Black Box 5000 manual Checking the CCM Indicators, LCD/Keypad Information if you wish to stop

Multiserver 5000

On the front of the unit is a liquid-crystal display				reset A1. This means that the default link
(LCD). After the unit completes its internal tests,
				channel has been reset. The backlight will
the clock will start and the LCD will display a
				eventually time out. See Section 13.1, General
message.
				LCD/Keypad Information if you wish to stop the
The LCD backlight will also flash. This indicates				backlight from blinking before it times out.
that there is alarm message, probably			Local Link	4.5 Checking the CCM Indicators
				Once the self-test has been completed, the CCM
	Multiserver 5000		Time: 00:01:23
				indicators on the front of the unit should display AT
				on and BO off. The indicators for port A1 will be
		LCD DISPLAY
				flashing, unless it is correctly attached to an
				interconnect link. The indicators for ports A2 to A6
				will probably be off, though any or all may flash.
				This will depend on how each of the ports is
				configured. Figure 4-7 shows the most-probable
				status of your indicator lights when you power-up
				the Multiserver for the first time.
				If the CCM indicators are lit differently:
				• Refer to Table 4-1 on the next page for indicator
				interpretation,
				• Check that the CommPak cartridge is fully
Figure 4-6. Default LCD message after power-up.				seated, and
				• Make sure that the wall outlet is operational.

CCM indicators

Normal Status On Power Up

AT BO A6 A5 A4 A3 A2 A1

Key:

LED on	A1-A6 = port numbers
LED off	BO = buffer overflow

LED blinking

AT = active mode

Figure 4-7. CCM indicators at the time of power-up.

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