Top and Bottom PSU Display Options

When you select the Top PSU or the Bottom PSU, the screen illustrated in Figure 3-14 is displayed.

Figure 3-14

Power Supply Summary Screen

The fields on this screen are:

Description Shows the product name of the selected PSU.

Serial Number Shows the PSU's serial number. Keep a note of this number in case the PSU ever has to be returned to 3Com for servicing.

Power Bus 1 Displays the state of the PSU's first transformer, i.e. the second LED on the PSU.

Power Bus 2 Displays the state of the PSU's second transformer, i.e. the fourth LED on the PSU.

DC Bus Displays the state of the PSU's DC converter, i.e. the third LED on the PSU.

Reference Provides a field for you to enter a text description of the device (PSU).

Clock Source

Press [CTRL]+[C], to display the screen shown in Figure 3-15. The fields relate to the PSU clock card. The clock card is installed in the PSU and is used to control the AccessBuilder 7000 bus.

	The same screen can also be displayed by selecting the Top Clock Source or Bottom Clock Source display options.

Figure 3-15

Clock Source Screen

The fields in this screen are:

Description Displays the product description, i.e. this is a PSU clock source.

Reference Provides a text field that can be used to describe what the product is, where the product belongs (which AccessBuilder 7000), etc.

Serial Number Shows the serial number of the clock card. This number may be required if the unit needs to be returned to 3Com for servicing.

Revision Shows the version number of the clock card.

Status Displays the status of the clock card. For example, is the card OK, is the card in a state of Alarm, etc.