Clear-Com TW-47 - Manual (Page 10)

T W - 4 7 T W O - W A Y R A D I O I N T E R F A C E 1 - 2
• Separate transmit and receive level control adjustment.
DESCRIPTION OF THE TW-47
The TW-47 two-way radio interface is a one-channel unit that is
used to connect a two-way radio (commonly known as a walkie-
talkie) to any channel in a party-line intercom system. When used
with remote radios, the radio connected to the TW-47 acts as if it
were the base station for a wireless remote system. The illustration
in Figure 1-1 shows a typical intercom setup.
Figure 1-1: Typical Intercom Setup Connecting the TW-47 to the
Intercom System
The TW-47 is connected to the intercom system by a 2-
conductor, shielded cable plugged into its female XLR jack,
labeled “intercom.” The pin-out connectors on the XLR are
configured as follows:
Pin 1 - Shield
Pin 2 - Power/TW Channel A
Pin 3 - Intercom audio/TW Channel B
This is the standard wiring for a Clear-Com intercom system.
With a different setting of the internal switches, the TW-47 will
also accommodate RTS® and compatible systems.