User manual

Maintaining the LightStream 1010 ATM Switch 4-13
Removing and Installing DC Power Supplies
Removing the DC Power Supply
Follow these steps to remove a DC-input power supply:
Caution To prevent problems with the switch, do not mix DC-input power supplies with
AC-input power supplies in individual switches.
Step 1 Verify that power is off to the DC-input circuit furnishing power to the power
supply you are removing.
Step 2 Turn OFF the power switch on the power supply you are removing (see
Figure 4-8).
Figure 4-8 DC Power Supply Power Switch and LED
Step 3
Remove the terminal block cover by depressing the two plastic levers on each
side of the terminal block (see Figure 4-9).
INPUT
48/60
14.0/8.0 A
H9788
Power
switch
LED