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Connecting power to the unit, Optional power sources – Paradyne M/HDSL Standalone Termination Unit HOTWIRE 7986 User Manual

Page 28

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Initial Startup and Configuration

3-2

7986-A2-GB20-10

December 1998

Connecting Power to the Unit

If your package includes a power pack: Plug the power pack into an ac outlet
having a nominal voltage rating between 100–240 Vac. Connect the output cable
of the power pack to the connector marked POWER on the rear panel.

If your package includes a direct-connection dc power cable: Connect the unit to
an external dc power source as described in

Connecting the Unit to an Optional

External DC Power Source

.

Optional Power Sources

Using the optional dc power cable, the unit is capable of operating on a +24 Vdc
power source. To select the power, choose one of the following power supply
types.

Connecting the Unit to an Optional External DC Power Source

Using the dc power cable, the Hotwire 7986 Standalone Termination Unit is
capable of operating on a +24 Vdc power supply.

NOTE:

The E1 M/HDSL Unit is typically powered by the ac power module. Use the
following procedures only if you want to use an optional dc power source.

"

Procedure

To use the dc power cable:

1. Connect the green wire to a suitable earth ground.

2. Connect the orange wire to the +24 Vdc source.

3. Connect the white wire to the return.

4. Cut the black, red, and blue wires off at the outer insulation.

5. Plug the power connector into the 7986 Standalone Termination Unit.

1

2

3

4

5

6

X

X

Earth Ground

RTN

+24 Vdc

X

Black

Red

Green

White

Orange

Blue

98-14158-01

+24 Vdc Power Supply Pinouts