DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-499DIG-LINE (Digital Line)
3
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 Enterprise Communications Server Installation
and Test for Single-Carrier Cabinet,
555-230-894.
It should be noted that TN2181 and TN2224 support both modes as shown in
Figure 3-17
and Figure 3-18.
Figure 3-17. 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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