Operating instructions
2
1. Technical description
1.1. General description.
The DSB54 switch is designed for uninterruptible power supply of 4 IP cameras (48VDC voltage) and is housed in
a metal enclosure with optional possibility of DIN rail mounting (TH35).
The main elements of this system include:
- 5 port PoE switch
- buffer power supply unit 13,8V which can accommodate 7Ah/12V batterie
- a converter (DC/DC48125) increasing the voltage to 48VDC (supply of the PoE switch)
In case of power decay, a battery back-up is activated immediately.
Automatic detection of any devices powered in the PoE standard is enabled at the 1 – 4 ports of the switch. The UPLINK port
is used for connection of another network device e.g. recorder. The LEDs at the front panel indicate the operation status
(description in the table. 8).
The switch is housed in a metal enclosure (color RAL 9005) with optional possibility of DIN rail mounting
(TH-35). The switch can be mounted in horizontal or vertical position. The operating position can be adjusted by changing
the mounting position (see Fig. 2b).
The PoE technology ensures a network connection and reduces installation costs by eliminating the need to supply a
separate power cable for each device. This method allows supplying other network devices, such as IP phone, wireless
access point or router.
1.2 Block diagram.
Fig. 1. Block diagram.