NHRC-10 User Guide
Copyright
1999, 2000, 2001, NHRC LLC. All Rights Reserved.
Page 9
2.6 Delay Connectors
The NHRC-10 supports the NHRC-DAD, a CODEC digital audio delay, to reduce squelch
crashes and fully mute DTMF tones.
Jacks “J3 MAIN DELAY” and “J4 RB DELAY” are provided on the controller to interface
NHRC-DADs.
Jacks J3 and J4 are .100” pin headers.
Note that if the DAD is not used, a shorting jumper must be installed between pins 2 and 3
of each of these jacks otherwise the controller will not pass audio.
J3 MAIN DELAY and J4 RB DELAY Connector Pin-out
Pin #
Use
1 +12
2
Audio to DAD
3
Audio from DAD
4 Ground
See Section 4.4 for information about enabling a connected DAD.