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1 Turn of the power and unplug the unit.
2 Release the fuse holder by gently levering a small screwdriver under the fuse
3 Remove the old fuse and replace it with a new one.
4 Close the fuse holder.
Step 4: Connect I/O
Cabling
Figure 21 illustrates the power supply socket and fuse.
Figure 21 SuperStack II RPS Power Supply Socket and Fuse
The PathBuilder S330/S310 switch automatically adjusts to the supply voltage. The
fuse is suitable for both 110V AC and 220-240V AC operations.
To change the fuse:
CAUTION: Ensure that the power cord is disconnected before opening the fuse
holder cover.
holder catch. Use only 2A anti-surge type fuses of the same type and manufacture
as the original.
The PathBuilder S330/S310 switch ships with the standard interfaces installed.
Unless you have purchased optional modules, you do not need to install any
additional modules. For details about how to install the optional CBR, voice
compression, and DS3/E3 UNI modules, see "Step 1 (Optional): Install the Optional
Modules in the Unit" earlier in this chapter.
The following LEDs indicate the status of the PathBuilder S330/S310 switch as a
whole. (See Figure 22.)
Power (green) — Illuminates when the unit is turned on.
Status (green) — Illuminates when the CPU completes downloading and
flashes in normal state.
Alert (red) — Illuminates when a major alarm is detected in the unit. See
Chapter 5 for information about managing system alarms.
Installation Procedures
Spare fuse holder
Fuse
AC Power
27
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