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12. DCP Mode 3 Installation and Administration
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Digital Communications Protocol (DCP) Mode 3 uses 64 Kbps, end-to-end, packet-mode operation for data
transmission. It may be used in the following setups:
• Local Networking: If you are installing a DCP Mode 3 network for two or more colocated (local)
AUDIX systems (the AUDIX systems are connected to the same switch), refer to Chapter 9, DCP
Cabling and Administration. There you install and translate each AUDIX system with the extension
numbers required for each network channel. There are no requirements except extension numbers for a
local AUDIX network.
• Remote Networking: If you are installing a DCP Mode 3 network that requires interlocation facilities,
these facilities are typically T1 Carrier employing common (clear) channel signaling or an Integrated
Systems Digital Network (ISDN) pipe.
This chapter covers administration and testing for DCP Mode 3 AUDIX networking setups.
SWITCH COMPONENT INSTALLATION
See the appropriate switch and/or feature documentation for installing circuit packs and wiring trunks on
the switch.
SWITCH ADMINISTRATION
See the appropriate switch and/or feature documentation for ISDN administration. For DS1 administration
of either local or remote AUDIX networking setups, see the following sections.
System 75, Generic 1, and Generic 3 Administration
The DS1 circuit pack uses the Common Channel Signaling mode to provide 23 trunks for data transmission
and one channel for signaling. The DS1 trunk group must be assigned for AV/D.
At this time, use standard AV/D DS1 administration. Any specific assignments that become necessary for
AUDIX networking will be covered in future issues of this document.
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