ADTRAN Cable T1 ESF CSU ACE - Manual (Page 35)

Chapter 4. Operation
61202066L1-1B T1 ESF CSU Rackmount User Manual 35
DTE Options
Format (DTE)
This option selects the framing format for the DTE interface. Superframe
format (SF) and extended superframe format (ESF) are the two choices.
The DTE interface framing format must match that of the DTE. The
network and equipment interfaces may use different framing formats from
each other with the Tl ESF CSU RM doing the translation.
Line Code (DTE)
This option selects whether the Tl ESF CSU RM uses straight AMI line
coding or B8ZS at the DTE interface. B8ZS ensures 1s density
requirements on the network by replacing an all 0s byte with a specific
byte containing two intentional bipolar violations (BPVs). The T1 ESF
CSU RM can convert AMI to B8ZS so that older equipment can use
B8ZS
lines.
TX LBO (DTE)
This option selects the boost necessary to transmit a signal up to 655 feet
from the Tl ESF CSU RM. The settings are based on the distance from
DTE to Tl ESF CSU RM.