FIBRe OPtIC CaBlING aND hUBS

In document PS501 User's Manual. MANPS501 Revision 1 (Page 73-77)

Fibre optic cabling consists of a centre plastic core surrounded by a layer of protective material. This cable transmits light rather than electric signals and therefore is immune to electrical, lighting and moisture interference.

When installing, run the cable through conduit. It may be paired together with the high voltage wires. The maximum cable length between a machine and hub is

Fibre Optic Hub Fibre Optic Cable

FIBRE OPTIC HUB POWER SUPPLY WIRING (ACDC or Condor POWER SUPPLY)

LINE VOLTAGE 120 220 230/240 CONNECT 1+2 2+3 2+3 TOGETHER 3+4 LINE 1+4 1+5 1+4 CONNECTION TERM . COLOUR 1 RED 2 YELLOW 3 BLUE 4 BLACK 5 ORANGE PB 4839 Circuit Breaker Power Supply Hub closed Hub Master Poller Cable Machines

326 feet (100 m). The fibre optic cables are terminated with Jamesway duplex connectors at both ends (part number PT1888).

Fibre optic hubs will require a separate 115V/230V power circuit although several hubs can share the same circuit. Since fibre optic cables are not susceptible to electrical or moisture interference, the hub can be mounted on the wall, ceiling, hallway or the top of a machine.

GeNeRal INStallatION GUIDelINeS

The following are general guidelines for cable instal- lation:

• Always use more cable than you need. Leave plenty of slack.

• Fibre optic cables may run in the same conduit as the high voltage wires.

• When deciding the location of the hubs, pick a location that minimizes the amount of cable used. • Hubs should be located where they can be easily

serviced.

• Test every part of the network as you install it. If you do not, it may be difficult to isolate the problem later.

• Always run cable through a conduit for protection. • Label both ends of each cable.

• Try to avoid tywrapping cables to the outside of a power conduit.

• Use cable ties (not tape) to keep cables together in the same location.

• Do not use staples to fasten data cables.

• If not all connectors are used inside a fibre optic hub, leave any extra connectors and polishing paper inside for hatchery expansion.

Duplex Connector (PT1888) Cable and Crimping Ring

When joining connectors and cable, cable orientation can be either/or.

Tab facing up

or

Text facing up on the left or right hand side of the two (2) strand cable

Fibre Optic Netw

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POlIShING INStRUCtIONS

Polishing is an essential procedure for all cable con- nections. A connection is not ready for use until the following steps have been carried out. Long cables must be polished extra carefully to ensure reliable communication.

Step 1—The zip cord structure of the duplex cable

permits easy separation of the channels. The channels should be separated approximately 2.0 inches (50 mm) back from the end to permit connecting and polishing. After cutting the cable to the desired length, strip off approximately 0.3 inches (7 mm) of the outer jacket with 16 gauge wire strippers. Excess webbing on du- plex cable may have to be trimmed to allow the duplex connector to slide over the cable. The separated duplex cable must be stripped to equal lengths on each cable. This allows easy and proper seating of the cable into the duplex connector.

Step 2—Place the crimp ring and the connector over

the end of the cable; the fibre should protrude about 0.12 inches (3 mm) through the end of the connector. Carefully position the ring so that it is entirely on the connector with the rim of the crimp ring flush with the connector, leaving a small space between the crimp ring and the flange. Then, crimp the ring in place with the crimping tool.

Step 3—Any excess fibre protruding from the fibre

end may be cut off. However, the trimmed fibre should extend at least 0.06 inches (1.5 mm) from the connect- ing end. Insert the connector fully into the polishing fixture with the connector end protruding from the bottom of the fixture.

Place the 600 grit abrasive paper on a flat smooth surface. Pressing down on the connector, polish the fibre and the connector using a figure eight pattern of strokes until the connector end is flush with the end of the polishing fixture. Wipe the connector and fixture with a clean cloth or tissue.

Step 4—Place the flush connector and the polishing

fixture on the dull side of the 3 micron pink lapping film. Continue to polish the fibre and connector for approximately 25 strokes. The cable is now ready for use.

Placement of crimp ring

Polishing Equipment

Polish in a figure eight pattern

Note: The four dots, on the bottom of the

polishing fixture, are wear indicators. Replace the polishing fixture when any dot is no longer visible.

Note: Use a clean cloth or tissue to wipe the

end of the fibre optic cable. Do not wipe with your hands.

Duplex Crimping Ring

600 Grit Abrasive Paper 3 µm Lapping Film Polishing Fixture Polishing Paper Polishing Fixture

SPlICING INStRUCtIONS

Cables longer than 100 feet (30 m) should not be spliced because it will create a signal reduction that may cause a loss of communication. If a long cable needs to be repaired, install a new cable segment.

Step 1—Separate the duplex cable approximately

2.0 inches (50 mm) back from the end to permit connecting and polishing. Strip off approximately 0.30 inches (7 mm) of the outer jacket with 16 gauge wire strippers. Excess webbing on the duplex cable may have to be trimmed to allow the connectors to slide over the cable.

Step 2—Place the crimp ring and simplex connector

over the end of the cable. The fibre should protrude about 0.12 inches (3 mm) through the end of the con- nector. Carefully position the ring so that it is entirely on the connector and then crimp the ring in place with the crimping tool.

Step 3—Any excess fibre protruding from the fibre

end may be cut off. However, the trimmed fibre should extend at least 0.06 inches (1.5 mm) from the connecting end. Insert the connector fully into the polishing fixture with the connector end protruding from the bottom of the fixture. Place the 600 grit abrasive paper on a flat smooth surface. Pressing down on the connector, polish the fibre and the connector until the connector end is flush with the end of the polishing fixture. Wipe the connector and fixture with a clean cloth or tissue.

Step 4—Place the flush connector and the polishing

fixture on the dull side of the 3 micron pink lapping film and continue to polish the fibre and connector for approximately 25 strokes. The fibre end should be flat, smooth and clean.

Simplex Connector and Cable

Step 1: Ensure correct measurements.

Step 2: Slide the cable into the crimp ring and simplex connector.

Step 3: The trimmed fibre should extend at least 0.06 inches (1.5 mm) from the connecting end.

Step 4: Polish in a figure eight pattern. Splicing completed, insert simplex connectors into

the bulkhead.

Note: Do not wipe the fibre ends with your

fingers.

Simplex Blue Connector PT200

Blue text facing up on the left hand or right hand side of the two (2) stand cable

2.00 inches (50 mm) 0.30 inches (7 mm) PT1969 Crimp Ring Crimp Ring 0.06 inches (1.5 mm) minimum extension Polishing Paper Polishing Fixture

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tROUBleShOOtING CaBle PeRFORMaNCe

If you are experiencing connection problems, check the following:

• Are all cable connections secure? Any connectors that are not plugged in may introduce ambient light into the system, which in turn disrupts com- munication.

• Were the connectors properly terminated and polished? If necessary, cut off ends and re-polish connectors. Long cables must be polished extra carefully to ensure reliable communication.

In document PS501 User's Manual. MANPS501 Revision 1 (Page 73-77)