Station Maintenance Connections; Table 12. Station Maintenance Connections On The Scm - Motorola MTR2000 Installation And Operation Manual

Installation

Station Maintenance Connections

42
Table 12 provides a description of the maintenance connections located on
the front of the Station Control Module.
Table 12. Station Maintenance Connections on the SCM
Connector
Name
5/10MHz External
External Reference signal
Reference Signal for internal
(J5603) system clock
Service Speaker Output to Power
(P5601) Voice speaker
RSS (P5600) Serial Port
Microphone Local
(P5602) Microphone
Input
Function
5MHz or 10MHz external
reference may be used.
Select desired frequency
through RSS. High impedance
input. Minimum level is 1Vpp
for either type of input.
Maximum level should not
exceed 3Vpp.
Adjustable between 0 to
500mV across 1Kohm @60%
system deviation. Audio signal
appears between pins 3 and 4
on the connector. Must use
speaker type HSN1000 via
adapter cable Part.No.
0185180U01.
For connection to serial port of
a computer via cable Part No.
3082056X02. The Radio Service
Software (RSS) application is
run on the computer.
Use local microphone type
GMN6147 or equivalent.
Modulation sensitivity for 60%
system deviation is typically
300mV. This microphone
should be equipped with 3
control buttons for speaker
volume control, Rx. monitor
and Intercom control functions.
Details
68P81096E37-N
06/28/05