Kenwood NX-300S Service Manual page 61

Pin No. Name Device
ANI board
VGS-1
18 OPT11
Scrambler board
ANI board
VGS-1
19 OPT7
Scrambler board
ANI board
VGS-1
20 OPT2
Scrambler board
ANI board
VGS-1
21 TXO
Scrambler board
ANI board
VGS-1
22 RXEO
Scrambler board
ANI board
VGS-1
23 RXEI
Scrambler board
ANI board
VGS-1
24 TXI
Scrambler board
ANI board
25 OPT6 VGS-1
Scrambler board
ANI board
26 POW VGS-1
Scrambler board
TERMINAL FUNCTION
I/O Connection
O Man-Down Man-Down output
- - -
User programmable port
None: Hi-Z with Pull up
O - [COR] L: Detect carrier
[TOR] L: Detect signaling
[LOK](Conventional) L: Transmitting
[LOK](LTR) L: Link
I MIC Mute MIC mute signal input
- - -
O PTT Out Echo PTT no used: PTT signal output
I PTT In Echo PTT used : PTT signal input
I Aux Output Emergency signal input
- - -
Scrambler control signal output
O CLEAR / CODE
H: Clear / L: Code
- - -
- - -
MIC signal output
O TX IN
Before Pre-emphasis
- - -
- - -
Audio signal output
O RX IN
After De-emphasis
- - -
- - -
Audio signal input
I RX OUT
After De-emphasis
- - -
- - -
MIC signal input
I TX OUT
Before Pre-emphasis
- - -
- - -
- - -
O A+ Switched B output
- - Note: POW and 5V can not be used simultaneously.
O POWER (+B) Power supply output
NX-300(S)
Function
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