NX-200
61
Universal connector
Pin No. Name I/O
Signal
Type
Function
Rating and Condition
Parameter
Min
Typ
Max
Unit
1
SSW
I
Digital
EXT/INT speaker switch input
L: External speaker ON
H: Internal speaker ON
VIH
2.8 -
5.3
V
VIL
0
-
0.7
V
2
SP+
O
Analog
BTL for external speaker
[8
Ω
load]
Max output power (1kHz, Batt=7.5V)
1.3
1.8
W
[8
Ω
load] DC Bias
2.5
V
[8
Ω
load] Allowable Frequency
300
3000
Hz
3
SP–
O
Analog
BTL output – for external speaker
[16
Ω
load]
Max output power (1kHz, Batt=7.5V)
0.9
1.4
W
[16
Ω
load] DC Bias
2.5
V
[16
Ω
load] Allowable Frequency
300
3000
Hz
4
MSW
I
Digital
EXT/INT MIC switch input
L: External MIC ON
H: Internal MIC ON
VIH
2.8 -
5.3
V
VIL
0
-
0.5
V
5
EMC
I
Analog
External MIC input
Audio Level (STD deviation)
7.7
12.5
17.3
mV
DC Bias
3.3
V
Allowable Frequency
300
3000
Hz
Input Impedance
-
1.8
-
k
Ω
6
ME
-
-
External MIC GND
7
PTT
I
Digital
External PTT input
L: PTT ON
VIH
2.8 -
5.3
V
VIL
0
-
0.7
V
8
PF
I
Analog
Programmable function key input
V (PF2 key ON)
2.2
-
2.8
V
V (PF1 key ON)
1.7
-
2.2
V
V (PF1, PF2 key ON)
1.3
-
1.7
V
9
OPT
I
Digital
Man-down input
Programmable active H/L
VIH
2.8 -
5.3
V
VIL
0
-
0.7 V
10
E
-
-
GND
11
5V
-
Power
5V power supply output
(Output control is FPU programmable)
Output Voltage (Iout=100mA)
4.9
5.0
5.1
V
Maximum Current
-
-
0.2
A
12
TXD
O
Digital
Serial data output
VOH (Io=–5mA)
4.0
-
5.3
V
VOL (Io=5mA)
0
-
0.8
V
Baud Rate
19200
bps
13
RXD
I
Digital
Serial data input
VIH
2.8 -
5.3
V
VIL
0
-
0.8
V
Baud Rate
115200 bps
14
NC
-
-
Not used (reserved for future option)
TERMINAL FUNCTION
