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2-8 Installing the Ground and Power Cables

HN4000 Hardware Installation Guide 920550-5020 Rev 14

2.6.2 Connecting -48 VDC Power

TheHN4000canbepoweredfromoneortw o‐48VDCpowersources.Iftwopowersources

areused,theHN4000willcontinuetooperatenormallyifoneofthesourcesfails.

Thepowerconnectorhasfourpins‐twopinsforeachofthetwo‐48VDCpowersourcesthat

can

beconnectedtothedevice.

Takethefollowingstepstoinstallandconnecta‐48VDCpowersource(orsources)toan

HN4000.

Step 1. Ifthepanelprovidingthe‐48VDCsourceisequippedwithacircuitbreaker,move

thebreakertotheOFFposition.Ifthepanelisequippedwitha

fuse,removethe

assignedfuse.

Step 2. ReferringtoFigure 2‐8,takethefollowingstepstoconnectthe‐48VDCcabletothe

provided4‐pinpowerplug.

a. Stripapproximately1/8”(0.32cm)ofinsulationfromthe‐48VDCcable’stwo

leadsandtinthem.

b. Insertthetinnedendofthecable’s‐48

VDCleadintopin1ofthe4‐pinpower

plug.Tightenthepin’sclampingscrewwitha1/8”flat‐bladescrewdriver.(This

leadwillconnecttothe“A ‐48”pinoftheHN4000’spowerconnector.)

c. Insertthetinnedendofthecable’sreturn(RTN)leadintopin2of

the4‐pinpower

plugandtightenthepin’sclampingscrew.(Thisleadwillconnecttothe“A RTN”

pinoftheHN4000’spowerconnector.)

Figure2‐8 PowerPlugConnectionsforSingle(“A”)andDual(“A”and“B”)PowerSources

Note

HN4000 power conductors must be 14 - 18 AWG (1.6 - 1.0 mm) copper wire.

Hatteras HN4000 User Manual

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