1) Used together with receiving card MRV320;
2) Support LED open and short circuit detection (drive IC support required);
3) Support flat cable fault detection;
4) Support cabinet humidity detection (no extra purchase necessary);
5) Support cabinet temperature detection (no extra purchase necessary);
6) Support 8-way power supply voltage detection;
7) Support 4-way fan speed detection;
8) Cabinet door open/close status detection supported;
9) Monitor card HUB required for LED status inspection or flat cable detection;