Motorola MT953C User Manual

Table 59: Mobile Microphone Port Connector
Mobile Micro-
phone Port Pin
Default Functions Alternative
Functions
USB Functions RS232 Func-
tions
NOTICE: The connector enters one of the 5 modes automatically based on the automatic
detection of the connected accessory.
1 1-WIRE 1-WIRE 1-WIRE 1-WIRE 1-WIRE
2 GPIO_3 PTT GP Input or
Output
GP Input or Out-
put
RS-232-RTS
3 SPEAKER SPEAKER SPEAKER SPEAKER SPEAKER
4 GPIO_2 GPIO_2 INPUT GP Input or
Output
DATA - RS-232-RXD
5 GND GND GND GND GND
6 OPT 5V HIGH Impedance OPT 5V VBUS OPT 5V
7 MIC + MIC + MIC + MIC + MIC +
8 GPIO_1 GPIO_1 INPUT GP Input or
Output
DATA + RS-232-TXD
9 GPIO_4 HOOK GP Input or
Output
GP Input or Out-
put
RS-232-CTS
10 GPIO_0 GPIO_0 INPUT GP Input or
Output, PWR
ON
GP Input or Out-
put, PWR ON
GP Input or
Output, PWR
ON
Figure 65: Ethernet Control Head – Rear Connectors
10 9 8 7 6 5 4 3 2 1
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
1
2
Number Description
1 10-Pin Ethernet Connector
2 25-Pin Back Connector
68015000181-LB
Chapter 5: Connectors and PIN Assignment
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Motorola MT953C Specifications

General

Brand	Motorola
Model	MT953C
Category	Two-Way Radio
Language	English