Motorola MTP700 Basic Service Manual page 72

B - 2
Pin Name
1 EXT_SPEAKER+
2 EXT_SPEAKER-
3 OPT_B+
4 EXT_MIC
5 SIDE_OPT2
6. SIDE_OPT1
7. GND
8 RX_DATA
9 TX_DATA
10 CTS
11. RTS
12. SIDE_OPT3
13. VIBRATOR
MTP700/MTP750 Portable Radios / Basic Service Manual
Function
OUT Speaker + (pin 1) and Speaker - (pin 2) are used for the external speaker.
Typical output power is 0.5W for a 20 ohm load.
OUT Speaker + (pin 1) and Speaker - (pin 2) are used for the external speaker.
Typical output power is 0.5W for a 20 ohm load.
OUT With a side accessory attached, this pin provides a typical voltage of 7.5V.
It is current limited at 800mA against short circuit protection.
IN This is the external microphone input. Input impedance is 2 kohm with a
biasing voltage of 2.775V and a typical input level of 8 mVrms.
IN SIDE_OPT1, 2 and 3 selects the various radio operation modes with
different accessories.
IN SIDE_OPT1, 2 and 3 selects the various radio operation modes with
different accessories.
IN/OUT Used as ground.
IN RS-232 input data.
OUT RS-232 output data.
OUT Used as Clear-To-Send in RS-232 communication.
IN Used as Request-To-Send in RS-232 communication.
IN SIDE_OPT1, 2 and 3 selects the various radio operation modes with
different accessories.
OUT This is a logic output to enable the vibrator motor in some accessories.
Table B-1 Side Accessory Connector Pin Functions
CONNECTOR PIN FUNCTIONS
Description