User's Manual

Accessory Connector Pin Functions
PIN # PIN NAME DIRECTION DESCRIPTION Notes
1
RS232_RX OUT RS232 Signal 3V Max
2
RS232_TX IN RS232 Signal 3V Max
3
RS232_DTR IN RS232 Signal 3V Max
4
RS232_DCD OUT RS232 Signal 3V Max
5
RS232_GND IN Signal Ground
6
RS232_RTS IN RS232 Signal 3V Max
7
RS232_CTS OUT RS232 Signal 3V Max
8
RS232_DSR OUT RS232 Signal 3V Max
9
RS232_RI OUT RS232 Signal 3V Max
10
EXT_MIC IN Audio input to iO1500R FUTURE USE
11
AUDIO_COMMON IN Analog Ground FUTURE USE
12
AUDIO_OUT OUT iO1500R Audio Out FUTURE USE
13
OPT_SELECT_1 I/O (22K pull-up) iO1500R configuration Control Signal
14
OPT_SELECT_2 I/O (22K pull-up) iO1500R configuration Control Signal
15
MUX_CNTL IN (69K pull-down) Logic “0” (Mfgr.use) Control Signal
16
OPTION_3V OUT Regulated 3.0V Output
17
OEM ON-OFF IN (15K pull-down) Power On/Off External On/Off
3.6V±5% Max
18
MOD IN (22K pull-down) Programming signal 3V Max
19
BAT_VCC IN 3.6V iO1500R Power
20
BAT_VCC IN 3.6V iO1500R Power
21
BAT_VCC IN 3.6V iO1500R Power
22
BAT_VCC IN 3.6V iO1500R Power
23
BAT_VCC IN 3.6V iO1500R Power
24
RED_LED OUT Out-Of-Rrange indication 3V±2.5%
25
GREEN_LED OUT In-Range indication 3V±2.5%
26
BAT_GND IN Ground
27
BAT_GND IN Ground
28
BAT_GND IN Ground
29
BAT_GND IN Ground
30
BAT_GND IN Ground
20/5/03 page 10 of 37