Appendix A Wiring the –48 VDC Power Supply
Assembling the DC Input Power Cable
© 2011 Harmonic Inc.
37
bNSG 9000 & NSG 9000-3G, Rev D
A.2.1
Power Connector
The NSG 9000 is supplied with a special DC power connector plug that matches the DC
power socket on the power supply.
This connector is made by Positronics, model number PLB3W3F7105A1.
Use only the original connector for connecting the NSG 9000 to the DC power source.
Contact Harmonic Technical Support if you want to use any other type of connector.
The following figure shows the connector and its strain relief housing:
:
A.3 Assembling the DC Input Power Cable
To assemble the DC input power cable:
1.
Prepare the power wires as specified in
A.2 Wiring Requirements
on page 36.
2.
Use the disconnect device to make sure that the power supply from the DC power
source to the cables is switched off.
CAUTION:
Turn off the power before proceeding with these instructions.
3.
Unpack the power connector.
4.
Identify the three wires coming from the DC power source that are used in the
connection to the expansion unit:
Cable type
Must comply with at least one of the
following standards:
UL 1581 (VW-1) - UL style 1028 or
equivalent
EEE 383
EEE 1202-1991
Branch circuit cable
insulation color
Per applicable national electrical codes
Grounding cable insulation
color
Green-yellow
Parameter
Specification
