User's Manual
![](/manual/hm-electronics/1404/user-s-manual-english/images/img-46.png)
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J18 – Line In/Out
J18,1 Line out
J18,2 Ground
J18,3 Line in
J18,4 Ground
J18,5 Not used
J22 – Base Station Interface Connector
in Primary Base Station
J22,1 Vehicle detect input
J22,2 Vehicle detect output
J22,3 /A2 Talk
J22,4 /B2 Talk
J22,5 Car 2
J22,6 Ground
J22,7 TX Audio 2
J22,8 Ground
J22,9 RX Audio A2
J22,10 RX Audio B2 or B1 + B2
J25 – Remote Switch and
Vehicle Detect 2 Interface
J25,1 Speed Team Remote Common
J25,2 +5VDC
J25,3 Ground
J25,4 Not used
J25,5 Record Remote
J25,6 Ground
J25,7 Not used
J25,8 Relay 2 Normally open
J25,9 Relay 2 Common
J25,10 Relay 2 Normally Closed
J26 – Base Station Interface Connector
in Secondary Base Station
J26,1 Vehicle detect output
J26,2 Vehicle detect input
J26,3 /A2 Talk
J26,4 /B2 Talk
J26,5 Car 2
J26,6 Ground
J26,7 TX Audio 2
J26,8 Ground
J26,9 RX Audio A2
J26,10 RX Audio B2 or B1 + B2
J29 – AC Power
J29,1 16VAC power input
J29,2 16VAC power input
J30 – Menu Board Interface
(Without Switcher Board)
J30,1 Microphone 1
J30,2 Microphone 2
J30,3 Ground
J30,4 +12VDC
J30,5 Negative vehicle detect input
J30,6 Aux Negative vehicle detect input
J30,7 Outside speaker –
J30,8 Outside speaker +
J33 –
J33,1 TX Audio 2
J33,2 +12VDC
J33,3 /A2 Talk
J33,4 /B2 Talk
J33,5 Alert
J33,6 Aux Negative Detect
J33,7 Ground
J33,8 RX Audio B2
JP1 – ClearSound Bypass Jumper
JP1,1 Audio channel 1 input
JP1,2 Inbound Audio
JP1,3 Audio channel 1 output
JP2 – ClearSound Bypass Jumper
JP2,1 Audio channel 2 input
JP2,2 Outbound Audio
JP2,3 Audio channel 2 output
10.2 Transceiver Circuit Board
J2 –
J2,1 +5VDC
J2,2 Ground
J2,3 NC
J2,4 Ground
J2,5 NC
J2,6 /A1 Talk
J2,7 Tx audio 1
J2,8 /B1 Talk
J2,9 Ground
J2,10 Car 1