AT&T 585-300-903 manual TN539 Acce

Introduction 1-5

_______________________________________________________________________________________

_

TN539 ACCE

This circuit pack provides four DCP channels and two RS-232 channels. It will work with R1V5 and later software. The Vintage 7 TN539 permits six simultaneously active ports. Vintage 4 and earlier of the TN539 permits four simultaneously active ports. This circuit pack is no longer orderable (comcode

103281473). It provides all the functionality of the TN366 or TN366B with the following additions:

∙Multi-stage dialing

∙DCP Mode 1 (56 Kbps) interface

∙RS-232 interface

NOTE

Customers who implemented 56 Kbps networking using TN539 ACCE boards may wish to upgrade to the TN539B ACCE in order to take advantage of the performance improvements and loop-around testing capabilities offered on this board by R1V7 software.

TN539B ACCE

This pack replaces the TN366, TN366B, or TN539 circuit pack (comcode 106757768). It provides all the functionality of the previous networking boards as well as 56 and 64 Kbps loopback testing capabilities.

All new systems ship with a TN539B ACCE. In addition, you may wish to upgrade an earlier board to a TN539B ACCE for the following reasons:

∙You have a TN366 or TN366B ACC and you wish to use the two RS-232 ports available on the TN539B.

∙You have a TN366 or TN366B ACC and you wish to obtain the additional activity status information available on the maintenance : network form in R1V7 (for example, if you are using the R1V7 network turnaround feature).

∙You have a TN366 or TN366B ACC or a TN539 ACCE and you wish to upgrade to a TN539B ACCE for performance reasons. A TN539B is required at both the sending and receiving machine in order to achieve increased performance.

∙You have a TN539 ACCE running DCP Mode 1 (56 Kbps) connections and you wish to replace it with the TN539B in order to take advantage of the AUDIX R1V7 loop-around testing capabilities and possible performance improvements (see the previous item).

All TN539B ACCE orders (new or upgrade) include two H600-330, Group 1 null-modem adapters and one H600-331, Group 2 cable. See the System Description manual (585-305-201) for ordering codes.