Avaya DEFINITY Server CSI Maintenance Manual page 1022

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 27 and
TN413, TN754/B
Digital Line
Circuit Pack
Port
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Physical Connection
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Port
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Control Channel (Signaling)
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Port
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Port
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Secondary Information Channel (Data)
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Figure 27. Digital Line Connectivity
1022
Issue 5 October 2002
Figure 28 on page
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1023.
Digital
Voice
Terminal
DTDM
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Digital Line
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Data
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Terminal
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555-233-119