Brooktrout Technology IRAS-24A w/ T1-RBS, Installation And Reference Manual

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A-10 IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
If you plan to wire the site yourself or hire a contractor, local
and national standards for telephone and electrical wiring
must be followed. Bellcore offers an ISDN Wiring and
Powering Guidelines (Residence and Small Business) Version 2
document containing detailed information on the strategies
and standards for in-house wiring.
NOTE:
The Electronic Industries Association (EIA) and
Telecommunications Industry Association (TIA) have
established standards for in-house ISDN wiring. Their
recommended minimum wiring is 8-conductor (4 pairs)
unshielded twisted-pair (UTP), Category 3 or higher,
24 gauge.
The critical component of in-house wiring is the wall jack. T1
lines typically use 8-pin modular connectors called RJ-45
jacks. To determine the type of cables and wall jacks that you
require, refer to the documentation supplied with your CSU.
The following figure shows the basic wiring required for
connecting an T1 line.
Server
CSU
Wall
Jack
Demarcation
Point
Owned by
Local Phone
To Central
Supplied with
Must wire yourself,
hire contractor, or
order as part of
service installation
Company
CSU or must
be purchased
Office
Supplied
with
Card