Installing the Cisco 3800 ERM

This chapter describes how to install the Cisco 3800 Expansion Router Module (ERM), and includes the following sections:

• Inspecting the System

• Required Tools and Parts

• Removing and Installing the Cisco 3800 ERM

• Connecting the ERM to the Cisco 3800 Combo Card

• Connecting to LANs

• Connecting a Terminal or PC to the ERM Console Port

• Connecting a Modem to the Auxiliary Port

• What to Do after Installing the ERM Hardware

Inspecting the System

Do not unpack the Cisco 3800 ERM until you are ready to install it. If the final installation site will not be ready for some time, keep the card in its shipping container to prevent accidental damage. When you have determined where you want the Cisco 3800 ERM installed, proceed with unpacking it.

The Cisco 3800 ERM and any optional equipment you ordered might be shipped in more than one container. When you unpack each shipping container, check the packing list to ensure that you received all of the following items:

• Cisco 3800 ERM

• Console and auxiliary cable kit

  • Standard RJ-45-to-RJ-45 rollover cable (see the section "Identifying a Rollover Cable" in the appendix "Cable Specifications" for more information)

  • Cable adapters

  RJ-45-to-DB-9 female DTE adapter (labeled Terminal)
  

  RJ-45-to-DB-25 female DTE adapter (labeled Terminal)
  

  RJ-45-to-DB-25 male DCE adapter (labeled Modem)
  

• EIA-530 straight-through serial transition cable

• Cisco Information Packet publication

• Cisco Documentation CD-ROM

• Cisco 3800 Expansion Router Module Installation and Configuration Manual (this publication)

• Optional printed publications, as specified on your order

Inspect all items for shipping damage. If anything appears to be damaged, or if you encounter problems when installing or configuring your system, contact customer service.

Required Tools and Parts

Installing the Cisco 3800 ERM requires some tools and parts that are not provided as standard equipment. The following tools and equipment, which are not included, are required to install the Cisco 3800 ERM in the Cisco 3800 chassis:

• Number 2 Phillips head screw driver

• ESD-preventive wrist strap

• A cable for each LAN interface

  • Ethernet 10BaseT cable for connection to the Ethernet port

  • Token Ring lobe cable for connection to the Token Ring port

• Ethernet 10BaseT hub or PC with a network interface card for connection to the Ethernet port

• Token Ring MAU for connection to the Token Ring (LAN) port

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Note For cable information, refer to the section "Preparing to Connect to a Network" in the chapter "Preparing to Install the Cisco 3800 ERM."

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• Console terminal (an ASCII terminal or a PC running terminal emulation software) configured for 9600 baud, 8 data bits, no parity, and 2 stop bits. A terminal is required unless you are using the AutoInstall procedure. See the section "Connecting a Terminal or PC to the ERM Console Port" later in this chapter for the procedure to connect a console terminal.

• Modem for remote access (optional).

Removing and Installing the Cisco 3800 ERM

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Note To perform this procedure, you do not need to remove the front cover from your Cisco 3800 unit. The ERM is fully accessible from the rear of the unit.

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

Warning Before handling the ERM, attach a wrist strap. Power OFF the Cisco 3800 chassis. The cannot be removed and inserted in the Cisco 3800 chassis while the system is up and running.

Step 1 Determine the ERM's slot in the chassis if you are replacing the ERM or removing it to perform maintenance procedures.

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Note If you are installing a new ERM, determine the slot where you want to install it and remove the blank filler plate from that slot.

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Step 2 Detach all cables.

Step 3 Unscrew the spring captive screws from the sides of the Cisco 3800 ERM.

Step 4 Press the ejector lever until you feel the Cisco 3800 ERM's backplane connector release from its seating in the front of the Cisco 3800.

Step 5 Pull the ERM out along the guides. If it sticks, jiggle it gently.

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Note The Cisco 3800 ERM slides into the back of the Cisco 3800 system (see Figure 3-1) along plastic guides. When you remove the Cisco 3800 ERM, you may feel some resistance as this backplane connector unseats.

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Figure 3-1: Cisco 3800 ERM Installed in the Cisco 3800 Chassis

Step 6 Insert the new Cisco 3800 ERM card by reversing this procedure.

Step 7 Insert the Cisco 3800 ERM into the card track and push it firmly but gently into the connectors on the backplane.

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Note Correct alignment between connector pins and receptacles is extremely important. First, make sure all pins on the card are straight. Make sure the connector on the card is aligned with the backplane connector. Insert the card gently. It may be necessary to push the card edge slightly to one side to achieve alignment.

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Step 8 Hold the extractor handles in the open position until they make contact and then rotate them to the closed position.

Step 9 Tighten the two captive screws on the faceplate of the ERM just enough to secure the ERM to the card cage.

Connecting the ERM to the Cisco 3800 Combo Card

Figure 3-2 illustrates a Cisco 3800 ERM connected to a Cisco 3800 Combo card.

Figure 3-2: Cisco 3800 ERM Connected to a Cisco 3800 Combo Card

Take the following steps to connect the Cisco 3800 ERM to the Cisco 3800 Combo card:

Step 1 Attach the DB-25 female end of the special serial transition cable to the Cisco 3800 ERM's serial0 port.

Step 2 Attach the DB-25 male end of the serial cable to a Cisco 3800 Combo card serial port.

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Note The serial cable can be attached to any of the serial ports on the Combo card.

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Connecting to LANs

This section describes how to connect the Cisco 3800 ERM to Token Ring and Ethernet LANs.

Connecting to a Token Ring LAN

• Connect the Token Ring port (TR0) to a MAU, as shown in Figure 3-3. To ensure agency compliance with electromagnetic interference (EMI) requirements, ensure that the lobe cable is shielded.

Figure 3-3: Connecting to a Token Ring Media Attachment Unit

Connecting to an Ethernet LAN

To connect your Cisco 3800 ERM to an Ethernet LAN, use the Ethernet 10BaseT (ETH0) port. You can connect the Cisco 3800 ERM to an Ethernet LAN in one of the following ways:

• Use a straight-through 10BaseT cable to connect the 10BaseT port (ETH0) to a 10BaseT hub. (See Figure 3-4.)

• Use a crossover 10BaseT cable to connect the 10BaseT port (ETH0) to a PC network interface card. (See Figure 3-5.)

Figure 3-4: Ethernet Connection to a 10BaseT Hub

Figure 3-5: Ethernet Connection to a PC Network Interface Card

Connecting a Terminal or PC to the ERM Console Port

The ERM includes asynchronous serial console and auxiliary ports. These ports provide administrative access to the ERM either locally (with a console terminal) or remotely (with a modem).

Take the following steps to connect a terminal (an ASCII terminal or a PC running terminal emulation software) to the console port on the ERM:

Step 1 Connect the terminal (see Figure 3-6) using the thin, flat, RJ-45-to-RJ-45 rollover cable (it looks like a telephone cable) and an RJ-45-to-DB-9 or RJ-45-to-DB-25 adapter (labeled "Terminal") included with the ERM. For cable pinouts, see the appendix "Cable Specifications."

Step 2 Configure your terminal or PC terminal emulation software for 9600 baud, 8 data bits, no parity, and 2 stop bits.

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Note The default parameters for the internal console port on the ERM are 9600 baud, 8 data bits, no parity, and 2 stop bits.

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Figure 3-6: Connecting the Cisco 3800 ERM to a Console Terminal

Connecting a Modem to the Auxiliary Port

Take the following steps to connect a modem to the auxiliary port on the Cisco 3800 ERM for remote access:

Step 1 Connect a modem to the auxiliary port using the thin, flat, RJ-45-to-RJ-45 rollover cable (it looks like a telephone cable) with the RJ-45-to-DB-25 adapter (labeled "Modem") included with the ERM. (See Figure 3-7.)

Step 2 Make sure that the modem and the auxiliary port on the ERM are configured for the same transmission speed (38400 baud is typical) and hardware flow control.

Figure 3-7: Connecting a Modem to the Auxiliary Port on the Cisco 3800 ERM

What to Do after Installing the ERM Hardware

When you have installed the Cisco 3800 ERM in the Cisco 3800, turn on the system and proceed to the chapter "Configuring the Cisco 3800 ERM."

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Note Refer to the Cisco IOS configuration guide and command reference publications for additional software configuration information.

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