Nortel Networks NN43001-301 manual Mfao YES no, Szni YES no, Mff Crc, Aff

2502.0 Mb DTI implementation

Prompt	Response	Description
MFAO	YES (NO)	DTI card will or will not set bit 3 of timeslot 0 if loss of
	<CR>	Multiframe Alignment Signal (MFAS) occurs.
		2.0 Mb DTI default = NO
		<cr> = no change is required
SZNI	YES (NO)	PSTN incoming seizure during lockout of MFAS and far-end
		fault states allowed (denied)
MFF	CRC	Multiframe format - Cyclic Redundancy Check (CRC 4)
	(AFF)	Alternative Frame Format
		Note: Prompted for Small Systems.

The following prompts and associated responses define the grade of service timers for the DTI card. Group I problems are treated individually. They are bipolar violations, bit error rate (frame alignment) slips, and CRC-4 errors.

Group II problems are treated as a group. They are bit 3 of TS0 (far-end out of service), bit 6 of TS16 (far-end lost multiframe alignment), AIS (alarm indication signal), loss of frame alignment, and loss of multiframe alignment.

Responses are interpreted as follows:

•mt = Maintenance threshold time.

•ct = New call suppression (hardware service removal) threshold time.

•ot = Out of service threshold time.

•dt = No new data calls suppression threshold time.

Each of the response times are expressed as follows:

•nnnY = time in milliseconds where nnnn = 20-5000 (input to nearest 20 milliseconds.)

•nnnS = time in seconds where nnn = 1-240

•nnnM = time in minutes where nnn = 1-240

•nnH = time in hours where nn = 1-24

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301 02.03 Standard

Release 5.5 7 December 2007

Copyright © 2003-2007, Nortel Networks