green and blinking means the CF card is reading/writing data. To prevent data
CF
corruption, do not remove the running CF card.
• Steady yellow means the present CF card is malfunctioning.
• Steady OFF means no CF card is present or the present CF card cannot be identified by
the system.
MSR 20-40 Router
Appearance
1. Front view
Figure 5 Front view of an MSR 20-40
(1) Power LED (POWER) (2) System LED (SYSTEM)
(3) Console port (CONSOLE) (4) Auxiliary port (AUX)
(5) USB interface (6) CF card
(7) Power socket (8) Power switch
2. Rear view
6
Figure 6 Rear view of an MSR 20-40
Panel LEDs
Description of LEDs on an MSR 20-40 router is as follows:
Table 6 Front panel LEDs of an MSR 20-40 router
(1) FE interface 0 (2) FE interface 1
(3) SIC slot1 (4) SIC slot2
(5) SIC slot3 (6) SIC slot4
(7) Grounding terminal (8) LEDs
LED Description
Power LED:
PWR
• ON means the circuit board supplies power normally.
• OFF means the circuit board does not supply power.
Hardware system operation LED:
SYS
• Blinking means the system is operating normally.
• Steady ON or steady OFF means the system does not operate normally.
CF card LED:
• Steady green means the CF card is in place, and can be identified by the router.
CF
• Blinking green means the CF card is being accessed and cannot be removed.
• Steady yellow means the CF card is in place, but cannot be identified by the router.
• OFF means no CF card is inserted or the CF card cannot be identified.
Table 7 Rear panel LEDs of an MSR 20-40 router
LED Description
LINK
ACT
• OFF means no link is present.
• ON means a link is present.
• OFF means no data is being transmitted or received.
• Blinking means data is being transmitted or received.
• OFF means no ESM is in the ESMx slot.
ESM0 to 1
• Steady green means an ESM is in the ESMx slot and operates normally.
• Steady yellow means an ESM is in the ESMx slot but does not operate normally.
7
LED Description
t
• OFF means no VCPM is in the slot.
VCPM
VPM0 to 1
• Steady green means a VCPM is in the slot and operates normally.
• Steady yellow means a VCPM is in the slot but does not operate normally.
• OFF means no VPM is in the VPMx slot.
• Steady green means a VPM is in the VPMx slot and operates normally.
• Steady yellow means a VPM is in the VPMx slot but does not operate normally.
Generic Modules
The MSR 20 is available with generic modules such as SIC interface card and ESM. For detailed
information about interface cards, refer to MSR Series Routers Interface Module Manual.
For the types of interface modules that each model of the MSR 20 routers can accommodate, refer to
Appendix A Interface Card and Interface Module Purchase Guide in the MSR Series Routers Interface
Module Manual.
SIC and DSIC Interface Cards
MSR series routers adopt modular design and support a wide range of optional SIC/DSIC interface
cards, providing various interfaces, such as synchronous/asynchronous serial interface, Ethernet
interface, E1/T1, ISDN BRI/PRI, ADSL, audio interface, and Layer 2 switching interface, and so on.
NOTE:
• For an MSR 20-40 router, 4FSW/1FEA/1GEC/1ADSL/1ADSL-I can only be installed in Slot 2 or Slo
4.
• Currently, MSR 20 routers do not support PoE and regard SIC-4FSW-POE and DSIC-9FSW-POE (if
used) as only ordinary Layer 2 switching modules.
ESM Module
• High-performance network data encryption ESM module (ESM-ANDE)
• Standard network data encryption ESM module (ESM-SNDE)
ESM module supports IPSec and by using hardware encryption expedites IP packet encryption. The use
of hardware encryption/decryption and hashing operation allows the router to encrypt packets with high
performance and reliability.
The encryption card is optional. On a router installed with an encryption card, the main control board
functions to route IP packets and implement encryption-enabled VPN, while the encryption card functions
to encrypt packets.
Table 8 Encryption card attributes
Attribute Description
Protocol IPsec
8
Attribute Description
Hardware encryption algorithm
VPM and VCPM Module
VPM (Voice Processing Module) functions to implement the encryption/decryption, EC and CNG of
voices.
VCPM (Voice Co-Processing Module) processes the voice data in combination with VPM.
• Voice co-processing module (RT-VCPM)
• 8-channel voice processing module (RT-VPM8)
• 16-channel voice processing module (RT-VPM16)
• 24-channel voice processing module (RT-VPM24)
• 32-channel voice processing module (RT-VPM32)
NOTE:
VPM/VCPM is only available on MSR 20-40.
Key algorithms: DES, 3DES, AES
Authentication algorithms: HMAC-MD5-96, HMAC-SHA-1-96
9
Installation Preparations
Requirements on Environment
The MSR 20 routers are designed for indoor applications. To ensure the normal operation and prolong
their service life, the following requirements for installation site must be met.
Requirements on Temperature/Humidity
To ensure the normal operation and prolong their service life, certain requirements on temperature and
humidity in the equipment room shall be met. If the relative humidity is too high, the insulation materials
in it will deteriorate easily or even lead to electric leakage. Sometimes this will result in change to the
mechanical performance of the materials and rusting of the metal components. If the relative humidity is
too low, the fastening screw will become loosen due to shrinkage of the isolation spacer. In an
environment with dry climate, static electricity may be produced, putting the CMOS of the router to risk.
High temperature is of the greatest risk: for it will significantly degrade the router’s reliability, speed up
aging process of the insulating materials, and shorten the service life of the router.
The requirements on the temperature and humidity for MSR 20 are shown in the following table:
Table 9 Temperature/humidity requirements in the equipment room
Temperature Relative humidity
0°C to 40°C (32°F to 104°F) 5% to 90% (non-condensing)
Requirements on Cleanness
Dust is harmful to the safe operation of the Router. Dust on the chassis may result in static absorption, t hus
causing poor contact of the metal connection components or points. Especially under the condition of
low indoor humidity, dust is easier to be absorbed.
The requirements on the dust concentration and diameter are shown in the following table:
Table 10 Limitation on dust content in equipment room
Diameter (μm) 0.5 1 3 5
Concentration
(particle/m³)
Besides the dust specifications, the equipment room of the Router should also meet the rigorous
requirements for the content of salt, acid and sulfide. These harmful gases could accelerate the metal
erosion and aging process of some parts. The specific limits of these harmful gases as SO
NH
and CI2 are given in the following table.
3
1.4 × 107
7 × 105
2.4 × 105
1.3 × 105
, H2S, NO2,
2
Table 11 Harmful limits in equipment room
Gas Max (mg/m
SO2 0.2
10
3
)
Gas Max (mg/m3)
H2S 0.006
NH3 0.05
CI2 0.01
Requirements on Electrostatic Discharge Prevention
Although many antistatic considerations have been given to MSR 20, damage to the router’s circuit or
even the whole equipment may still happen when the static electricity exceeds the tolerance threshold.
In the communication network to which the routers are connected, static induction mainly comes from two
aspects: external electric fields such as outdoor high voltage power line or thunder and internal
environment like flooring materials or the whole equipment structure. Thus, the following should be
considered to safeguard the equipment against ESD.
• Make sure that the equipment and the floor are well grounded.
• The equipment room is dust-proof.
• Maintain an appropriate humidity and temperature.
• Wear an ESD-preventive wrist strap and uniform when contacting the circuit board.
• Place the uninstalled circuit board on the antistatic workbench, with its face upward, or put it into
the static shielding bag.
• When observing or removing the uninstalled circuit board, please touch the edge of the circuit
board, and avoid contacting the devices on it.
Requirements on Electromagnetic Environments
The interference sources, no matter where they come from, affect the routers with capacitance coupling,
inductance coupling, radiation of electromagnetic wave, common impedance (including the grounding
system) or conducting line (power line, signal line and transmission line etc.). So the following should be
considered:
• Take effective measures to prevent the power system from being interfered with by the power grid
system.
• Use an earthing system or lightning protection grounding different from that for the power supply
equipment and keep them as far as possible.
• Keep the router far away from the radio launcher, radar launcher, and high-frequency devices
working in high current.
• Use electromagnetic shielding when necessary.
Requirements on Preventing Lightning
Although many measures have been taken to protect MSR 20 from lightning, if the lightning intensity
exceeds a certain range, damage to the router may still happen. To protect the router from lightning
better, the following should be considered:
• Ensure the PGND wire of the chassis is well grounded.
• Ensure the ground point of the socket of AC power supply is well grounded.
11
• To enhance the lightning protection capability of the power supply, a lightning arrester could be
installed at the input end of the power supply.
• As for the signal line outdoors to which the interface modules of MSR 20 routers are connected,
such as ISDN line, telephone line, E1/T1 line, etc, a special lightning arrester should be installed
at the input end of the signal line to enhance the lightning protection capability.
Checking the Rack
When installing MSR 20 Routers, observe the following:
• There is spacing reserved at the air inlet and outlet in the router so as to facilitate the radiation of
the router cabinet.
• Make sure that the rack has a good ventilation system.
• Make sure that the rack is sturdy enough to support the weight of the device and the installation
accessories.
• Make sure that the rack is well-grounded.
Safety Precautions
Routers play a key role in data communications network. Please pay attention to the following:
WARNING: indicates that this operation is incorrect and may seriously damage the router or
endanger the operator. Please follow the correct operation procedures for sake of safety.
CAUTION: indicates that during the installation and usage of the router, the operation needs
attention. If this operation is performed incorrectly, it might affect the operation of the router.
When installing or working on the router, you are recommended to:
• Keep the router far away from the heat sources and water/liquid.
• Make sure that the router has been correctly grounded.
• Wear an ESD-preventive wrist strap in installation and maintenance, making sure that the strap has
good skin contact.
• Do not hot swap the interface modules and interface cards of the router.
• Do not hot swap any cable.
• Correctly connect the interface cable for the router. Do not connect the telephone cable (including
the ISDN cable) to the AUX port or the console port.
• Use laser with caution. Do not directly stare into apertures or fiber-optic connectors that emit laser
radiation.
• Adopt uninterrupted power supply (UPS).
Installation Tools and Meters and Equipments
Tools
• Phillips screwdriver
• Straight screwdriver
• ESD-preventive twist strap
12
Cables
• PGND wire and power cord
• Console cable
• Optional cables
Meters and equipment
• Hub or LAN switch
• Console terminal (it could be a PC)
• Equipment related to the selected modules
• Multimeter
CAUTION:
None of the above-mentioned installation tools, meters, and equipment are shipped with MSR 20 routers.
13
Installation
Installation Process
Figure 7 MSR 20 Router installation process
Installing the Cabinet
For cabinet installation methods, refer to the part discussing cabinet installation. Skip this section if you
want to mount your router on the tabletop or the rack of another vendor.
Installing the Router
Table 12 describes physical dimensions of three models of the MSR 20 routers.
14
Table 12 Physical dimensions of the MSR 20 routers
Model
MSR 20-20 44.2 × 360 × 287.1 mm (1.74 × 14.17 × 11.3 in.)
MSR 20-21 44.2 × 360 × 287.1 mm (1.74 × 14.17 × 11.3 in.)
MSR 20-40 44.2 × 442 × 407.1 mm (1.74 × 17.4 × 16.02 in.)
Install the router after you have completed the installation preparations.
The router can be installed:
• On a workbench
• In a cabinet
Physical dimension
(H × W × D) (excluding feet and mounting brackets)
Installing the Router on a Workbench
In many circumstances, you may not own a 19-inch standard rack. Usually, the router will be installed on
a clean workbench. The operations are very simple, but still, you should be aware of the following items:
• Ensure the stability and well-grounding of the workbench.
• Reserve a space of 10 cm (3.9 in.) around the router for heat dissipation.
• Do not place heavy objects on the router to avoid extruding the device and affecting heat
dissipation performance.
Installing the Router in a Cabinet
You can install an MSR 20 router in a 19-inch standard cabinet, such as an H3C N68 rack. For the
installation of an N68 rack, refer to N68 Cabinet Installation Guide.
Mounting brackets
Figure 8 Mounting brackets
(1) Left-front mounting bracket (2) Right-front mounting bracket
(3) Left-rear mounting bracket (4) Right-rear mounting bracket
15
Installation process
Step1 Check the grounding and stability of the rack. Use the screws to fix the mounting brackets at both sides
of the front panel or the rear panel of the router.
Step2 Put the router in a rack tray. For MSR 20-40 routers, use dedicated ears mounted on the rear panel if no
tray is available. Depending on the actual situation, slide the router along the chassis guides to an
appropriate place.
Step3 Fasten the mounting brackets with the recess screws to fix the router in the rack horizontally and firmly.
The specifications of recess screws should satisfy the installation requirements and the surface of the
screws should be anti-rust.
Figure 9 Installing MSR 20 Router in a rack
16
Figure 10 Installing ears on the rear panel of the MSR 20-40 Router
Installing Generic Modules
Installing generic modules includes installing the memory, ESM cards, and FICs. For more information
about the memory and ESM cards and their installation, refer to Chapter 6 “Hardware Maintenance” in
this manual. For more information about FICs and their installation, refer to MSR Series Routers Interface
Module Manual.
Connecting the PGND Cable
WARNING!
The correct connection of the protection ground (PGND) cable on the router chassis is an essential
safeguard against lightning strokes and EMI. You need to correctly connect the PGND cable when
installing or using the router.
The power input end of MSR 20 router is connected to a noise filter. The neutral point of the noise filter
is directly connected to the chassis and is called protection grou nd ( PGND) . The PGN D wire must be well
grounded, so as to safely conduct the faradism and leaky electricity to the earth ground, and thereby
improve the capability of the whole device to guard against the electromagnetic interference. This PGND
wire can also protect the router against the lightning caused by the connection with the external network
lines, such as E1/T1 line, ISDN/PSTN line.
The grounding screw of MSR 20 Router, which is marked with grounding label, is located near the AC
power socket and its switch on the rear panel of the chassis, as shown in the following figure:
17
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