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7. Mixtures of RS-232 and DCP Networks
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This chapter presents supported configurations using RS-232 and DCP connections on the same AUDIX
system. If your customer develops their own method, contact the Business Communications Systems
Design Center (BCSDC) to make certain it is feasible. Look to the previous chapters for the requirements
of the following networks.
CONSIDERATIONS
An AUDIX network can be implemented using both RS-232 connections and Digital Communications
Protocol (DCP) connections. A single AUDIX system can use both types, or an RS-232 connection can be
used at one AUDIX system to talk to another AUDIX system that uses DCP connections.
NOTE
System 75, DEFINITY Generic 1 and Generic 3, and MERLIN II can be set up to access only
two of the four DCP channels. This is a limitation regardless of the AUDIX software used
and the networking circuit pack provided. See Chapter 3, Switched EIA RS-232 Networks for
information on expanding this limitation to four channels.
RS-232 AND DCP AT THE SAME AUDIX SYSTEM
Figure 7-1, RS-232 and DCP at the Same AUDIX, shows how the two AUDIX RS-232 channels and the
four AUDIX DCP channels are used on the same AUDIX system. This is particularly useful for a System
75, System 75 XE, Generic 1, Generic 3, or MERLIN II, where only two of the four AUDIX DCP channels
can be accessed. In this example, the RS-232 channels are used for communication between the two
colocated systems at the top of the figure. The DCP channels are used for these systems to communicate
with the off-site system at the bottom of the figure. In a larger network, where several AUDIX systems to
be networked are off-site, it might be advantageous to make the RS-232 channels switched connections as
in Figure 7-2, High-Speed Switched RS-232 and DCP AUDIX Connections. This provides a greater degree
of access to these systems.
Figure 7-3 shows the DCP channels of the colocated AUDIX systems being used for communication with
an off-site AUDIX system. One of the RS-232 channels is used for communication between the colocated
systems and the other is used to connect to a PC. The PC could be used to run the Call Detail Recording
software package.
7-1