3 - 4 3 - 4
MELSEC-Q
3 SPECIFICATIONS
3.1.4 Coaxial cable specifications
The following table lists the specifications of the coaxial cables used for the coaxial bus
system.
The high frequency coaxial cable "3C-2V" or "5C-2V" (conforms to JIS 3501) is used.
However, when configuring a multiplexed remote I/O network for redundant system,
use a double shield coaxial cable. (Refer to section 4.8.2.)
(1) Coaxial cable specifications
The specifications of the coaxial cable are shown in Table 3.4.
Table 3.4 Coaxial cable specifications
Item 3C-2V 5C-2V
Structure
Internal
conductive
material
Insulating
material
External
conductor
Outer
Sheath
Cable diameter 5.4 mm (0.21 in.) 7.4 mm (0.29 in.)
Minimum allowable bend radius 22 mm (0.87 in.) or more 30 mm (1.18 in.) or more
Internal conductor diameter 0.5 mm (0.02 in.) (annealed copper wire) 0.8 mm (0.03 in.) (annealed copper wire)
Insulating material diameter 3.1 mm (0.12 in.) (polyethylene) 4.9 mm (0.19 in.) (polyethylene)
External conductor diameter 3.8 mm (0.15 in.) (single annealed copper wire mesh) 6.6 mm (0.26 in.) (single annealed copper wire mesh)
Applicable connector plug
3C-2V connector plug
(BNC-P-3-Ni-CAU is recommended.)
5C-2V connector plug
(BNC-P-5-Ni-CAU is recommended.)
REMARK
Consult the nearest Mitsubishi representative with connector plugs.