Connecting to external interfaces
Issue 3.3 February 2003 39
Connecting to external interfaces
A variety of external I/O components and interfaces may be required depending on the
configuration chosen by the customer. This section describes some of the most likely
configurations.
Refer to the following subsections as appropriate for your installation:
●Connecting the switch link on page 39
●Connecting the serial port expander boxon page 40
●Connecting external SCSI devices on page 41
Procedures for connecting a network hub unit and an NTS are found in Avaya CMS
Terminals, Printers, and Modems, 585-215-874.

Connecting the switch link

There are two ways to connect the CMS computer to a switch:
●using TCP/IP over a local area network (LAN)
●using X.25 protocol over a hard-wired or switched link
Note:
Note: Some CMS loads do not support the X.25 protocol. Contact the National
Customer Care Center or consult with your product distributor or
representative to verify if the X.25 protocol is supported on your CMS
system.
One CMS computer can collect data from up to eight different switches. To the CMS
computer, each switch represents one ACD. Depending on the release of the switch and
the release of the CMS software, you can have all switches connected using TCP/IP, all
switches connected using X.25 protocol, or some combination of the two protocols.
For detailed information about how to connect and administer the switch link, see Avaya
CMS Switch Connections, Administration, and Troubleshooting, 585-215-876.