Page 7
Connecting up the GR 2400 System.
Lighting Control & Design recommends the use of pre-
made and pre-tested Ethernet style cables. These can
even be pulled through conduit with little difficulty. In
most cases the cabling does not have to be in conduit
though plenum rated cable may be required.
The Wiring diagram shown is from
www.lanshack.com
.
They are also a good supply house for off the shelf pre-
made and tested cables at a cost that is way less than
one can make them oneself.
Cable Testers
A vital tool to have is a cable tester.
This ensures that cables are verified
in the field as being hooked up cor-
rectly. (90% of field problems are
caused by incorrectly installed
cables.) If each cable is tested just
before plugging it in these problems
go away. The cable tester and
crimper kit is available from LC &D
at cost. Call 800 345 4448 and ask
for Tech support.
Cable tester and crimper
kit available from LC & D
Inspect your crimps! A damaged or Old crimper will not seat each of
the contacts evenly. Though the cable may pass the tester any tug-
ging or mechanical stress can cause problems later.
Note: The cable tester will
NOT
work if any of the wires are
plugged into any card since 3 of the wires are shorted together to
carry 12 volts and 3 are shorted to carry ground.
Pair #
1-
White/Blue
2-
White/Green
3-
White/Orange
4-
White/Brown
Wire
Pin
#
5
4
3
6
1
2
7
8
White/Blue
Blue/White
White/Green
Green/White
White/Orange
Orange/White
White/Brown
Brown/White
Wiring Scheme 568B
While the wiring scheme above is the most
commonly used wiring some jobs may have a
standard that more closely follows Telephone
company conventions Data hook up of 568A.
(which transposes the Green and Orange pairs)
This can also be used as long as both ends of
the cable are
ALWAYS
the same.
13