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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.
Use the following high frequency coaxial cables:
• 3C-2V (JIS C 3501 compliant)
• 5C-2V (JIS C 3501 compliant)
• 5C-FB (JIS C 3502 compliant)
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.
Select coaxial cables that meet the operating ambient temperature (0 to 55
C
)
listed in the general specifications of the programmable controller.
Table 3.4 Coaxial cable specifications
Item 3C-2V 5C-2V 5C-FB
Structure
Internal
conductive
material
Insulating
material
External
conductor
Outer
Sheath
Cable diameter 5.4 mm (0.21 in.) 7.4 mm (0.29 in.) 7.7mm (0.3in.)
Minimum allowable bend radius 22 mm (0.87 in.) or more 30 mm (1.18 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) 1.05mm (0.04 in.) (annealed copper wire)
Insulating material diameter 3.1 mm (0.12 in.) (polyethylene) 4.9 mm (0.19 in.) (polyethylene) 5.0mm (0.2 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)
5.7mm (0.22 in.)(aluminum foil tape and
annealed copper wire mesh)
Applicable connector plug
3C-2V connector plug
The following connector plugs are
recommended:
• BNC-P-3-NiCAu
*1
(Manufactured by DDK Ltd.)
• BCP-C3B
*2
(Manufactured by Canare Electric Co.,
Ltd.)
5C-2V connector plug
The following connector plugs are
recommended:
• BNC-P-5-NiCAu
*1
(Manufactured by DDK Ltd.)
• BCP-C5B
*2
(Manufactured by Canare Electric Co.,
Ltd.)
5C-FB connector plug
BCP-C5FA
*2
(manufactured by Canare
Electric Co., Ltd.) is recommended.
1: This connector plug is a soldering-type connector plug.
2: This connector plug is a crimping-type connector plug.
REMARKS
To order or for inquiries regarding connector plugs and coaxial cables, please
consult your local Mitsubishi representative.