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5.2 Precautions when Installing the Coaxial Cables
5.2.1 For the Coaxial Loop Type
1) The distance between station is different depending on the kind of the
coaxial cable used.
Type
Distance between stations (m)
Total extension distance (km)
3C-2V
300 (984.3ft.)
19.2 (62995.2ft.)
5C-2V
500 (1640.5ft.)
30 (98430ft.)
2) When connecting a coaxial cable, the following restrictions on the bending
radius must be observed.
Cable type
Allowable
bending radius
r[mm(in.)]
Connector
A[mm(in.)]
3C-2V
23 (0.91)
5C-2V
30 (1.18)
35 (1.38)
r
Module front
A
3) The Coaxial cable is wired in the following manner.
There is no problem even if not wiring in order of the station number.
There is no problem even if station how many become control station.
AJ71QLR21
IN
OUT
F-SD
R-SD
R-RD
F-RD
AJ71QLR21
IN
OUT
F-SD
R-SD
R-RD
F-RD
AJ71QLR21
IN
OUT
F-SD
R-SD
R-RD
F-RD
Control station
Station number 1
Normal station
Station number 2
Normal station
Station number 3
4) Install the coaxial cables at least 100 mm (3.94 in.) away from other power
cables and control cables.
5) Consider wiring using double-shielded coaxial cable in places that are
subject to large amounts of noise.
Double shielded coaxial cable
Mitsubishi Cable...5C-2V-CCY
Grounding
