Passive Components for RS-485 Networks
Figure 4-13
Fitting the LAN Cables in the FastConnect Bus Connector 6ES7972-0B.50-0XA0
Figure 4-14
Fitting the LAN Cables in the FastConnect Bus Connector 6G1500-0FC00
PROFIBUS Networks SIMATIC NET 6GK1970-5CA20-0AA1 Release 2 05/2000
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Passive Components for RS-485 Networks
4.2.3
Using the FastConnect Stripping Tool for Preparing FC Cables The steps required to strip a cable are illustrated using the using the FastConnect bus connector with a 90° cable outlet 6ES7972-0BB50-0XA0. They apply analogously to the FastConnect bus connector with a 180° cable outlet 6GK1500-0FC00.
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1. How to hold the stripping tool in the right hand
2. Measure the length to be stripped by holding the cable against the template. Mark the position using the index finger of your left hand.
3. Insert the measured end of the cable into the tool as far as allowed by the index finger of the left hand.
4. Clamp the end of the cable in the stripping tool.
5. Turn the tool four times in the direction of the arrow for PVC insulation (eight times for PUR or PE insulation).
6. Keeping the tool closed, remove it from the end of the cable. If the cut is poor, change the blade cassette.
7. Remnants remain in the tool. After opening the tool, the remnants of the cable can be removed.
8. Remove the protective layer from the cores.
9. Fit the FastConnect cable into the connector.
PROFIBUS Networks SIMATIC NET 6GK1970-5CA20-0AA1 Release 2 05/2000
Passive Components for RS-485 Networks
A1, B1
Switch
Switch
“ON”
“OFF”
A2, B2
Incoming cable A1, B1 Outgoing cable A2, B2 Terminating resistor with disconnect function
When you use the connector at the end of a segment, set the switch to “ON” (disconnect function)
When you use the connector within a segment, set the switch to “OFF”.
1
2 1. Undo the screw of the strain relief.
2. Turn back the strain relief clamp.
3. Lift the contact cover.
4. Fit the incoming cable into the contact cover labeled A1, B1 (remember to keep the color coding consistent).
5. Press down the contact cover firmly.
6. If you use the connector within a segment, fit the outgoing cable into the contact cover labeled A2, B2.
2
1 7. Press down the contact cover firmly.
PROFIBUS Networks SIMATIC NET 6GK1970-5CA20-0AA1 Release 2 05/2000
8. Turn back the strain relief clamp.
9. Tighten the screw of the strain relief clamp.
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