How is the power supply of each equipment in the communication room connected?
The AC distribution panel passes the high frequency switching power supply, converts the 380V alternating current into -48V direct current, and supplies it to the DC distribution panel and the valve controlled sealed lead-acid battery. When the AC current is normal, the high frequency switch supplies power to the communication equipment and charges the battery. When an AC fault occurs, the battery pack supplies power to the device.
The introduction of high voltage cable from the power supply bureau (10KV) high voltage switchgear to the communication of the building, through the high voltage cable from high voltage switchgear to the transformer, then connect the bus to the low voltage switch cabinet by hard copper by low voltage switchgear to the AC power distribution panel and UPS, the main road near the road.
Leads DC power cable to each floor, from the DC power distribution panel partitions DC power supply cabinet cabinet by a branch branch, assigned to the floor or the district where each column by column head head cabinet, cabinet to the power supply communication equipment series.
