TK604 user manual
8
2.2 front panel definition
The front panel is shown below
：
2.2.1
LED indicator and status description
【
PWR
】
Power input status indicator light. The light indicates that the system power is working
properly
；
【
SD1
、
、
、
、
SD2
】
SD card work lamp. The light indicates that SD card works normally. Lamp extinguishing
means no SD card or SD card abnormality
【
HOT
】
Hard disk heat lamp, lower than 0
℃
automatic heating, heating normally on a red light
；
【
4G
】
Network indicator light, when registered successfully, the network light is long, unregistered or
registered failed lamp flicker
；
【
ALM
】
alarm light, the system has alarm lights, no alarm when the lights went out
；
【
BD
】
positioning to BD signal lights, not positioning or lights flashing when positioning failure
；
【
REC
】
video work indicator light.The LED light indicates that the video is currently being recorded
2.2.2
Other interface instructions
【
【
【
【
Panel lock
】
】
】
】
Control the device switch machine, lock the SD card at the same time, prevent the plug
；
【
【
【
【
SD1
、
、
、
、
SD2
】
】
】
】：
SD card slot for recording video data, configuration file update and upgrade
。
【
【
【
【
SIM
】
】
】
】
3G/4G phone card slot
；
【
IR
】
Remote input to receive remote control signal
。
【
【
【
【
USB
口
口
口
口】
】
】
】：
Import and export data or upgrades for the U disk
。
