Appendix E Wiring the –48 VDC Power Supply
Wiring Requirements
© 2012 Harmonic Inc.
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Electra 1000, Version 3.0, Rev M
E.4 Wiring Requirements
The encoder is connected to the DC power source using three wires:
–Vin
GND
+Vin
Although Harmonic provides the power input connector with the NSG device, you must
supply the wires.
The wires must comply with the specifications shown in Table E-2.
E.5 Power Connector
The encoder is supplied with a special DC power connector plug that matches the DC power
socket on the back of the encoder.
This connector is made by WAGO, model number 231-103/037-000.
Use only the original connector for connecting the encoder to the DC power source. Contact
Harmonic Technical Support if you want to use any other type of connector.
Figure E-2 shows the connector and its strain relief housing.
Figure E-2: DC power connector
Table E-2: DC Power Wire Requirements
Parameter
Specification
Suitable conductor material
Copper only
–
Vin and +Vin wires
16 AWG rating
Ground cable
16 AWG rating
Cable insulation rating
Minimum 80 C, low smoke fume (LSF), flame
retardant
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 color
Green-yellow