Zhone 7995 インストール手順
7990-A2-ZN10-30
Hotwire TDM SHDSL Endpoints
5
Connecting Power to the Unit
If your package includes a power transformer:
1
Plug the power cable into an AC outlet having a nominal voltage rating between 100–240
VAC.
2
Connect the power cable to the transformer.
3
Connect the output cable of the transformer 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 SELV (Safety Extra Low Voltage) power source
as described in the following section.
as described in the following section.
Connecting the Unit to an Optional External +24 or
–48 VDC Power Source
–48 VDC Power Source
Using the DC power cable, the unit is capable of operating on a +24 VDC or –48 VDC SELV
power supply.
power supply.
To use the DC power cable for +24 VDC:
Procedure
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 unit.
To use the DC power cable for –48 VDC:
Procedure
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 unit.