NHRC NHRC-4/M2, Инструкция по установке и настройке

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NHRC-4/M2 User Guide
Page 2 Copyright

2001, 2005, NHRC LLC. All Rights Reserved.
1. Introduction
This manual describes how to install and set up the NHRC-4/M2 repeater controller. This manual
should be used in conjunction with the NHRC-4 Operating Manual, which describes the
programming and operation of the controller.
2. Installation
This section of the User Guide describes the electrical interfaces used to connect the
controller to:
•
Power and primary repeater (the GE MASTR II),
•
Link/Remote Base radio
•
Communications Specialists TS-64 CTCSS Encoder/Decoder
•
Optional NHRC-DAD digital audio delay board(s).
It is intended for the repeater operator to use in the planning and installation of the NHRC-
4/M2 Repeater Controller into a repeater system.
The controller is designed to be installed inside of a GE MASTR II mobile or station. The
controller is installed onto the connectors that GE intended for the “channel guard” board.
CTCSS is supported with an optional CommSpec TS-64. All of the controller’s signals, for
the primary and secondary radios, as well as the digital output are presented at either J908 or
J909.
2.1 Primary Radio Port Connections
The NHRC-4/M2 operates using the MASTR II as the "primary" radio. The primary radio
must operate in full-duplex mode. If your MASTR II is not already converted for full-duplex
operation, consult the NHRC WWW MASTR II Info-site Full Duplex Conversion for
duplexing information.
There are two options for interfacing the CAS and TX audio to the controller. These signals
do not normally appear on the P908 plug on the system board of the MASTR II. You can
either use an interface cable, or you can modify the
2.1.1 Option 1: Use an interface cable
Transmit audio and CAS appear on the controller at J1, a 3-pin header. Wire an interface
cable as shown in the table below:
J1 Connections
J1
Pin #
MASTR II
Signal
1
MIC HI
J902 #6
2
CAS
J904 #9
3
MIC LO
J902 #5