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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-424DIG-LINE (Digital Line)
10
the primary information channel. Figure 10-26 shows examples of digital line
connectivity.
Only the TN754B or TN2136 should be used in out-of-building applications. For
important information pertaining to protection required for out-of-building digital
voice terminals, see
DEFINITY Communications System Generic 1 and Generic 3
Installation and Test,
555-230-104.
It should be noted that TN2181 and TN2224 supports both modes as shown in
Figure 10-26 and Figure 10-27.
Figure 10-26. Digital Line Connectivity
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TN413, TN754/B
Digital Line
Circuit Pack
Port
Port
Port
Port
Secondary Information Channel (Data)
DTDM
Digital
Voice
Terminal
Control Channel (Signaling)
Primary Information Channel (Voice)
Physical Connection
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Digital Line
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Data
Terminal
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