Kenwood NX-820H Service Manual page 57

8pin Modular Connector Specifi cation
Pin Pin Signal
I/O
No. Name Type
1 MBL O Digital
2 SB O Power
3 GND O GND
PTT I Digital
4
TXD O Digital
5 ME - GND
6 MIC I Analog Audio input
HOOK/
7 I Digital
RXD
I Digital
8 DM
O Digital
15pin D-sub Connector Specifi cation
Pin Pin Signal
I/O
No. Name Type
1 SB - Power
2 IGN I Digital
3 SP2 O Analog Speaker output
TERMINAL FUNCTION
Description/port type Item and Condition
VOH
CMOS output
VOL
Output Voltage
Switched B output
Output Current
Ground -
VIH
CMOS input
(Pull Up : 5.0V/10k)
VIL
VOH
CMOS 3-State Buffer
output VOL
(Pull Up : 5.0V/22k)
Baud rate
MIC Ground MIC Groud
Aoutput
Copling Capacitor
Input impednce
Allowable Frequency
VIH
Digital transistor input
VIL
(Pull Up : 5.0V/4.7k)
Baud rate
VIH
VIL
CMOS input
(Pull Up : 5.0V/47k))
VOH
VOL
Description Item and Condition
Voltage
Switched B output
Supply Current
(with KCT-60)
Ignition sense input Input Voltage
Audio output
Coupling Capacitor
RL
Allowable Frequency
NX-820H(G)/820H
Min Typ Max Unit
3.7 5.2
- 1.1
This parameter depends on Bat-
tery voltage.
200
2.7 5.2
-0.3 0.5
3.7 5.2
- 1.1
- 19200
This is ground port for Micro-
phone.
5 - mVrms
10 -
600 -
300 3000
2.7 5.2
-0.3 0.9
- 115200
2.7 5.2
-0.3 0.5
3.7 5.2
- 1.1
Min Typ Max Unit
This parameter
depends on Battery V
voltage.
- - 2.0 A
- - 0.5 A
10.8 - 16 V
3 4 - W
- 330 - uF

4 - -
300 - 3000 Hz
Note
V
V
mA
V
V
V
V
bps
uF
Hz
V
V
bps
V
V
V
V
Note
at
4,10%Distortion
57