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LineCode

Specifies the trunk line coding algorithm for AG-T1, AG-E1, AG Quad, AG 4000, and CompactPCI AG Quad trunks.
The valid T1 trunk formats are: Format Definition AMI Alternate marks inverted - standard line coding with no zero code suppression. B8ZS Binary 8-zero suppression (uses patterns of bipolar violations to replace zero data bytes; especially useful for clear channel transmission). AMI_ZCS AMI with jammed bit 7 zero code suppression. AMI_BELL Same as AMI_ZCS. AMI_DDS AMI with zero data byte replaced with 10011000. AMI_GTE AMI with jammed bit 8 zero code suppression, except in signaling frames when jammed bit 7 is used if the signaling bit is zero.
The valid E1 trunk formats are: Format Definition AMI Alternate marks inverted - standard line coding with no zero code suppression. HDB3 High density bipolar 3 code - uses patterns of bipolar violations to replace sequences of 4 zero data bits in order to maintain 1's density on clear channel transmission.
For T1 trunks, LineCode defaults to AMI_ZCS if DigitalMode is set to CAS; otherwise it defaults to B8ZS. For E1 trunks, LineCode defaults to HDB3.

Format	Definition
`AMI`	Alternate marks inverted - standard line coding with no zero code suppression.
`B8ZS`	Binary 8-zero suppression (uses patterns of bipolar violations to replace zero data bytes; especially useful for clear channel transmission).
`AMI_ZCS`	`AMI` with jammed bit 7 zero code suppression.
`AMI_BELL`	Same as `AMI_ZCS`.
`AMI_DDS`	`AMI` with zero data byte replaced with 10011000.
`AMI_GTE`	`AMI` with jammed bit 8 zero code suppression, except in signaling frames when jammed bit 7 is used if the signaling bit is zero.

Format	Definition
`AMI`	Alternate marks inverted - standard line coding with no zero code suppression.
`HDB3`	High density bipolar 3 code - uses patterns of bipolar violations to replace sequences of 4 zero data bits in order to maintain 1's density on clear channel transmission.