Kenwood NXR-700 Service Manual page 38

NXR-700
Microphone Connector
Pin Signal
Pin Name I/O
No. Type
1 NC -
2 SB - Power
3 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
38
TERMINAL FUNCTION
Description /port
Type
- -
Power
GND Digital GND
PTT Signal
CMOS
Active Low
- MIC GND
MIC Input
HOOK Detect Signal
CMOS
Active Low
- -
Description /port
Type
TX Signal +
TX Signal –
RX Signal +
- -
- -
RX Signal –
- -
- -
Description /port
Type
RS-485 Differential
-
Signal A
- -
- -
RS-485 Differential
-
Signal B
Specifi cation Min
- -
Voltage value 10.8
Allowable current value -
Allowable current value -
VIH 0.8Vcc
VIL 0
Input impedance -
- -
Input amplitude value
4
(60%Dev@1kHz)
Input impedance
-
(DC to 10kHz)
Allowable frequency 0.3
VIH 0.8Vcc
VIL 0
Input impedance -
- -
Specifi cation Min
- 0.95
- 0.95
- -
- -
- -
- -
- -
- -
Specifi cation Min
[Input] VID=VA–VB –12
[Output] (No load)
3
VOD=|VA–VB|
- -
- -
[Input] VID=VA–VB –12
[Output] (No load)
3
VOD=|VA–VB|
Typ Max Unit
- - -
Related to DC power
13.2 15.6 V
supply terminal input
- 0.2 A
- 0.2 A
- Vcc V
Vcc=5V±2%
- 0.2Vcc V

47k -
- - -
5.5 7 mVrms

600 -
- 3 kHz
- Vcc V
Vcc=5V±2%
- 0.2Vcc V

47k -
- - -
Typ Max Unit
- 1.05 V Conform to IEEE802.3
- 1.05 V Conform to IEEE802.3
Use Designated Trans-
- - -
- - -
- - -
Use Designated Trans-
- - -
- - -
- - -
Typ Max Unit
- 12 V
Conform to RS-485
4.3 - V
- - -
- - -
- 12 V
Conform to RS-485
4.3 - V
Remarks
-
voltage.
-
47k PU
-
-
47k PU
-
Remarks
former
-
-
former
-
-
Remarks
-
-