Compatible Systems 2270R manual WAN Interface Configuration, Basic Configuration Guide

22 Chapter 6 - Basic Configuration Guide

Suggested for DECnet

Setting the parameters above should be adequate for most installations.

WAN Interface Configuration

In order to use a WAN interface, you may first need to set some phys- ical parameters and then set up the link and protocol parameters.

There are differences between the capabilities of the built-in T1 CSU/DSU WAN interface and the RS-232 WAN interface. The T1 interface can only be used with lines which run at fractional or full T1 rates. The RS-232 interface can be run synchronously or asynchro- nously, at rates up to 256Kbps (sync) or 230.4Kbps (async).

Internal T1 CSU/DSU (WAN 0) Physical Communications Settings

Required for Dedicated Line Operation

No changes from the default values are required for standard operation over a full T1. The default values are listed in Appendix A.

Suggested for Dedicated Line Operation

Changing to fractional T1, different coding or framing, etc., may be required for a particular installation.

CV: Use the Physical Configuration: WAN 0 Dialog Box.

TB: Use configure and the T1 Interface WAN 0 section.

RS-232 (WAN 1) Physical Communications Settings

You may need to set the baud rate, sync/async operation, and other physical communications parameters for the WAN interface. These parameters will depend on the line communications device you are using.

Note: Frame Relay is presently supported in the MicroRouter v2270R only via synchronous operation. An external clock signal is generated for Frame Relay.

CV: Use the Physical Configuration: WAN 1 Dialog Box.

TB: Use configure and set the LinkType keyword or other keywords in the RS232 Interface WAN 1 section.