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Samsung Sam4S SPS-340 Manual

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280 • IRC (Inter-Register Communications) Appendix SAM4s SPS-300 Operator's & Programming Manual v1.4
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Ethernet Cable Termination Instructions
1. Pull the cable off the reel to the desired length and cut. If you are pulling cables
through holes, it is easier to attach the RJ-45 plugs after the cable is pulled. The total
length of wire segments between an SPS-2000/SPS-5X0 and a switch or between two
ECRs cannot exceed 100 Meters (328 feet).
2. Start on one end and strip the cable jacket off (about 1") using a stripper or a knife.
Be extra careful not to nick the wires, otherwise you will need to start over.
3. Spread, untwist the pairs, and arrange the wires in the order of the desired cable end.
Flatten the end between your thumb and forefinger. Trim the ends of the wires so
they are even with one another, leaving only 1/2" in wire length. If it is longer than
1/2" it will be out-of-spec and susceptible to crosstalk. Flatten and insure there are no
spaces between wires.
4. Hold the RJ-45 plug with the clip facing down or away from you. Push the wires
firmly into the plug. Inspect each wire is flat even at the front of the plug. Check the
order of the wires. Double check again. Check that the jacket is fitted right against
the stop of the plug. Carefully hold the wire and firmly crimp the RJ-45 with the
crimper.
5. Check the color orientation. Check that the crimped connection is not about to come
apart, and check to see if the wires are flat against the front of the plug. If even one of
these is incorrect, you will have to start over. Test the Ethernet cable.
Ethernet Cable Tips
A crossover is used to connect two Ethernet devices without a switch.
A crossover has one end with the Orange set of wires switched with the Green set.
Odd numbered pins are always striped, even numbered pins are always solid colored.
Looking at the RJ-45 with the clip facing away from you, Brown is always on the
right, and pin 1 is on the left.
No more than 1/2" of the Ethernet cable should be untwisted otherwise it will be
susceptible to crosstalk.
Do not deform, do not bend, do not stretch, do not staple, do not run parallel with
power cables, and do not run Ethernet cables near noise inducing components.
Routing Communication Cable
Communication cable must be kept a minimum of one (1) foot away from AC wiring or
fluorescent lighting and at least five (5) feet away from large transformers or motors. If
the communication cable must cross AC wiring, it must cross at a 90 angle to the AC
wiring.
Metal Conduit should be used wherever there is a chance of damage to the wire
including telephone rooms and basements (where rodents could pose a problem). This
conduit should be attached to the building ground not the isolated ground.
Communications cable must NOT be placed alongside or in the same conduit as AC
power or telephone signals.
The bending radius on CAT 5e UTP or STP cable is to be a minimum of 1 inch.
… 280 …


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