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NHRC-10 User Guide
Page 6
Copyright
1999, 2000, 2001 NHRC LLC. All Rights Reserved.
2.3 Repeater Connector
The main repeater is connected to the controller through the “J1 REPEATER” connector.
J1 is a Female DB9 Connector.
A Male DB9 Connector is included with the controller.
Male DB-9 Connector
J1 REPEATER Connector Pin-out
Pin #
Use
Comments
1 Ground
2
CTCSS Decode
Active High
3 PTT
Active
Low
4
Transmit Audio
From Controller
5
Receiver Audio
To Controller
6
CTCSS Encode
Future Option
7 CAS
Active
High
8 Ground
9
Fan Control
Active Low
⇒
⇒
⇒
⇒
Note:
The Fan Control output can be configured to either serve as a timed fan control
switch or as a digital output for other control applications. See Section 4.4 for information on
the operation of the fan control output.