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MEITRACK MD822S MDVR User Guide
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indicator video data is written into the storage disk.
Blink suddenly (once every 5 seconds;
indicator on: 100 ms) A storage disk is detected, but no data is
written into the storage disk.
Steady off No storage disk is detected.
SD SD card LED
indicator Blink fast (frequency for writing data) An SD card is detected and there is written
audio and video data in the SD card.
Blink suddenly (once every 5 seconds;
indicator on: 100 ms) An SD card is detected, but no data is written
into the SD card.
Steady off No SD card is detected.
3G/4G 3G/4G LED
indicator Blink suddenly (once every 5 seconds;
indicator on: 100 ms) There is a 3G/4G module, but no data is sent.
Blink fast 3G/4G data is sent and received normally.
Steady off There is no 3G/4G module.
SYS Network
status LED
indicator Steady on There is an incoming call, or the subscriber
you dialed is busy now.
Blink fast (once every 0.1 seconds) The device is being initialized.
Blink fast (0.1 seconds on and 2.9 seconds
off) A signal is received from a base station
(connected to a mobile network).
Blink slowly (1 second on and 2 seconds
off) No signal is received from a base station (not
connected to a mobile network).
GPS GPS LED
indicator Steady on A button or an input is triggered.
Blink fast (once every 0.1 seconds) The device is being initialized, or the battery
power is low.
Blink fast (0.1 seconds on and 2.9 seconds
off) A GPS signal is received.
Blink slowly (1 second on and 2 seconds
off) No GPS signal is received.
VLOSS Video lost LED
indicator Steady on All AV inputs are not connected to cameras.
Blink suddenly (once every 5 seconds;
indicator on: 100 ms) One AV input is not connected to a camera.
Blink suddenly (twice every 5 seconds;
indicator on: 100 ms; interval: 300 ms) Two AV inputs are not connected to cameras.
Blink suddenly (3 times every 5 seconds;
indicator on: 100 ms; interval: 300 ms) Three AV inputs are not connected to
cameras.
Blink suddenly (4 times every 5 seconds;
indicator on: 100 ms; interval: 300 ms) Four AV inputs are not connected to cameras.
Blink suddenly (5 times every 5 seconds;
indicator on: 100 ms; interval: 300 ms) Five AV inputs are not connected to cameras.
Blink suddenly (6 times every 5 seconds;
indicator on: 100 ms; interval: 300 ms) Six AV inputs are not connected to cameras.
Blink suddenly (7 times every 5 seconds;
indicator on: 100 ms; interval: 300 ms) Seven AV inputs are not connected to
cameras.
Steady off All AV inputs are connected to cameras.