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C. Stranded or Solid Core CAT5 Cable is OK –
For Cable lengths of up to 50 meters,
Stranded Core CAT5 Cable is OK and might be more suitable for high vibration
installations on smaller vessels. Solid Core CAT5 is also OK and should be used
on cable runs longer than 50 meters from a NavNet Display or Network Sounder to
an Ethernet Hub. Never exceed 80 Meters on a CAT5 cable run.
D. CAT5e Provides Better Interference Protection than Standard CAT5 –
Enhanced
CAT5 (CAT5e) cabling is better to use than standard CAT5 Cable and is preferred for
NavNet installations. It costs only a few cents more per foot.
E. CAT5 Cabling Should NOT be Installed in Parallel with Power Cables –
Try to run
CAT5 cabling independently from large power cable bundles, neon lights, or other
sources of EMI. Even a small separation from power cables provides enough
separation to reduce interference.
F. CAT5 Cabling Should Only Be Terminated With an RJ45 Connector –
NEVER use
any other kind of connector or normal terminal strip for CAT5 cables. The network
will simply not function if this is done. “110” Punch Down Blocks are acceptable.
Check our web resources on page 8 for more information.
RJ45 Connector Installation Notes:
A. NEVER untwist CAT5 Cable for more than 0.5 Inches When Installing RJ45
Connectors –
The twist in the wire pairs is critical for CAT5 Networks.
B. Use Quality RJ45 Crimping Tools and Thoroughly Inspect All RJ45 Crimps –
Follow the Crimping Procedures listed in our www resources for more information.
C. Only “Straight Through” Cable Sections Are Required –
When using Furuno
“Display Adapter Cables” in a multi-component NavNet System, only
“Straight Through” RJ45 terminations are utilized. Hubs use straight connections.
D. Follow only TIA/EIA-586 Wiring Standards –
This means that wire colors and pin
assignments for the RJ45 connector must be consistent throughout the network.
Follow the CAT5 Wire Pair Color and Pin Assignments listed below. Even though
only two pairs are utilized, all four pairs MUST be crimped!!
