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5.4 Wiring
5.4.1 Optical fiber cable
5
PREPARATORY PROCEDURES BEFORE
OPERATION
5.4 Wiring
This section describes precautions for connecting and wiring cables.
5.4.1 Optical fiber cable
The following describes how to connect an optical fiber cable with the local module.
(1) Precautions for wiring
(a) Securing of wiring space
When an optical fiber cable is connected with the local module, a cable bend
radius is restricted.
For details, check the specifications of the cable to be used.
(b) Laying an optical fiber cable
When laying an optical fiber cable, do not directly touch an optical fiber core of a
plug or jack, and prevent dirt or dust from attaching it.
If oil from hand, dirt, or dust is attached, transmission loss may increase, resulting
in failure at data link.
In addition, do not remove the cover from a connector of the module before
installing an optical fiber cable.
(c) Connecting/disconnecting an optical fiber cable
Be sure to shut off all phases of the external power supply used by the system.
(2) Connection of cable
(a) Connection method
An optical fiber cable connects OUT and IN as shown below. (OUT of the last
station is connected to IN of the master station.)
Figure 5.5 Connection method
OUT IN OUT IN
Front
OUT IN
Fron
t
Front
Master station
Slave station
No.1
Station
No.02
Station
No.01
Station
No.00
Slave station
No.2