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41
Optical Ring System (GI Cable) Wiring
Section 2-3
2-3
Optical Ring System (GI Cable) Wiring
This section describes how to wire the communications cables to a GI cable
Ring System Controller Link Support Board (3G8F7-CLK53-E and 3G8F7-
CLK52-EV1).
2-3-1
Communications Cables
The following devices are required for the Optical Ring (GI) Controller Link
Network.
Optical Fiber Cables
Use Optical Fiber Cables (Graded Index: GI) with the following optical specifi-
cations.
50/125
μ
m AGF Cable
Note
L
f
is fiber length in km, T
a
is ambient temperature, and
λ
is the peak wave-
length of the test light source.
62.5/125
μ
m AGF Cable
Note
L
f
is fiber length in km, T
a
is ambient temperature, and
λ
is the peak wave-
length of the test light source.
Connectors
ST Connector
Item
Minimum
Standard
Maximum
Unit
Conditions
Numerical Aper-
ture (N.A.)
---
0.21
---
---
Theoretical value
Transmission
loss
---
---
3.0 Lf
dB
0.5 km
≤
Lf
λ
= 0.8
μ
m
T
a
= 25
°
C
3.0 Lf + 0.2
0.2 km
≤
Lf < 0.5 km
3.0 Lf + 0.4
Lf < 0.2 km
Connection loss ---
---
1.0
λ
= 0.8
μ
m, one location
Transmission
bandwidth
500
---
---
MHz
⋅
km
λ
= 0.85
μ
m (LD)
Item
Minimum
Standard
Maximum
Unit
Conditions
Numerical Aper-
ture (N.A.)
---
0.28
---
---
Theoretical value
Transmission
loss
---
---
3.5 Lf
dB
0.5 km
≤
Lf
λ
= 0.8
μ
m
T
a
= 25
°
C
3.5 Lf + 0.2
0.2 km
≤
Lf < 0.5 km
3.5 Lf + 0.4
Lf < 0.2 km
Connection loss ---
---
1.0
λ
= 0.8
μ
m, one location
Transmission
bandwidth
200
---
MHz
⋅
km
λ
= 0.85
μ
m (LD)
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
Page 187: ......