Motorola MTM800 FuG Installationshandbuch Seite 103

Pin Function
6 REAR_D -
7 REAR_D +
8 GPIO_0
9 VBUS_2
10 TX
11 RX
12 MIC_REAR_2
13 GND
14 GPIO_5
15 GPI_7
16 1_WIRE
17 HANDSET
18 GND
19 MIC_REAR_1
20 GPIO_4
21 USB_D +
22 USB_D -
23 RTS
24 CTS
25 PWR_ON
Send Feedback
Description
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
Second Microphone Input (MIC_REAR_2),
Nominal sensitivity 80 mV rms, Bias voltage
9.3 V
Ground
NGCH GPIO1 (CPS configurable)
4-Level Analog 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 sensitivi-
ty 80mVrms Bias voltage 9.3 V (Ground PIN
8 to activate)
GCAI PIN 9: GPIO
Second USB D +
Second USB D -
4-wire RS232 RTS
4-wire RS232 CTS
Enhanced Control Head Power On Input
Chapter 5: Connectors and PIN Assignment
Default
Disabled
Disabled
Input: GCAI detec-
tion / Select Line
Disabled
Disabled
Disabled
Enabled
Disabled
Parallel to front GCAI
Disabled
Hook Input
68015000553-KC
103