AT&T MERLIN LEGEND Communications System Key System Planning Forms Errata Key System Planning page 36

Key System Form 3c, Continued
MODULE 1
Service Ordered or Planned
ISDN-PRI
T1
Frame Format
ESF - Preferred.
Required for ISDN-PRI and
international data transmission.
D4 - Maybe used if required by local
telephone company.
MODULE 2
Service Ordered or Planned
ISDN-PRI
T1
Frame Format
ESF - Preferred.
Required for ISDN-PRI and
international data transmission.
D4 - May be used if required by local
telephone company.
MODULE 3
Service Ordered or Planned
ISDN-PRI
T1
Frame Format
ESF - Preferred.
Required for ISDN-PRI and
international data transmission.
D4 - Maybe used if required by local
telephone company.
All fields required for presale.
6
Line Coding (Suppression)
B8ZS-Required for ISDN-PRI.
AMI-ZCS
Line Signaling Mode
Common Channel - Required for ISDN-PRI.
Robbed Bit
Synchronization Timing
Loop-Required for ISDN-PRI.
Local
Line Coding (Suppression)
B8ZS - Required for ISDN-PRI.
AMI-ZCS
Line Signaling Mode
Common Channel - Required for ISDN-PRI.
Robbed Bit
Synchronization Timing
Loop-Required for ISDN-PRI.
LocaI
Line Coding (Suppression)
B8ZS - Required for ISDN-PRI.
AMI-ZCS
Line Signaling Mode
Common Channel - Required for ISDN-PRI.
Robbed Bit
Synchronization Timing
Loop-Required for ISDN-PRI.
Local