3Com NBX 100 Installation Manual page 175
3com nbx 100: installation guide
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Also See for NBX 100:
- Administrator's manual (482 pages) ,
- Installation manual (306 pages) ,
- Manual (76 pages)
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RJ21x Wiring for North America
175
models, and incorrect connection may result in damage to cards and/or
phones.
Legacy Link Cards use only the first 16 pairs of wires of the 25-pair cable
for the handsets. The remaining pairs have no connection and are not
used.
Figure 38 Line Connector (RJ21x) Wiring for North America
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