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Evaluation Board J1 Connector Pin Functions
PIN #
PIN NAME
RS232_TX
30
RS232_RX
29
28
RS232_DTR
27
RS232_DCD
26
RS232_GND
RS232_RTS
25
RS232_CTS
24
RS232_DSR
23
22
RS232_RI
21
EXT_MIC
20
AUDIO_COMMON
19
AUDIO_OUT
OPT_SELECT_1
18
17
OPT_SELECT_2
16
MUX_CNTL
15
OPTION_3V
OEM ON-OFF
14
MOD
13
BAT_VCC
12
11
BAT_VCC
10
BAT_VCC
9
BAT_VCC
8
BAT_VCC
RED_LED
7
GREEN_LED
6
5
BAT_GND
4
BAT_GND
3
BAT_GND
BAT_GND
2
BAT_GND
1
DIRECTION
DESCRIPTION
OUT
RS232 Signal
IN
RS232 Signal
IN
RS232 Signal
OUT
RS232 Signal
IN
Signal Ground
IN
RS232 Signal
OUT
RS232 Signal
OUT
RS232 Signal
OUT
RS232 Signal
IN
Audio input to iO1500R
IN
Analog Ground
OUT
iO1500R Audio Out
I/O (22K pull-up)
iO1500R configuration
I/O (22K pull-up)
iO1500R configuration
IN (69K pull-down)
Logic "0" (Mfgr.use)
OUT
Regulated 3.0V Output
IN (15K pull-down)
Power On/Off
IN (22K pull-down)
Programming signal
IN
3.6V iO1500R Power
IN
3.6V iO1500R Power
IN
3.6V iO1500R Power
IN
3.6V iO1500R Power
IN
3.6V iO1500R Power
OUT
Out-Of-Range indication
OUT
In-Range indication
IN
Ground
IN
Ground
IN
Ground
IN
Ground
IN
Ground
Page 7 of 8
Notes
3V Max
3V Max
3V Max
3V Max
3V Max
3V Max
3V Max
3V Max
Control Signal
Control Signal
Control Signal
External On/Off
3.6V±5% Max
3V Max
3V±2.5%
3V±2.5%
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