HardwareReplacement 9-31
Octel 200/300 S.4.1PB60019−01
Replacing the Fuse
1. Unlock and open the door of the cabinet.
2. Turn OFF the powerswitch on the front of the PSU.
3. Remove the fuse-holder cap, using a flat-blade screwdriver.
4. Remove the fuse and verify that the fuse is blown. Toremove the fuse, pull the end of the fuse out of
the fuse cap.
5. Replace the fuse with a fuse of the same rating. Toreplace the fuse, push one end of the fuse into the
fuse-holder cap and insert the cap into the fuse holder.
6. Tighten the fuse-holder cap with a flat-blade screwdriver.
7. Turn ON the power switch.
8. Check the LEDs on the cards to see whether they are lit.
9. Check that the disk drive and fans are running.
10. Close and lock the door of the cabinet.
Octel 300 Power Supply Unit
The Octel 300 PSU and the floppy disk drive are separate units and can be replaced separately.
Figure 9-20 shows the Octel 300 power supply assembly. The appearance of the 120 VAC240 VAC and
100−240VAC auto-ranging PSUs are the same.
Circuit Breaker
Captive Chassis-
Mounting Screws
Figure 9-20 Octel 300 Power Supply Assembly
Octel 300 120 VAC and 240 VACPSU Power Filter Assembly
The power filter assembly is a unit that includes a power entry connection and a power line
EMI-suppression filter. The power line filter varies with input power type; for domestic use the input
power is 120/240 VAC,and for international use it is 240 VAC or −48VDC.