Mitsubishi Electric MELSEC Q Series Reference Manual page 142

4 SETTING AND PROCEDURE BEFORE OPERATION
Turn OFF the power.
Push the plug in until the plug fixing hole
catches the hook of the jack.
Pull the plug lightly in the direction of the
arrow to make sure that it is securely
connected.
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(2) Cable connection
(a) How to connect the cable
Note that there is no need to connect the cables in the order of station
numbers.
Set the station number of the remote master station to 0.
a - 1) QJ71LP21-25 - QJ72LP25-25, QJ71LP21G - QJ72LP25G
Remote master station
Station
No. 0
QCPU QJ71
LP21
IN OUT
a - 2) QJ71LP21GE - QJ72LP25GE
Remote master station
QJ71LP21GE
SD
IN
RD
SD
OUT
RD
Optical module
(b) Installing the optical fiber cable
The following are how to install the optical fiber cable:
Installation
Complete
Remote I/O station
Station
No. 1
QJ72
LP25
IN OUT
Remote I/O station
QJ72LP25GE
RD
IN
SD
RD
OUT
SD
Optical fiber cable
Network module
Groove
MELSEC-Q
Remote I/O station
Station
n  64
No. n
QJ72
LP25
IN OUT
Remote I/O station
QJ72LP25GE
RD
IN
SD
RD
OUT
SD
Jack
Projection
Plug
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