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(2) MELSECNET (II) and MELSECNET/10 modules
(a) Use a double-shielded coaxial cable for the MELSECNET
module which uses coaxial cables such as A1SJ71AR21,
A1SJ71LR21 and A1SJ71BR11. Noise in the range of 30 MHz
or higher in radiation noise can be suppressed by the use of
double-shielded coaxial cables (manufactured by MITSUBISHI
CABLE INDUSTRIES, LTD: 5C-2V-CCY). Earth the outer
shield to the ground.
For the shield grounding, refer to item (1).
(b) Make sure to attach a ferrite core to the double-shielded
coaxial cable connected to the MELSECNET module. In
addition, position the ferrite core on each cable near the outlet
of the control panel. The ferrite core manufactured by TDK
Corporation, ZCAT3035-1330, is recommended.
(3) Ethernet module
Precautions to be followed when AUI cables and coaxial cables are
used are described below.
(a) Always earth the AUI cables*1 connected to the 10BASE5
connectors. Because the AUI cable is of the shielded type,
strip part of the outer cover and earth the exposed shield
section to the ground on the widest contact surface as shown
below.
Shield
Earth this section
AUI cable
Shield
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