Cisco T3 Installation Manual

Cisco AS5350 and AS5400 Universal Gateway Card Installation Guide

T3 Dial Feature Card

Table Of Contents

T3 Dial Feature Card
Overview
Online Installation and Removal (OIR) of the T3 DFC
Overview
Removing the T3 DFC
Installing the T3 DFC
Getting Help
Where to Go Next

T3 Dial Feature Card

This chapter describes the T3 dial feature card and includes the following sections:

• Overview

• Online Installation and Removal (OIR) of the T3 DFC

• Getting Help

• Where to Go Next

Overview

The T3 DFC provides physical line termination for a channelized T3 ingress trunk line. It uses an
onboard multiplexer to multiplex 28 channelized T1 lines into a single channelized T3 line. (See

Figure 4-1.)

The T3 DFC provides physical line termination for up to 672 DS0 channels and uses onboard
HDLC controllers to terminate digital (ISDN) calls.

You can use the bantam jacks on the DFC to monitor a T1 line or test any one of the individual
T1 circuits in drop and insert mode.

You can install a T3 DFC in any DFC slot of the universal gateway chassis.

Note The Cisco AS5350 and Cisco AS5400 support only one type of WAN DFC at a time.
Refer to "Troubleshooting," for more information.

Figure 4-1 T3 Dial Feature Card

Online Installation and Removal (OIR) of the T3 DFC

Overview

To remove a DFC without dropping any calls or connections, you will need to take the DFC out
of service by using the busyout command to disable the DFC. The busyout command is
executed on a per DFC basis and will gracefully disable the card by waiting for the active
services to terminate.

If you have active calls on the DFC after executing the busyout command, wait for the calls to
drop. Use the show busyout command to view the status of the termination process.

Caution To avoid erroneous failure messages, remove or insert only one DFC at a time.

When you replace a DFC with a new DFC of the same type in the same slot, the system software
will recognize the new trunk interfaces and bring them up automatically.

If you replace the existing DFC with a new DFC of a different type, you will have to reconfigure
the system. For configuration details, refer to the Cisco AS5350 and Cisco AS5400 Universal
Gateway Software Configuration Guide.

Removing the T3 DFC

To remove the T3 DFC, follow these steps:

Note Following these steps are examples of the output from each command.

Step 1 Determine which slot the DFC is in (See Figure 4-2 and Figure 4-3.) by entering the

show chassis command in privileged EXEC mode:

Router# show chassis slot

Figure 4-2 Slot Numbering on the Cisco AS5350 Chassis

Figure 4-3 Slot Numbering on the Cisco AS5400 Chassis

Step 2 Initialize the software busyout procedure by entering the busyout command:

Router# busyout slot-number

Step 3 Enter the show busyout command to check busyout status for that specific slot: