Motorola MTR3000 Basic Service Manual

MTR3000 Backplane: Description 6-25
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
16 GND – – –
17 GND – – –
18 GND – – –
19 GND – – –
20 Fused 14.2 VDC – – 1 Amp max
21 GPIO_8 I/O J3-C29, J4-A12 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
22 Emph Tx Audio I J3-A29, J4-B12 Emphasized Transmit Audio – Nominal input level is 80
mVrms for 60% deviation with scaling factor set to 100%.
600 Ω input impedance.
23 GPI_4 I/O J3-A31, J4-A10 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
24 GPIO_5 I/O J3-C31, J4-B10 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
25 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
Note (*) Indicates an active low signal
Table 6-22 J7 Aux Connector (Continued)
Pin
#
Pin Assignment
Input/
Output
To/From Signal Characteristics

Motorola MTR3000 Specifications

General

Brand	Motorola
Model	MTR3000
Category	Accessories
Language	English