Zhone 7995 ユーザーガイド
3. Initial Startup and Configuration
3-2
May 2002
7990-A2-GB20-00
Connecting Power
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.
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 +24 or – 48 VDC power source as described in
unit to an external +24 or – 48 VDC power source as described in
Connecting to an Optional External DC Power Source
Using the DC power cable, the TDM SHDSL unit is capable of operating on a +24
or – 48 VDC power supply.
or – 48 VDC power supply.
CAUTION:
Make sure that the power switch is set to off before connecting the power
cable.
cable.
Procedure
To use the DC power cable with +24 VDC:
1. Connect the green wire to a suitable 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 Power receptacle of the unit.
Procedure
To use the DC power cable with –48 VDC:
1. Connect the green wire to a suitable ground.
2. Connect the orange wire to the – 48 VDC source.
3. Connect the black wire to the return.
4. Cut the red, white, and blue wires off at the outer insulation.
5. Plug the power connector into the Power receptacle of the unit.