AT&T DS1/DMi/ISDN-PRI manual System 75 R1V2 and R1V3, Service/Facility Options, DS1 Circuit Pack

ADMINISTRATION OPTIONS AND REQUIREMENTS — SYSTEM 75 7-107

SYSTEM 75 (R1V2 AND R1V3)

System 75 has the same facility considerations (framing, signaling, line coding format, etc.) as System 85 or Generic 2 and many similar equipment considerations (both require an additional clock circuit pack for synchronization). The main differences are in terms of administration methods (screens for System 75 versus procedures for System 85), and for some fields a difference in terminology. The primary equipment differences are:

●No synchronization cables are required.

●Line compensation is translated in software rather than set by DIP switches.

All screens shown have their fields depicting default or recommended options.

Service/Facility Options

The DS1 CIRCUIT PACK screen is used to define characteristics of a DS1 facility.

NOTE: This screen requires that the circuit pack (TN722/TN722B) have been previously assigned to an equipment location (carrier and slot) by the CIRCUIT PACK ADMINISTRATION screen.

Figure 7-55, DS1 Circuit Pack Screen, depicts this procedure.

	DS1	CIRCUIT	PACK	Page 1 of 1
Location: _ _ _				Name: ____________
Line Compensation:	1	Zero	Code Suppression: zcs
Framing Mode: esf			Signaling	Mode: common-chan
DMI-BOS?	y
	MAINTENANCE PARAMETERS
Slip Detection?	n	Remote	Loop-Around	Test? n

Figure 7-55.DS1 Circuit Pack Screen