3Com S330 manual Illustrates the power supply socket and fuse

40CHAPTER 2: INSTALLATION

Figure 16 illustrates the power supply socket and fuse.

Figure 16 SuperStack II RPS Power Supply Socket and Fuse

Spare fuse holder

Fuse

AC Power

The PathBuilder S330/S310 automatically adjusts to the supply voltage. The fuse is suitable for both 110V AC and 220-240V AC operations.

To change the fuse, follow these steps:

1Turn of the power and unplug the unit.

CAUTION: Ensure that the power cord is disconnected before opening the fuse holder cover.

2Release the fuse holder by gently levering a small screwdriver under the fuse holder catch. Use only 2A anti-surge type fuses of the same type and manufacture as the original.

3Remove the old fuse and replace it with a new one.

4Close the fuse holder.

Step 4: Connect I/O The PathBuilder S330/S310 ships with the standard interfaces installed. Unless you Cabling 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 as a whole. (See Figure 17.)

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.