Motorola MTR3000 Basic Service Manual

6-24 MTR3000 Backplane: Description
Table 6-21 J6 Terminal Block Stacking Connector
Pin # Pin Assignment
1 Line 1-
2 Line 1+
3 Line 2-
4 Line 2+
Table 6-22 J7 Aux Connector
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
330mVrms 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

Motorola MTR3000 Specifications

General

Brand	Motorola
Model	MTR3000
Category	Accessories
Language	English