www.pulsar.pl POE0848
3
1. Technical description.
1.1. General description.
The PSU is designed for supply of up to 8 cameras IP requiring stabilized voltage of
48V DC
.
The output
voltage can be adjusted with a potentiometer between
46V÷52V DC
. The power is carried over the spare pairs (4/5
&
7/8), which, according to the Ethernet network standard, are not used for data transmission (data transmission
uses 1/2 and 3/6 data pairs). The PSU is housed in a metal enclosure with signaling panel equipped with a
microswitch indicating door opening (front cover).
The PSU can not be used in Gigabit Ethernet networks, where all twisted pairs are involved in the
transmission of data!
1.2. Block diagram.
Fig. 1. Block diagram of the PSU.
1.3. The description of components and connectors of the PSU.
Table 1.
Component No.
[Fig. 2]
Description
[1]
IN
–
screw connection, input power supply of the module (factory setting)
[2]
red LED
– indicates power 48V DC at the
IN
output
[3]
Optional, external optical indication connector (factory setting)
[4]
PoE 1 ÷ PoE4
- Network outputs (Et power supply)
– for camera connection
[5]
LAN 1 ÷ LAN4
- Network inputs (Ethernet)
– for connecting the Ethernet network switch
[6]
Mounting board
Table 1. The description of components of the PoE module.
Fig. 2. Components arrangement.
