NeXGen
Wayne Direct - Gilbarco / Installation and Start Up Guide
Copyright
2019 by Allied Electronics, Inc.
December 31, 2019
Page
1-2
1.2.2.3 Execution
a. Maintain the natural twist of the cable.
i. The cables have four pairs of twisted wires that can very easily lose their ability to
reject electromagnetic interference when unraveled.
ii. Pay-out cable from spools so that the spool rotates.
b. Avoid kinking and over-stressing the cable.
i. Kinks not only pick up interference, but can cause the jacket to chafe and internal
conductors to break.
ii. Never exert more than 25 pounds of tension when pulling a communications cable.
c. Provide a generous bend radius whenever the cable turns a corner.
i. Never bend the cable more than 90 degrees.
ii. Limit the bend to a 3 inch radius.
iii. Use a 1 pound coffee can as a guide.
d. Support all cabling in both horizontal and vertical planes.
i. Unsupported horizontal cable runs, especially above drop ceilings, are problematic.
ii. In the event that cable trays are not available, the cabling can be secured with zip-ties,
hook clips, J-hooks, or plastic coated staples provided they are spaced no greater than
2’ apart.
iii. Do not use utility piping or drop ceiling grid-work to secure or support communications
cables.
e. Protect the cable from mechanical damage and install appropriate fire blocking whenever
cables pass through floors or walls.
f.
Install carefully all zip-ties ensuring that they do not bite into the cable through excessive
force.
g. Label both ends of all cables.
h. Use the proper punch down tool and ensure it is set properly.
i. Remove as little of the jacket as possible.
ii. Untwist the conductors as little as possible.
1.2.2.4 Testing
a. Inspect thoroughly all cables for damage after they are pulled and before they are bundled or
otherwise secured.
b. Perform a continuity test of all pairs.