
MEITRACK MD822S MDVR User Guide
Copyright © 2020 Meitrack Group All rights reserved.
- 11 -
Figure 2.5.2 Rear panel
2.5.3
Interface Definition
Interface
Sign Name
Description
Power interface
PWR
The red cable is connected to the power supply (9–36 V; rated
input: 12V/3A).
The black cable is connected to the GND wire.
The yellow cable is connected to the ACC cable to detect the high
level. The valid level is 3 V. The maximum level is 60 V.
3G/4G antenna connector
3G/4G
SMA connector; 3G/4G main antenna
GPS antenna connector
GPS
GPS antenna connector
WiFi antenna connector
WIFI
WiFi antenna connector
VGA output port
VGA
Default resolution: 1280 x 720
CVBS output port
AV-OUT
Resolution: 704 x 576 (PAL format); 704 x 480 (NTSC format)
Voice intercom I/O port
MIC&SPK
Connect to the A95 handset to communicate with the monitoring
platform.
AV input port
AV-IN1-2&3-4&5-6&7-8 4-channel 6-pin aviation connector; connect to an 8-channel AHD
camera through the camera splitter; support the connection of
different kinds of cameras (D1/720P/1080P).
Support self-adaptive PAL and NTSC formats.
Support 8x1080P@25FPS live video recording.
RS232 interface
RS232 EXT
Connect to a RFID reader, ultrasonic fuel level sensor, and other
peripherals.
Serial communication
interface
RS232/RS485
RS232 interface by default; connect to a peripheral.
Sensor interface
SENSOR
Connect to a fuel level sensor, temperature sensor, iButton reader
or A61 sensor box.
Main line interface
IO&AD&RS485&CAN
Support 8 GPIO inputs, 3 GPIO outputs, 1 RS485J interface, 1 AD
port, and 1 CAN bus interface.