Chapter 5: Setting Up WAN Firmware and Hardware

Option Description

Facility Data Facility Data Link protocols are used to exchange Link Protocol(s) messages between the board and the remote end of the

network. These messages are issued by the Telco to put the board in loopback mode for testing when problems occur. They are also used to transmit statistics about physical transmission errors on the line.

Two protocols are available for the facility data link: ANSI-T1-403 and ATT-54016. They are compatible with each other.

Use the protocol(s) indicated by your Telco. If this information is unavailable, select both protocols.

Setting Up Digital Modem Port Properties

If the 5536 Digital Modem RAS Support driver is installed on the machine, you can use the WAN Adapters Setup Utility to change the board’s digital modem port properties. These properties identify the speech coding law to use with modems in your geographic location.

To set up digital modem port properties:

1.Select the digital modem port (x Digital Modems where x is the number of modems on the board) in the

5536 PRI RAS Communications Controller Users Guide

85