Kenwood NX-3220 User Manual 5 - Page 14

TERMINAL DESCRIPTIONS, Universal connector NX-3200/ NX-3300

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TERMINAL DESCRIPTIONS Universal connector (NX-3200/ NX-3300) It is possible to use a resin-based cover for the Universal connector. Pin No. Name Description Specification I/O 1 SSW Ext/ Int Speaker Switch Input Hi: INT, Low: EXT I 2 SP+ BTL Output + for External Speaker Standard load 8 K O 3 SP- BTL Output - for External Speaker Standard load 8 K O 4 MSW Ext/ Int MIC Switch Input Hi: INT, Low: EXT I 5 EMC External MIC Input Impedance: 2.2 kK I 6 ME External MIC GND − 7 PTT External PTT Input Low: PTT ON I 8 PF Programmable Function Button Input Input voltage: 0 V - 5.0 V I 9 OPT Aux I/O Port (for EXT Option) I: 0 V - 5.0 V O: Standard load 25 kK I/O 10 E GND GND 11 5V 5 V 5 V power supply output Max output current: 140 mA O 12 TXD Serial Data Output Baud rate: 1.152 Mbps max O 13 RXD Serial Data Input Baud rate: 1.152 Mbps max I 14 EMC External MIC Input Impedance: 2.2 kK I Speaker/ Microphone Jacks (NX-3220/ NX-3320) It is possible to use a resin-based cover for the Speaker/ Microphone jacks. No. Name Description Impedance I/O 1 PTT/ RXD PTT Input/ Serial Data Input 2.7 kK I 2 MICI MIC Input 2.2 kK I 3 NC No Connection − − 4 OPTDET Option Detect 74 kK I 5 50J 5V Output − O 6 AE Audio Earth GND − 7 TXD Serial Data Output 10 kK O 8 EXTSPDET External Speaker Detection − − 9 SPO AF Power Output − O Antenna Terminal 50 K impedance 12

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TERMINAL DESCRIPTIONS
Universal connector (NX-3200/ NX-3300)
It is possible to use a resin-based cover for the Universal connector.
Pin No.
Name
Description
Specification
I/O
1
SSW
Ext/ Int Speaker Switch
Input
Hi: INT, Low: EXT
I
2
SP+
BTL Output + for External
Speaker
Standard load 8
K
O
3
SP-
BTL Output – for External
Speaker
Standard load 8
K
O
4
MSW
Ext/ Int MIC Switch Input
Hi: INT, Low: EXT
I
5
EMC
External MIC Input
Impedance: 2.2
k
K
I
6
ME
External MIC GND
−
7
PTT
External PTT Input
Low: PTT ON
I
8
PF
Programmable Function
Button Input
Input voltage: 0
V - 5.0
V
I
9
OPT
Aux I/O Port (for EXT
Option)
I: 0
V - 5.0
V
O: Standard load 25
k
K
I/O
10
E
GND
GND
11
5V
5 V
5
V power supply output
Max output current: 140
mA
O
12
TXD
Serial Data Output
Baud rate: 1.152
Mbps max
O
13
RXD
Serial Data Input
Baud rate: 1.152
Mbps max
I
14
EMC
External MIC Input
Impedance: 2.2
k
K
I
Speaker/ Microphone Jacks (NX-3220/ NX-3320)
It is possible to use a resin-based cover for the Speaker/ Microphone
jacks.
No.
Name
Description
Impedance
I/O
1
PTT/ RXD
PTT Input/ Serial Data Input
2.7
k
K
I
2
MICI
MIC Input
2.2
k
K
I
3
NC
No Connection
−
−
4
OPTDET
Option Detect
74
k
K
I
5
50J
5V Output
−
O
6
AE
Audio Earth
GND
−
7
TXD
Serial Data Output
10
k
K
O
8
EXTSPDET
External Speaker Detection
−
−
9
SPO
AF Power Output
−
O
Antenna Terminal
50
K
impedance
12