Inter-Tel AXXESS Manual page 203

A. RUNNING CABLE
6.6 The station cable is connected to the MDF at one end, and a modular connecting block
at the other end. The modular line cord of the telephone is then plugged into the connecting
block.
•
For devices connected to an EKSC: From the MDF location, run industry standard,
two-pair (four-conductor) twisted (24AWG, level-1 or better/24 gauge thickness or
larger -- smaller number gauge = larger thickness) cable to Executone IDS and Wave
phones connected to each EKSC. Both pair of wires are required for the telephone to
function. One pair transmits digitized voice information and control signals from the
system to the telephone. The other pair receives digitized voice information and control
signals from the telephone.
NOTE:
•
For devices connected to an AKSC: From the MDF, run industry standard, three-pair
(six-conductor) twisted (24AWG, level-1 or better/24 gauge thickness or larger --
smaller number gauge = larger thickness) cable to analog phones.
•
For devices connected to an DKSC or SLC: From the MDF location, run industry
standard, one-pair (two-conductor) twisted (24AWG, level-1 or better/24 gauge thick-
ness or larger -- smaller number gauge = larger thickness) cable to the digital phones,
single-line phones, and playback devices connected to each DKSC, DKSC-16, or SLC.
NOTE:
jack units) may be used for all station connections. This allows the various types of station
instruments to be easily interchanged, if necessary. (If three-pair cable is used with a U.S. sys-
tem, extra terminal blocks and the use of cross-connect wiring techniques are required.)
6.7 Follow these guidelines:
•
Install proper type cable for the application according to the National Electrical Code
and local building codes [BS 6701 in Europe].
•
Avoid cable runs parallel to fluorescent light fixtures or AC lines not in conduit. If these
obstacles are unavoidable, run the cables across them at right angles.
•
Do not run station cables inside electrical conduit already occupied by AC power cable.
(To do so is a violation of the National Electrical Code or BS 6701.)
•
Do not run cables near equipment with electric motors or through strong magnetic
fields, such as those generated by large copy machines, arc welding equipment, heavy
motors, etc.
•
Do not place station cables where they can be stepped on or where they can be rolled
over by office furniture.
•
If using multi-pair (e.g., 25-pair) cable runs to multiple station locations, do not include
AC-ringing single-line sets, AC-ringing auxiliary equipment, or trunks in a cable being
used for analog or Executone phones. Stations using analog phone circuits should be
routed in separate multi-pair cable runs.
•
Do not exceed the loop limit measurements (using 24AWG, 24 gauge thickness or
larger -- smaller number gauge = larger thickness) for the station cable lengths as out-
lined in the table on
the distance values (in feet/meters) are the maximum one-way measurements from the
equipment chassis.
Running Cable
INTER-TEL
EKSCs are not supported in Europe.
If desired, two- or three-pair twisted cable and four- or six-conductor modular jacks (line
page 3-69. The resistance values (in ohms) are loop measurements;
® ®
AXXESS MANUAL VERSION 11.0 – May 2008
Installation
3
Page 3-17