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TABLE 1-4 Tie Line Preferred Signaling Formats
Installation Situation
Preferred Signaling Format
From
MERLIN II System
MERLIN II System
Far End
Signaling
Protected
Signaling
Protected
Mode and
or
Mode and
or
To
Location
Type
Unprotected
Type Unprotected
MERLIN II
Same Site
Simplex
N/A
Simplex N/A
System or Inter- Type 5 Type 5
building
System 25
Same Site
Simplex N/A Simplex
N/A
System 75 or Inter-
Type 5 Type 5
building
System 85
Same Site
Simplex N/A
Simplex
N/A
or Inter-
Type 5
Type 5
building
Dimension
Same Site
E&M
Unprotected E&M Unprotected
PBX
Type 1
Type 1
Compatible
Standard
Dimension Inter-
E&M
Protected
E&M Protected
PBX
building
Type 1
Type 1
Compatible
standard
Other
Same Site
E&M
Unprotected
E&M
Unprotected
Type 1
Type 1
Compatible
Standard
1-50 Theory of Operation