Continuation of the product is:
DSB-64 The DSB-54 is 5-port PoE switch with battery backup designed to power IP cameras operating in IEEE 802.3af standard. Four ports support Power over Ethernet (PoE) function.
With the built-in buffered power supply adapter it can operate with 12V / 7Ah battery and in case of power failure, immediate switching to battery supply.
DSB-54 is designed to mount on the DIN 35 mm rail.
Caution! A battery is not included with the switch. The value of 15.4 W per port is the maximal one. With full occupation of PoE ports the total power consumption should not exceed 40 W.