BLiNQ Networks Inc.
X-1200 System Installation Guide
Release 1.0
Confidential - Restricted Use and Duplication
Page
31
Issue 01 D1
Figure 23 Wiring of Lightning/Surge Arrester (Sold by BLiNQ Networks)
6.8
Connecting to DC Power
Before proceeding, if you do not have a direct -48 Vdc power supply, you must install the module power
supply unit (PSU). The PSU allows you to convert from another power source (i.e., North America: 120V)
to -48 Vdc. See Section 6.5, “
Installing the Power Supply Unit (Optional)
” for more information.
BLiNQ Networks provides a 10 m (32.9 ft), 20 m (65.7 ft), or 40 m (131.2 ft) DC power cable (as
applicable for the installation site) with both the HM and RBM. One end of the cable comes equipped
with a DC power connector, while the other end comes terminated with no stripping of either the
external sheathing or any of the internal wires. When connecting the HM or RBM to DC power:
Ensure the input is -48 Vdc and powered from an approved AC/DC power supply or from a DC
source separated from AC mains by double or reinforced insulation.
Ensure that the power can be conveniently removed, if necessary, by disconnecting the DC
power connector plug from the back of the unit. This plug should be accessible for servicing the
unit.
The HM or RBM is protected against an inadvertent reverse polarity connection. Ensure that the DC
power supply is not under-rated and that it is capable of meeting the power requirement of Table 1,
“X-1200 System Specifications” under various temperature and solar loading conditions.
Note:
You may have to cut the cable to the specific cable length needed for your installation.
External
Ground Lug
Four-Position Power
Terminal Strips
Terminal
Blocks
Cable Strain
Reliefs
Ethernet
Pin Strip
Terminals
