Kenwood NEXEDGE NXR-810, Руководство по обслуживанию

Страница: 102 / 169

NXR-810
102
CONTROL I/O 25 pin D-sub Connector
Pin
No
Pin Name I/O
Signal
Type
Signal Summary Specifi cation Min Typ Max Unit Remarks
1 NC (RSSI) - - - - - - - -
2 RXD 2 I Digital
Serial Data input 2
RS-232C level
- –15 - +15 V
3 TXD 2 O Digital
Serial Data output 2
RS-232C level
- ±3.5 ±4.2 V
4 AI1 I Digital
Programmable
Function Input 1
/CMOS
VIH 0.8Vcc Vcc V
Vcc=5V±2%
VIL 0 0.2Vcc V
Input impedance 47k Ohm 47k ohm PU to Vcc
5 AI2 I Digital
Programmable
Function Input 2
/CMOS
VIH 0.8Vcc Vcc V
Vcc=5V±2%
VIL 0 0.2Vcc V
Input impedance 47k Ohm 47k ohm PU to Vcc
6 AI3 I Digital
Programmable
Function Input 3
/CMOS
VIH 0.8Vcc Vcc V
Vcc=5V±2%
VIL 0 0.2Vcc V
Input impedance 47k Ohm 47k ohm PU to Vcc
7 DG - GND Digital GND - - - - -
8 TD I Analog
TX Data Input
(signaling)
INPUT: 0.1kHz/0.5Vp-p 0.7 0.75 0.8 kHzDEV NFM/WFM
Input Impedance 600 Ohm
600 ohm PD is ap-
plied to GND.
9 TA I Analog
TX Audio Input
(voice)
1kHz/60% Dev 270 280 290 mV
Input impedance 600 Ohm
600 ohm PD is ap-
plied to GND.
10 RD O Analog
RX Data Output
(signaling)
Not squelched
INPUT: 60% Dev. 75 80 85 mV
11 RA O Analog
RX Audio Output
(voice)
Squelched
INPUT: 60% Dev. 380 400 420 mV
12 RXG - GND RX Signal GND - - - - -
13 SPM I Digital
Speaker Mute
/CMOS
VIH 0.7Vcc - 5.5 V
Vcc=3.3V±2%
VIL - - 0.3Vcc V
Input impedance 47k Ohm
47k ohm PU to Vcc
14 BER_CLK O Digital
for Bit Error Rate
Clock
VOH (IO=–20µA) 4.4 4.5 V
VOL (IO=20µA) 0 0.1 V
15 EMON I Digital
External Monitor
Switch
VIH 0.8Vcc Vcc V
Vcc=5V±2%
VIL 0 0.2Vcc V
Input impedance 47k Ohm
16 EPTT I Digital External PTT Switch
VIH 2.0 V
Vcc=5V±2%
VIL 0.8 V
Input impedance 47k Ohm
47k ohm PU to Vcc
17 SC O Digital Squelch Control
VOH (Vcc=5V, IO=–3mA) Vcc–0.7 V
VOL (Vcc=5V, IO=8mA) 0.6 V
18 BER_DAT O Digital
for Bit Error Rate
Data
VOH (IO=–20µA) 4.4 4.5 V
VOL (IO=20µA) 0 0.1 V
TERMINAL FUNCTION