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MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111
Issue 1
February 1998
Programming Procedures
Page 4-89DS1 Facilities
4
In Release 6.0 and later systems, T1 S56 service is not supported for tandeming
applications. Use PRI instead.
If you select T1, channels can emulate ground- or loop-start trunks, tie trunks, or
DID trunks in any combination. Note that unused channels must be specified as
unequipped.
If either T1 or PRI is selected, channels can be used for ASN services. When T1
channels are used for ASN services, each channel must be programmed for tie
trunk emulation.
If you select PRI, you must also perform additional procedures. At a minimum, the
Framing Mode and Zero Code Suppression procedures must be performed. See
“PRI Facilities” on page 4–165
for more information.
Summary: Type of DS1 Facility 4
Programmable by System Manager
Mode All
Idle Condition 100D module idle
Planning Form Form 2c, System Numbering: Line/Trunk Jacks
Form 3b, Incoming Trunks: DS1 Connectivity (100D module)
Factory Setting T1, see Table 4–1
for options
Valid Entries T1, PRI
Inspect Yes
Copy Option No
Console Procedure To select PRI:
→ →Dial slot no.→ →
→ → → → → →
To select T1: All Ground, All Loop, or All Unequip:
→ →Dial slot no.→ → →
→ →Select type of emulation→ →
→ → →
To select T1: Ground-Start, Loop-Start, All Tie, or Unequip:
→ →Dial slot no.→ →
→ → →Select type of emulation→ →
Dial channel no.→ → → → →
To select T1: All DID:
→ →Dial slot no.→ →
→ → →More→ → → →
→ →