Chapter 1. Introduction T1 ESF CSU ACE User Manual
20 © 2004 ADTRAN, Inc 61204025L1-1B
Figure 1-1. T1 ESF CSU ACE Application
The T1 ESF CSU ACE provides surge protection, signal regeneration, alarms, and loopbacks necessary for
circuit operation and fault isolation. The unit provides the simultaneous use of performance report
messages of ANSI T1.403 and maintenance messages of AT&T TR54016. The T1 ESF CSU ACE also
provides conversion from SF to ESF framing formats, allowing older SF data terminal equipment (DTE) to
take advantage of the superior diagnostic capabilities of ESF T1 facilities.
The unit complies with Part 68 of FCC Rules and with applicable sections of AT&T 62411, ANSI T1.102,
and T1.403.
Figure 1-2 shows the front of the T1 ESF CSU ACE, and Figure 1-3 shows the back of the T1 ESF CSU
ACE. Figure 1-4 shows the jack signal directions.
Figure 1-2. T1 ESF CSU ACE Front View
T1 ESF CSU ACE
PWR
ERR
ALM
ERR
ALM
RMT
LB
NET
CPE
LB
LB
