Installing and Cabling a Module

This chapter includes information about:

Introduction

The VPN 5000 concentrator series provides a network service provider (NSP) or enterprise customer with managed virtual private networks (VPNs) for one or more corporate sites.

The modules provide network interfaces, console access for the entire chassis, Flash memory storage for the software, and powerful processors for all platform functions. You can mix and match the following interfaces according to your network needs:

10/100BaseT Ethernet
DS3
HSSI

The concentrator pools module processing even if you are not using the physical interface, so you can add modules to support additional VPN connections.

See the Cisco VPN 5002 and 5008 Software Configuration Guide for more information about using the VPN 5002 or 5008 concentrator in your network.

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

Adding or Replaci ng a Module

If you want to add or remove a module, you can do so without disconnecting the device. You must always have a module in slot 0. Be sure to keep a cover plate over any empty slots to maintain proper air ventilation and minimize dust accumulation.

To remove and add a module, you need a Phillips screwdriver.

Warning Only trained and qualified personnel should be allowed to install or replace this equipment.

Warning Blank faceplates (filler panels) serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards and faceplates are in place.

Warning An uncovered slot is a high energy hazard. Do not place your hand or any object other than a module into a slot. Contact with any interior part could lead to a dangerous shock of electricity.

Step 1 Wear an electrostatic discharge (ESD)-preventive wrist strap and attach it to ground, such as the metal rack.

Step 2 Loosen the captive thumbscrews on both ends of the module or cover plate you want to remove.

Step 3 Grasping only the handles on both ends of the module or cover plate, slide it out of its slot.

Figure 1-1: Removing a Module or Cover Plate

Step 4 Place the module in a rack, a grounded anti-static surface, or other safe place.

Step 5 To add a module to an empty slot, grasp only the handles of the module, and slide it along the guides into the slot.

Step 6 Securely tighten the thumbscrews with the screwdriver.

Connecting the Consol e Cable

To set initial parameters for the system and modules, connect the provided console cable to the Console port on the module in slot 0. While each module includes a Console port, only the port in slot 0 controls the entire system.

For the VPN 5002 chassis, slot 0 is the top slot.
For the VPN 5008 chassis, slot 0 is the far left slot.

Cabling the Module

The following sections describe how to cable each module.

Cabling th e 10/100BaseT Et hernet Module

The 10/100BaseT Ethernet module automatically senses whether the Ethernet network is 10BaseT or 100BaseT. The following table describes the protocol and cable support for the 10/100BaseT Ethernet module:

Table 1-1: 10/100BaseT Ethernet Cabling Requirements

Item Specification

Ethernet types

10BaseT or 100BaseT autosensing

Cable type

10BaseT: Category 3 or greater UTP
100BaseT: Category 5 or greater UTP

Maximum cable length

328 ft (100 m)

Connector

RJ-45 male. See Table 2-9 for cable pinouts.

Item	Specification
Ethernet types	10BaseT or 100BaseT autosensing
Cable type	10BaseT: Category 3 or greater UTP 100BaseT: Category 5 or greater UTP
Maximum cable length	328 ft (100 m)
Connector	RJ-45 male. See Table 2-9 for cable pinouts.

Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables.

Cabling the D S3 Module

The DS3 module contains an integrated CSU/DSU for direct connection to a Frame Relay switch, a leased line, or other upstream equipment, such as another router.

The DS3 module includes two female 75-ohm BNC connectors labeled Tx and Rx. Using the cable specifications in Table 1-2, connect the Tx connector to the upstream equipment's Rx connector, and connect the Rx connector to the upstream equipment's Tx connector.

The following table describes the cable requirements for the DS3 module:

Table 1-2: DS3 Cabling Requirements

Item Specification

Cable type

AT&T type 734A or equivalent coaxial cable

Connector

AMP Incorporated 413589-7 or equivalent 75-ohm BNC connector

Maximum cable length

900 ft (274.32 m)

Item	Specification
Cable type	AT&T type 734A or equivalent coaxial cable
Connector	AMP Incorporated 413589-7 or equivalent 75-ohm BNC connector
Maximum cable length	900 ft (274.32 m)

To test t he line using loopback features, see the set wan ds3 command in the Cisco VPN 5000 Concentrator Series Command Reference Guide.

Warning The DS3 ports are not intended to be connected to cables that run outside the building where it is installed. For any connections outside the building, the DS3 ports must be connected to a network termination unit (NTU). NTU devices should comply with appropriate national safety standards such as UL 1950, CSA 950, EN 60950, IEC 950, and AS 3260.

Cabling the HSS I Module

The HSSI module can connect to an external CSU/DSU for connections to Frame Relay, a T3 leased line, or other upstream equipment, such as a router. To connect to another HSSI connector that is not on a CSU/DSU, such as another router, use a null mo dem cable.

The following table describes the cable requirements for the HSSI module.

Table 1-3: HSSI Cabling Requirements

Item Specification

HSSI cable type and connector for a CSU/DSU

The cable comprises 25 twisted pairs and a 50-pin SCSI-II-type plug at each end. Although the HSSI cable is similar to a SCSI-II cable, it is not identical; you cannot substitute a SCSI-II cable for a HSSI interface cable.

See Table 2-13 for cable pinouts.

Null modem cable type and connector for a direct HSSI connection

The null modem cable uses the same 50-pin connectors as the HSSI interface cable, but uses the pinouts in Table 2-14.

Item	Specification
HSSI cable type and connector for a CSU/DSU	The cable comprises 25 twisted pairs and a 50-pin SCSI-II-type plug at each end. Although the HSSI cable is similar to a SCSI-II cable, it is not identical; you cannot substitute a SCSI-II cable for a HSSI interface cable. See Table 2-13 for cable pinouts.
Null modem cable type and connector for a direct HSSI connection	The null modem cable uses the same 50-pin connectors as the HSSI interface cable, but uses the pinouts in Table 2-14.

To test t he line using loopback features, see the set wan hssi command in the Cisco VPN 5000 Concentrator Series Command Reference Guide.

Table of Contents

Installing and Cabling a Module