Avaya 555-231-743 manual Additional Parts and Test Equipment

GuestWorks and DEFINITY ECS Release 9	Issue 1
Technician Handbook for Hospitality Installations 555-231-743	November 2000
Installing the System
Additional Parts and Test Equipment	5

Additional Parts and Test Equipment

Other than the tools and test equipment noted in the installation manuals, you should also have the following items available on site:

■RS232 mini-tester (comcode 407515139)

NOTE:

The mini-tester shows positive voltage with a green LED and negative voltage with a red LED. This can be verified by connecting the mini-tester to a printer’s EIA port, adding power to the printer, and then putting the printer on-line. The Data Terminal Ready (DTR) lamp should then light with a positive (green) voltage. You may already have your own mini-tester that shows positive voltage as red and negative voltage as green. If this is true at your installation, the mini-tester result diagrams shown in this handbook must be read from an “opposite” perspective; that is, if the book shows that DTR should be green, and you have a mini-tester that operates in an “opposite” mode, your mini-tester will show DTR being red. This change in perspective should be true for all data leads.

!CAUTION:

After using a mini-tester to check data leads, you MUST remove the mini-tester from the connection. DO NOT leave the mini- tester in-line during actual operation.

■RS232 gender changers and M25A or M25B RS232 cables

■Analog line used to place test calls.

See “Appendix A — Parts List” on page 242 for a list of the parts used for this installation. Part numbers are provided in case replacements must be ordered.