TN652 CI-RC-4M-G2 Multiple Link Controller
MT-4 Radio Systems
TECHNICAL NOTES
Page 5 of 10
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TN652, REV 3-0-0, © Nov 2018
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Analog Audio Bridging Circuit:
The CI-RC-4M-G2 controller is equipped with a 4 way analog audio bridge. This audio bridge allows the user to
interconnect RF modules using an analog audio interface similar to the AC-3E and BC-4E products. It allows the
user to interconnect up to four RF modules modules as well as an auxiliary audio input and output.
On the multi-link controller there is an audio adjustment pot for each audio path available. The block diagram on the
next page (see Figure 6) shows the audio routing and audio pot adjustments.
To enable a specifi c audio path, the appropriate audio jumper must be removed. For the specifi c audio jumper
required for enabling the appropriate audio path, refer to the jumper table below:
JU53 RXA to TXA Audio Disable JU63 RXC to TXA Audio Disable
JU59 RXA to TXB Audio Disable JU70 RXC to TXB Audio Disable
JU54 RXA to TXC Audio Disable JU64 RXC to TXC Audio Disable
JU58 RXA to TXD Audio Disable JU68 RXC to TXD Audio Disable
JU52 RXB to TXA Audio Disable JU65 RXD to TXA Audio Disable
JU57 RXB to TXB Audio Disable JU71 RXD to TXB Audio Disable
JU51 RXB to TXC Audio Disable JU66 RXD to TXC Audio Disable
JU56 RXB to TXD Audio Disable JU69 RXD to TXD Audio Disable
JU55 RXA to Aux Audio O/P Disable
JU50 RXB to Aux Audio O/P Disable
JU62 RXC to Aux Audio O/P Disable
JU67 RXD to Aux Audio O/P Disable
To enable COR-PTT routing of the signal, the following jumpers must be installed:
JU23A COR A to PTT A Enable JU25A COR A to PTT C Enable
JU23B COR B to PTT A Enable JU25B COR B to PTT C Enable
JU23C COR C to PTT A Enable JU25C COR C to PTT C Enable
JU23D COR D to PTT A Enable JU25D COR D to PTT C Enable
JU24A COR A to PTT B Enable JU26A COR A to PTT D Enable
JU24B COR B to PTT B Enable JU26B COR B to PTT D Enable
JU24C COR C to PTT B Enable JU26C COR C to PTT D Enable
JU24D COR D to PTT B Enable JU26D COR D to PTT D Enable
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