Kenwood NXR-1800 Service Manual page 47

Pin Pin
I/O Signal Type
No. Name
3 D+ I/O Analog
4 GND - GND
2.14.4 CONTROL I/O D-SUB 25 针连接器
Pin Pin
I/O Signal Type
No. Name
1 NC -
RSSI O Analog
RESET I Digital
2 RXD2 I Digital
3 TXD2 O Digital
4 AI1 I Digital
CTS I Digital
5 AI2 I Digital
RTS O Digital
6 AI3 I Digital
7 DG - GND
8 TD I Analog
Modifi
Function
cation
Parameter
NO USB Data High-speed
Plus
VOH
VOL
Baud Rate
Low-/Full-speed
VIH
VIL
VOH
VOL
Baud Rate
(Low-speed)
Baud Rate
(Full-speed)
USB GND
Modifi
Function
cation
No
Yes RSSI Voltage Range
Yes Reset VIH
VIL
High Pulse
Width
No Asynchronous Voltage Range
Receive Data
Baud Rate
No Asynchronous RL=3k
Send Data
Baud Rate
No Programmable VIH
Function Input1
VIL
Yes Clear to Send Voltage Range
No Programmable VIH
Function Input2
VIL
Yes Request to Send Voltage Swing
RL=3k
No Programmable VIH
Function Input3
VIL
Digital Ground -
No TX Data Input 0.1kHz/0.5Vp-p
(Signaling)
Input Impedance
Rating and Condition
Min Typ
360 -
-10.0 -
480
2.7 -
-
2.8 -
0.0 -
1.5
12
- -
Rating and Condition
Parameter Min Typ
0.0
3 5
100
-30
+/-5.0 +/-9.0
0.7*V
CC
VSS
-30
0.7*V
CC
VSS
+/-5.0 +/-9.0
0.7*V
CC
VSS
- -
0.70 0.75
600
Note
Max Unit
440 mV
10.0 mV
Mbps
3.6 V
0.8 V
3.6 V
0.3 V
Conform to
Universal Serial
Mbps
Bus
Specification
Mbps
(Revision 2.0 April
27, 2000)
- -
Note
Max Unit
3.3 V
+B V
0.5 V
ms
30 V Conform to RS-
232C
230 kbps
V Conform to RS-
232C
230 kbps Conform to RS-
232C
VCC V 47k PU to VCC
5V+/-3%
0.8 V
Conform to RS-
30 V
232C
VCC V 47k PU to VCC
5V+/-3%
0.8 V
V Conform to RS-
232C
VCC V 47k PU to VCC
5V+/-3%
0.8 V
-
0.80 kHzDEV NFW
WFM

600 PD to GND
(No.RA094<Rev.002>)1-47