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Installing the Cisco Multiport Serial Routers

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Table Of Contents

Installing the Cisco Multiport Serial Routers

Required Tools and Parts

Setting Up the Chassis

Rack-Mounting the Chassis

Attaching the Brackets

Installing in a Rack

Wall-Mounting the Chassis

Connecting the DC Power Supply

DC Power Specifications

Wiring the DC Power Supply

Connecting to the Network

Connecting the Terminal and Modem

Connecting to the Console Port

Connecting a Modem to the Auxiliary Port

What to Do after Installing the Multiport Serial Router


Installing the Cisco Multiport Serial Routers

This chapter guides you through the installation of the Cisco 2500 series multiport serial routers and includes the following sections:

•Required Tools and Parts

•Setting Up the Chassis

•Connecting the DC Power Supply

•Connecting to the Network

•Connecting the Terminal and Modem

•What to Do after Installing the Multiport Serial Router

Required Tools and Parts

You need the following tools and parts to install the multiport serial routers:

•Flat-blade screwdrivers: small, 3/16-inch (0.476 cm), and medium, 1/4-inch (0.625 cm)

•ESD-preventive wrist strap

•A thread-forming screw (which is not included), to attach a ground wire to the protective grounding terminal on the rear panel of the chassis

•Rack-mount brackets (used for rack-mounting or wall-mounting) and hardware (optional), including screws you must provide for rack-mounting and wall-mounting

•An interface cable for each interface you will connect

In addition, you might need the following external equipment:

•Channel service unit/digital service unit (CSU/DSU) for the serial interfaces.

•Ethernet transceiver or Token Ring media attachment unit (MAU).

•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 the Terminal and Modem" later in this chapter for the procedure to connect a terminal.

•Modem for remote system access (optional).

Setting Up the Chassis

You can set the chassis on a desktop, install it in a rack, or mount it on a wall or other flat surface. You should use the procedure that best fits the needs of your network.

Caution   
Do not place anything on top of the multiport serial router that weighs in excess of 10 pounds (4.5 kg). Excessive weight on top could damage the chassis.

Rack-Mounting the Chassis

This section describes the procedures for rack-mounting the chassis. Your chassis ships with a bracket for use with a 19-inch rack or, if specified in your order, an optional larger bracket for use with a 24-inch rack. The brackets are shown in .

Caution   
Do not remove the rubber feet from the bottom of the chassis when installing it in a rack. Removing the rubber feet will result in inadequate cooling of the multiport serial router, which could lead a hardware failure.

Figure 3-1 Identifying the Brackets

Attaching the Brackets

To install the chassis in a rack with the front panel forward, attach the brackets as shown in or Figure 3-3.

Figure 3-2 Bracket Installation for 19-inch Rack—Front Panel Forward

Figure 3-3 Bracket Installation for 24-inch Rack—Front Panel Forward

To install the chassis in a rack with the rear panel forward, attach the brackets as shown in Figure 3-4 or Figure 3-5.

Figure 3-4 Bracket Installation for 19-inch Rack—Rear Panel Forward

Figure 3-5 Bracket Installation for 24-inch Rack—Rear Panel Forward

To install the chassis in a center-mount telco rack, attach the brackets as shown in Figure 3-6 or Figure 3-7.

Figure 3-6 Bracket Installation for Telco 19-inch Rack—Rear Panel Forward

Figure 3-7 Bracket Installation for Telco 24-inch Rack—Rear Panel Forward

Installing in a Rack

After the brackets are secured to the chassis, you can rack-mount the chassis. Using the screws you provide, attach the chassis to the rack as shown in or Figure 3-9.

Figure 3-8 Attaching the Chassis to the 19-Inch Rack—Rear Panel Forward

Figure 3-9 Attaching the Chassis to the 24-Inch Rack—Rear Panel Forward

Wall-Mounting the Chassis

Use the smaller brackets (for use with a 19-inch rack), to wall-mount the chassis. The smaller brackets will provide the most stable position for the chassis.

Take the following steps to wall-mount the chassis:

Step 1 Attach the brackets as shown in Figure 3-10.

Figure 3-10 Attaching the Wall-Mount Brackets

Step 2 Attach the chassis to the wall as shown in Figure 3-11, using screws and anchors that you provide. We recommend the following:

•For the best support of the chassis and cables, attach the brackets so that the screws align with a vertical wall stud.

•For the best ventilation of the chassis, mount the chassis with the power supply and fan at the top.

Caution   
To prevent the chassis from pulling away from the wall when cables are attached, align the brackets and screws with a vertical wall stud. (See Figure 3-11.) To ensure adequate ventilation, make sure there is clearance between the multiport serial router and the wall.

Figure 3-11 Wall-Mounting the Chassis

Connecting the DC Power Supply

The multiport serial router has an optional direct current (DC) power supply. This section describes the DC power supply specifications and wiring.

DC Power Specifications

The DC power supply is intended for use in DC operating environments. lists the power supply specifications.

Table 3-1 DC Power Supply Specifications

Description
Design Specification

Power

40W, -40 to -72 VDC

Wire gauge for power connections

14 AWG1

1 AWG = American wire gauge.


Wiring the DC Power Supply

If you ordered a multiport serial router with a DC power supply, follow the directions in this section for proper wiring.

Warning   

Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the off position, and tape the switch handle of the circuit breaker in the off position. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.")

Warning   

This unit is intended for installation in restricted access areas. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.")

Note   This product is intended for installation in areas with restricted access and is approved for use with copper conductors only. The installation must comply with all applicable codes.

shows the DC power supply terminal block. Take the following steps to wire the terminal block:

Step 1 Attach the appropriate lugs at the wire end of the power supply cord.

Step 2 Wire the DC power supply to the terminal block as shown in .

Warning   

The illustration shows the DC power supply terminal block. Wire the DC power supply using the appropriate lugs at the wiring end, as illustrated. The proper wiring sequence is ground to ground, positive to positive (line to L), and negative to negative (neutral to N). Note that the ground wire should always be connected first and disconnected last. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.")

Warning   

When stranded wiring is required, use approved wiring terminations, such as closed-loop or spade-type with upturned lugs. These terminations should be the appropriate size for the wires and should clamp both the insulation and conductor. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.")

Caution   
Do not overtorque the terminal block captive thumbscrew or terminal block contact screws. The recommended torque is 8.2 
±
0.4 inch-lb.

Warning   

After wiring the DC power supply, remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the on position. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.")

Figure 3-12 DC Power Supply Connections

Connecting to the Network

Take the following steps to connect a multiport serial router to your network(s):

Step 1 Connect the Ethernet port to a transceiver as shown in .

Note   If your Ethernet connection requires jackscrews, remove the slide-latch assembly from the AUI connector and attach the jackscrews provided.

Figure 3-13 Connecting Ethernet Transition Cables

Step 2 Connect the Token Ring port (DB-9) to a MAU. (See .) To ensure agency compliance with electromagnetic interference (EMI), make sure the cable is shielded.

You can also connect the Token Ring port (RJ-45) to a Token Ring hub. If the transmission rate of your Token Ring network is 4 Mbps, use a UTP cable to connect the Token Ring port (RJ-45) to a Token Ring hub. If the transmission rate of your Token Ring network is 16 Mbps, use a STP cable to connect the Token Ring port (RJ-45) to a Token Ring hub.

Figure 3-14 Connecting Token Ring Cables

Step 3 Connect the synchronous serial ports to the modem or CSU/DSU, as shown in . Make certain that you connect the 60-pin serial port connector as shown.

Figure 3-15 Connecting Synchronous Serial Cables

Step 4 Connect one end of the asynchronous/synchronous cable to one of the asynchronous/synchronous ports (labeled Serial n (A/S)), and then connect the other end to a CSU/DSU or asynchronous device. (See .)

For asynchronous/synchronous port pinouts, refer to the appendix "Cisco Multiport Router Cable Specifications."

Figure 3-16 Connecting Asynchronous/Synchronous Serial Cables

Step 5 Using an M 3.5 thread-forming screw (not included), attach a ground wire to the protective grounding terminal on the rear panel of the chassis, as required by your installation.

Step 6 Connect the power cable between the multiport serial router and the AC source.

Connecting the Terminal and Modem

The terminal is used to provide local administrative access to the multiport serial router. Connect the terminal to the console port. The auxiliary port can be used with a terminal or a modem for remote access.

Connecting to the Console Port

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

Step 1 Connect the terminal to the console port using an RJ-45 roll-over cable and an RJ-45-to-DB-25 adapter. If you are using the cable provided by Cisco, the adapter is labeled Terminal. To connect to a PC, use the RJ-45 roll-over cable and the RJ-45 to DB-9 adapter. (See .)

Figure 3-17 Connecting the Terminal

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

Connecting a Modem to the Auxiliary Port

Take the following steps to connect a modem to the console port on a multiport serial router:

Step 1 Connect a modem to the auxiliary port using an RJ-45 roll-over cable with an RJ-45-to-DB-25 adapter. The adapter provided by Cisco is labeled Modem. (See .)

Figure 3-18 Connecting a Modem to the Auxiliary Port

Step 2 Make sure that the modem and the auxiliary port are configured for the same transmission speed (38400 baud is normal) and hardware flow control with standard Data Carrier Detect (DCD) and Data Terminal Ready (DTR) operations.

What to Do after Installing the Multiport Serial Router

When you have installed the multiport serial router, the system is ready to be powered on and configured. For information about software configuration, refer to the chapter "Configuring the Cisco Multiport Serial Routers."