3Com T1/PRI manual Time slot is available and awaiting a call, NetServer PRI NAC, On span lines 1

4-6CHAPTER 4: DUAL T1/PRI STATUS DISPLAYS

■IDLE

The time slot is available and awaiting a call.

■OOS

The time slot is blocked either at the Telco or locally.

The device type column displays the type of device handling the call.

It displays one of these:

■ QBCH-MDM

Quad Modem card.

■ QBCH-I_MDM

	Quad I-Modem card.
	■ ISDN-GW
	NetServer PRI NAC.
	The slot/chan column shows what modem slot/channel the individual
	time slots are mapped to.
Menu Options	Checking span line 1 and 2’s alarm/event status
7 and 9	Status menu options 7 and 9 allow you to monitor alarm and event status
	on span lines 1 and 2.

The status of the following items is displayed on these screens:

■Receiver Gain

This is a function of line interface unit that indicates the T1 span line signal strength in 7.5 dB increments: 0 dB, 7.5 dB, 15 dB and

22.5dB (0 dB is a strong signal).

■Errored Seconds

This indicates out of frame (OOF) conditions, frame slip conditions, or error events for super frame (SF) and extended super frame (ESF) framing formats. For SF, it reports the number of seconds the frame was in either OOF or slip condition. For ESF, it reports error events in seconds.

■Severely Errored Seconds (SES)

This reports how many seconds were timed during which bit, frame, and CRC error events existed.