Universal Connector Terminal Function - Kenwood NX-300 Service Manual

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