Doc. No.
Rev.
Date
1.1
1
2020-0
3
-0
6
Damm Cellular Systems A/S, Denmark
BS422 Installation and Setup guideline
BS422
Installation guide-
Specifications subject to change without notice
7
1.2.6 Power connection to BS422
Before starting this task, please read the entire chapter carefully
.
LAN/WAN or LAN/PPS
Figure 1-4:
Power connection
The BS422 is operated at -48V nominal DC SELV (Safety Extra Low Voltage).
DO NOT UNDER ANY CIRCUMSTANCES USE A POWER SUPPLY THAT HAS
THE MINUS CONNECTED TO POWER SUPPLY CHASSIS
The cables used for power supply must be equal to or more than 3 x 1,5mm
2
Connect the three wires in the power connection cable according to the color markings inside
the BS422 system connector.
GND
0 V
(+48V)
- 48V
RX/TX A RXB
PS
LAN
GPS OUT A