Motorola MTM800 FuG Installationshandbuch Seite 103

Back Connector Pin
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Function
GPIO_3
VBUS_1B
REAR_D -
REAR_D +
GPIO_0
VBUS_2
TX
RX
MIC_REAR_2
GND
GPIO_5
GPI_7
1_WIRE
HANDSET
GND
MIC_REAR_1
GPIO_4
USB_D +
USB_D -
RTS
CTS
Connectors and PIN Assignment | 103
Description
GCAI PIN 2 Mobile
Microphone Port, External
PTT or MIC_REAR_1,
Ground Pin 8 to activate
MIC_REAR_1
GCAI PIN 6: 5V Supply
GCAI PIN 4: USB D -,
GPIO_2 (Shared with the
front MMP)
GCAI PIN 8: USB D +,
GPIO_1 (Shared with the
front MMP)
GCAI PIN 10: GPIO
Second USB 5 V Supply
4-wire RS232 TX
4-wire RS232 RX
2nd Microphone Input
(MIC_REAR_2), Nominal
sensitivity 80mVrms, Bias
voltage 9.3V
Ground
NGCH GPIO1 (CPS
configurable)
4-Level Analogue Input
GCAI PIN 1: Bi-directional
Serial Bus
GCAI PIN 3: Handset
Audio Output
GCAI PIN 5: Ground
External Microphone Input
(MIC_REAR_1),
Connected to GCAI PIN 7,
Nominal sensitivity
80mVrms Bias voltage
9.3V, (Ground PIN 8 to
activate)
GCAI PIN 9: GPIO
Second USB D +
Second USB D -
4-wire RS232 RTS
4-wire RS232 CTS
Default
PTT Input, TX audio from
MIC_REAR_1
Disabled
Disabled
Disabled
Input: GCAI
detection / Select Line
Disabled
Disabled
Disabled
Enabled
Disabled
Parallel to front GCAI
Disabled
Hook Input
Table continued...
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