Instruction manual

Lines
Table 3-6 Guide to DS1 Facilities Ordering
See Your AT&T representative or
authorized dealer for the current release
and version number of the system.
Communication System
Manufacturer
AT&T
Model
MERLIN LEGEND
Type (Mode)
digital Key
Jack Type
RJ48C or RJ48X
Facility Interface Code Digital D4 Framing 04DU9-B
Digital ESF Framing 04DU9-C
Digital ESF and B8ZS 4DU95
Digital PBX
■ Has the EIA standard CISA transmission path
■ Is slenderized
■ Is the equipment that must be timed
■ Has an internal stratum clock level of 4
■ Provides automatic call distribution through Group Calling feature
■ Provides Ioopback (keep signal alive) through CSU
Channel Service Unit
❑
❑
❑ Other
Manufacturer AT&T AT&T
Model
551-T1 L1
ESF-T1
Reg. Number GI 472- GIC 472-
26819-DE-N 16544-DE-N
Facility Interface Codes:
Digital D4 Framing 04DU9-B
Digital ESF Framing 04DU9-C
Digital ESF and B82S 4DU95
Standard CSU jacks and test points provided
Audible Ringing Source
❑
Digital Key
❑ Channel Service
Testing Service
❑
AT&T ❑
If a CSU other than those listed above is used, AT&T will not accept the
responsibility for its installation, connection, or testing.
Echo Control Device
Not used
3-32 Line Options