ZETRON 4000 Series, Installation Manual

Page: 152 / 418

Wireless Interface Options
152 025-9533Y
Harris Wireless Interface Module
The Harris Wireless Interface Module provides level conversion, power-on circuitry, and
4-wire audio from the Harris Dual Channel Wireless Control Card to the radio.
Connection from the interface module 10-pin connector to the radio 44-pin connector is
made with the cable supplied with the interface module (Zetron P/N 709-8038). The
connections are listed in Table 62 .
Table 62: Interface Module Connections
Set the jumpers inside the Wireless Interface Module as follows:
• JP 1, 2, 3, 6, 7 = A
• JP 4, 5 = B
Adjusting Levels
See Audio Level Adjustments on page 177.
Punchdown Block Connections
Connection to each channel of the Harris M-Series Dual Channel Wireless Control Card in
the common control equipment rack is made by way of the punchdown block.
Caution! Do not extend the length of the serial cables. These cables as
supplied are already at their maximum length allowed in order
to reliably support the baud rate of the data transmission.
!
WIM Connector P1 DB-44 (Radio)
PTT OUT 1 18 Aux IN1 PTT
CTS IN 2
RXD IN 3
TXD OUT 4
RX Audio 5 14 Audio OUT
TX Audio 6 27 Audio IN
+5 OUT 7
Audio GND 8 6 Audio GND
Digital GND 9 7 Chassis GND
+12 INPUT 10 28 SWA+