Instruction manual
4 - 15 
4 INSTALLATION AND WIRING 
POINTS 
(1) Be sure to connect SSCNET  cable with the above connector. If the 
connection is mistaken, between the Motion CPU module and servo amplifier 
cannot be communicated. 
(2) Forced removal of the SSCNET
 cable from the Motion CPU module will 
damage the Motion CPU modules and SSCNET
 cables. 
(3) After removal of the SSCNET
 cable, be sure to put a cap on the SSCNET  
connector. Otherwise, adhesion of dirt deteriorates in characteristic and it may 
cause malfunctions. 
(4) Do not remove the SSCNET
 cable while turning on the power supply of 
Multiple CPU system and servo amplifier. 
Do not see directly the light generated from SSCNET
 connector of Motion 
CPU module or servo amplifier and the end of SSCNET
 cable. When the 
light gets into eye, may feel something is wrong for eye. (The light source of 
SSCNET
 cable complies with class1 defined in JISC6802 or IEC60825-1.) 
(5) If the SSCNET
 cable is added a power such as a major shock, lateral 
pressure, haul, sudden bending or twist, its inside distorts or brakes, and 
optical transmission will not be available. 
Be sure to take care enough so that the short SSCNET
 cable is added a 
twist easily. 
(6) Be sure to use the SSCNET
 cable within the range of operating temperature 
described in this manual. Especially, as optical fiber for MR-J3BUS
M and 
MR-J3BUS
M-A are made of synthetic resin, it melts down if being left near 
the fire or high temperature. Therefore, do not make it touched the part which 
becomes high temperature, such as radiator or regenerative option of servo 
amplifier, or servomotor. 
(7) When laying the SSCNET
 cable, be sure to secure the minimum cable bend 
radius or more. 
(8) Put the SSCNET
 cable in the duct or fix the cable at the closest part to the 
Motion CPU module with bundle material in order to prevent SSCNET
 cable 
from putting its own weight on SSCNET
 connector. 
When laying cable, the optical cord should be given loose slack to avoid from 
becoming smaller than the minimum bend radius, and it should not be twisted. 
When bundling the cable, fix and hold it in position by using cushioning such 
as sponge or rubber which does not contain migratable plasticizing. 
If using adhesive tape for bundling the cable, fire resistant acetate cloth 
adhesive tape 570F (Teraoka Seisakusho Co., Ltd) is recommended. 










