Connecting The Dc Power Cables - 3Com S7906E Getting Started Manual

Connecting the DC Power Cables

PSR320-D power module
Figure 3-10 Connect the DC power cable for the PSR320-D
Turn off all switches on the switch before connecting the DC power cables.
To connect the DC power cable for the PSR320-D, proceed as follows:
1) Remove the protection cover from the power module.
2) Loosen the fastening screw on the wiring terminal with a Phillips screwdriver.
3) Connect the end of the blue DC power cable marked with – to the negative terminal (–) on the
power module and fasten the screw.
4) Connect the end of the black DC power cable marked with + to the RTN (+) terminal on the power
module and fasten the screw.
5) Put the protection cover on the wiring terminals.
6) Connect the other ends of the DC power cables to the wiring terminals that provide a power supply
to the switch.
PSR650-D power module
Refer to section "PSR320-D power module" on page 3-8.
3-8