Service manual

Installation: Electrical Connections 2-21
Table 2-5. J7 Auxiliary System Connector Pins
Pin #
Pin
Assignment
Input/
Output
To/From Signal Characteristics
1 Tx Audio I J3-B30, J4-A17 Transmit Audio – Nominal input level is 80 mVrms for 60%
deviation with scaling factor set to 100%. 600 Ω input impedance.
2 GPI_1 I/O J3-C32, J4-A16 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
3 Aux Rx Audio O J3-A19 Auxiliary Receiver Audio – Nominal output level is 330 mVrms
with a 60% deviation receive signal. 1000 Ω output impedance
4 GPIO_2 I/O J3-B32, J4-C18 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
5 GPIO_10 I/O J3-A17, J4-B17 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
6 GPIO_9 I/O J3-A13, J4-A4 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
7 Rx Audio O J3-A30, J4-C16 Auxiliary Receiver Audio – Nominal output level is 330 mVrms
with a 60% deviation receive signal. 1000 Ω output impedance.
8 GPIO_6 I/O J3-A32, J4-B19 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
9 GND
10 GPIO_7 I/O J3-C30, J4-A20 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
11 GPI_1* I/O J3-C32, J4-A16 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
12 GPIO_7 I/O J3-C30, J4-A20 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC
13 Tx Data I J3-B29, J4-A19 Transmit Data/PL/DPL – Nominal input level is 80 mVrms for
20% deviation with scaling factor set to 100%. 600 Ω input
impedance.
14 Reserved
15 GPIO_3 I/O J3-B31, J4-A18 Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10K pull-up to 5 V
Input Logic Low: 0 to 0.8 VDC
Input Logic High: 3.0 to 14 VDC