Clear-Com Eclipse-Omega - Manual (Page 33)

Clear-Com Communication Systems
Eclipse Matrix Installation Instruction Manual 4 - 3
not being removed from a pre-made cable this will not be a problem.
Be aware that if the ends are removed from a pre-made cable to
shorten or to punch onto blocks, pair 2 and 3 colors may be different.
Caution: Make sure the type of RJ-45 connector matches the wire
type. Connectors are available for both stranded and solid
wire. Clear-Com intercom panels do not require keyed
connectors. Please refer to the following list for connector
vendor and port numbers.
Clear-Com recommends that all cables are thoroughly tested before
connecting them.
The following products are recommended as possible sources for
cables, connectors and tools:
• Crimper - Siemon PT908 or AMP 2-231652-1 with 853400-1 dies
• Stripper - Siemon CPT
• Tester - Siemon STM-8
• Connector RJ-45 Shielded 26-22 AWG Stranded or Solid RJ-45 -
Siemon PS-8-8
• CINCH FA-25PS/1-LF 25W D-type in-line 1000pF filter (UK supplier:
Farnell 111-4108)
• Ferrite - Würth Electronik part: 74271132
Installing RJ-45 Connectors
RJ-45 connectors can be a challenge to install correctly unless some
of the following techniques are followed. Like most wiring skills, once
the “tricks” are known it is fairly easy. It is very strongly suggested that
the work is tested with a cable checker.
The technique that will transform this task from tedious to easy is
described next. The main hurdle in putting RJ-45 connectors on
correctly is the tendency of the wires to slip out of the correct order as
the prepared cable end is inserted into the connector. To avoid this
problem, try the following:
1. Strip enough jacket off the cable to be able to grasp the wires and
pull the jacket back.
2. Untwist the wires and pull them into the correct order and let the
jacket slip back to hold them in place.
If this is done correctly, the wires will stay in the correct order. Trim
exposed wires to about 9/16 in. (14.28mm) and install into the
connector.
The more detailed step-by-step instructions are:
1. Strip off enough of the outside vinyl jacket to be able to grip the
wires inside easily (2 in. or 50.8 mm). While holding the four twisted
pairs in one hand, slide back the vinyl jacket and clamp it between