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57
Optical Wiring
Section 3-3
4.
Duplex operation of Communications Units is not possible in token-bus
mode.
5.
Online replacement is possible in CS1D Systems but if token-bus mode is
used there is a possibility of the network splitting.
Optical Ring System
(Token-ring Mode) without
Duplex Operation
All of the nodes in the network are connected in a ring with GI Optical Fiber
Cable. The cables must be connected as shown in the following diagrams.
An identifying label is printed on one of the cables in each pair, so that the
cables can be told apart. If the Units are connected incorrectly, the situation
can be misinterpreted as a disconnection and unpredictable operation may
result.
Although there is no fixed order in which the nodes must be connected, in
order to minimize the effect on communications time in the event of a discon-
nection, it is recommended that they be connected in node address order
(node 1
→
node 2...
→
node 62
→
node 1) whenever possible.
See 1-2-6 Devices Required for Connection for details on available GI Optical
Fiber Cables.
Note
1.
Always use the specified Optical Fiber Cables.
2.
The maximum distance between nodes depends on the type of GI cable
(core diameter) that is being used.
62.5/125
µ
m cable: Max. distance between nodes = 2 km
50/125
µ
m cable: Max. distance between nodes = 1 km
Optical Ring System
(Token-ring Mode) with
Duplex Operation
All of the nodes in the network (including standby Units) are connected in a
ring with GI Optical Fiber Cable. The cables must be connected as shown in
the following diagrams.
An identifying label is printed on one of the cables in each pair, so that the
cables can be told apart. If the Units are connected incorrectly, the situation
can be misinterpreted as a disconnection and unpredictable operation may
result.
Although there is no fixed order in which the nodes must be connected, in
order to minimize the effect on communications time in the event of a discon-
nection, it is recommended that they be connected in node address order
(node 1
→
node 2...
→
node 62
→
node 1) whenever possible.
Higher SL2 "Receive"
Higher SL2 "Transmit"
Lower SL1 "Receive"
Lower SL1 "Transmit"
←
Higher
Lower
→
Receive
Tran-
smit
Receive
Transmit
Receive
Transmit
Receive
Transmit
Receive
Transmit
Receive
Tran-
smit
Higher SL2 "Receive"
Higher SL2 "Transmit"
Lower SL1 "Receive"
Lower SL1 "Transmit"
Summary of Contents for CS1W-CLK12-V1
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 11: ...xii ...
Page 59: ...42 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 62: ...45 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 91: ...74 CVM1 and CV series Optical Ring Controller Link Units Section 4 2 ...
Page 108: ...91 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 125: ...108 Checking Data Link Status Section 5 4 ...
Page 181: ...164 Setting Routing Tables Section 7 4 ...
Page 199: ...182 Memory Areas Related to Duplex Operation Section 8 6 ...
Page 275: ...258 Handling Precautions Section 10 7 ...
Page 298: ...281 CS series Optical Bus Controller Link Units Appendix C Dimensions Unit mm 101 35 130 ...
Page 299: ...282 CS series Optical Bus Controller Link Units Appendix C ...