Kenwood NXR-901 Service Manual page 37

Microphone Connector
Pin Signal
Pin Name I/O
No. Type
1 NC - -
2 SB - Power
3 GND - GND
4 PTT I Digital
5 MIG - -
6 MIC I Analog
7 HOOK I Digital
8 NC - -
LAN Connector (RJ-45)
Pin Signal
Pin Name I/O
No. Type
1 TD+ O Analog
2 TD– O Analog
3 RD+ I Analog
4 NC - -
5 NC - -
6 RD– I Analog
7 NC - -
8 NC - -
SYNC Connector
Pin Signal
Pin Name I/O
No. Type
1 FRMA I/O -
2 NC - -
3 NC - -
4 FRMB I/O -
TERMINAL FUNCTION
Description /port
Specifi cation
Type
-
Voltage value
Power
Allowable current value
Digital GND Allowable current value
PTT Signal
CMOS
Active Low
Input impedance
MIC GND
Input amplitude value
(60%Dev@1kHz)
Input impedance
MIC Input
(DC to 10kHz)
Allowable frequency
HOOK Detect Signal
CMOS
Active Low
Input impedance
-
Description /port
Specifi cation
Type
TX Signal +
TX Signal –
RX Signal +
-
-
RX Signal –
-
-
Description /port
Specifi cation
Type
[Input] VID=VA–VB
RS-485 Differential
[Output] (No load)
Signal A
VOD=|VA–VB|
-
-
[Input] VID=VA–VB
RS-485 Differential
[Output] (No load)
Signal B
VOD=|VA–VB|
Min Typ
- - -
10.8 13.8
- -
- -
VIH 0.8Vcc -
VIL 0 -
- 47k
- - -
4 5.5
- 600
0.3 -
VIH 0.8Vcc -
VIL 0 -
- 47k
- - -
Min Typ
- 0.95 -
- 0.95 -
- - -
- - -
- - -
- - -
- - -
- - -
Min Typ
–12 -
3 4.3
- - -
- - -
–12 -
3 4.3
NXR-901
Max Unit Remarks
- - -
Related to DC power
15.9 V
supply terminal input
0.2 A
voltage.
0.2 A -
Vcc V
Vcc=5V±2%
0.2Vcc V

- 47k PU
- - -
7 mVrms -

-
3 kHz
Vcc V
Vcc=5V±2%
0.2Vcc V

- 47k PU
- - -
Max Unit Remarks
1.05 V Conform to IEEE802.3
1.05 V Conform to IEEE802.3
Use Designated Trans-
- -
former
- - -
- - -
Use Designated Trans-
- -
former
- - -
- - -
Max Unit Remarks
12 V
Conform to RS-485
- V
- - -
- - -
12 V
Conform to RS-485
- V
37