Replacing a -48 Volt DC Power Supply
Follow these steps when removing the -48 Volt DC power supply without disconnecting the power cord.
See page 65 for information on replacing the -48 Volt DC power cable.
CAUTION:
Only trained electrical service personnel must make disconnections to the -48 Volt DC power
source.
1. If installed, remove the power supply bay grille to gain access to the power supply bay.
2. Set the defective power supply's ON/STANDBY switch to the STANDBY (O) position.
3. Turn off the power source circuit breaker, protecting the power supply you want to remove.
4. Unplug and remove the keyed cable connector from the power supply socket.
5. Loosen the spring-loaded screws on the power supply faceplate.
6. Carefully pull out the power supply from the slot of the chassis.
7. Remove the replacement power supply from its shipping box and set the power supply's
ON/STANDBY switch to the STANDBY (O) position.
8. Plug the keyed-connector into the power supply socket.
9. Carefully slide the power supply into the selected power supply slot (the same slot from which the
defective supply was removed, or any other available power supply slot).
CAUTION:
Be sure to use the same power type (DC) as the removed power supply. Do not mix AC and DC
power supplies.
10. Hand-tighten the spring-loaded screws that secure the power supply to the front of the switch.
11. Set the power supply's ON/STANDBY switch to the ON (I) position. The replacement power supply is
now fully operational.
12. Optionally, install the power supply bay grille (for installation instructions, refer to page 26.
13. Check the Power Supply LEDs (on the active Controller module, if installed, or active CPSW2 module)
to verify that the replacement power supply is functioning normally. All LEDs for installed power
supplies should be illuminated to indicate normal operation.
64
IBM 8265: Installation Guide
Summary of Contents for 8265 Nways ATM Switch
Page 1: ...8265 Nways ATM Switch IBM Installation Guide SA33 0441 02...
Page 2: ......
Page 3: ...8265 Nways ATM Switch IBM Installation Guide SA33 0441 02...
Page 8: ...vi IBM 8265 Installation Guide...
Page 10: ...viii IBM 8265 Installation Guide...
Page 12: ...x IBM 8265 Installation Guide...
Page 14: ...xii IBM 8265 Installation Guide...
Page 32: ...18 IBM 8265 Installation Guide...
Page 52: ...38 IBM 8265 Installation Guide...
Page 68: ...54 IBM 8265 Installation Guide...
Page 88: ...Models 17S Serial Number Located on the 8265 chassis label 74 IBM 8265 Installation Guide...
Page 98: ......
Page 101: ......
Page 102: ...IBM SA33 441 2...