NHRC NHRC-4, Installation And Setup Gude

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NHRC-4 User Guide
2.3
TS-32/TS-64 hookup
Connector J3 is a 6-pin header that allows the easy installation of an optional
Communications Specialists TS-32 or TS-64 for CTCSS decode, encode, CTCSS audio
filtering, and reverse-burst. (Reverse burst is only available with the TS-64.) Wire J3 to the
TS-32/TS-64 as follows:
J3 Connections
JTS64
Pin #
TS-32
Signal
Description
1 +V Power +10 volts to CTCSS board
2 CTCSS decoder input Receiver audio to CTCSS decoder
3 To audio filter input
Receiver audio to audio filter input
(separate lead for TS-64)
4 From audio filter output Filtered audio to controller
5 CTCSS detect
Decode signal from CTCSS decoder
See important warning below!
6 Ground and “Hang Up” Ground
WARNING:
DO NOT APPLY VOLTAGE TO THE CTCSS DETECT INPUT!
This input is pulled low by the CTCSS decoder when CTCSS is NOT PRESENT. It will float high
when CTCSS is detected. Application of voltage to this input will render the controller
inoperative. Damage of this nature is not covered by the NHRC Limited Warranty.
The TS-32 and the TS-64 both have a high-pass filter to remove the CTCSS tone from the
repeated audio. By removing jumper JP1, the controller's audio can be passed through the
audio filter on the TS-32/TS-64.
Note: If the audio filter is not used, then jumper JP1 must be installed in order for audio to
be passed through the controller.
The Communications Specialists CTCSS boards are not supplied by NHRC. Contact
Communications Specialists at 800-854-0547 directly to order these boards.
2.3.1 TS-64 Notes
Consult the NHRC-4 TS-64 Application note for detailed connection instructions.
The TS-64 has a reverse-burst/PTT delay feature that can be used with the NHRC-4 with
some additional wiring. This feature is useful to eliminate the squelch crash received by the
user's radio when the repeater transmitter drops. Note that the user's radios must have
CTCSS decoding enabled for this to work. The PTT signal from the NHRC-4 must be routed
through the TS-64, and the TS-64 encoder output must be wired to the
transmitter’s CTCSS
input.
Copyright
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2001, 2005, NHRC LLC. All Rights Reserved. Page 5