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M800VW/M80VW Series Connection and Setup Manual
6 Precautions for Connecting
6.1 Precautions for Wiring
Precautions for laying optical communication cable
(1) Do not apply a force exceeding the cable's tolerable tension. Binding the cables too tight with tie-wraps could result in an
increased loss or a disconnection. Use a cushioning material such as a sponge or rubber when bundling the cables and
fix so that the cables do not move.
(2) Do not connect the cables with a radius less than the tolerable bending radius. Excessive stress could be applied near
the connector connection section and cause the optical characteristics to drop. The cable bending radius should be 10
times or more than the outer diameter at the reinforced sheath, and 20 times or more than the outer diameter at the fiber
cord section.
(3) Do not apply torsion to the optical communication cable. Laying a twisted cable could cause the optical characteristics to
drop.
(4) When laying the cables in a conduit, avoid applying stress on the fiber cord and connector connection section. Use the
tensile end such as a pulling eye or cable grip, etc.
(5) Fix the reinforced sheath with a cable clamp so that the mass of the optical communication cable is not directly applied on
the fiber cord and connector connection section.
(6) Never bundle the cables with vinyl tape. The plasticizing material in the vinyl tape could cause the POF cable to break.
(7) Loop the excessive cable with twice or more than the minimum bending radius.
Optical communication cable
(section with reinforced sheath):
Bending radius: Refer to the specification of
Clamp material for reference:
KITAGAWA INDUSTRIES CKN-13SP
6.1.3 Precautions for Connecting 24 V Power Supply
(1) Be careful when 24 V power is supplied to the unit under the following conditions as inrush current may weld the contacts
in place.
When 24 VDC power is directly controlled ON/OFF by a relay or other magnetic switch AND When heat capacity is low
for the contacts of the magnetic switches used to control 24 VDC power
IB-1501612-C
Control unit
Optical communication cable
(section without reinforced sheath):
Bending radius: Refer to the specification
of your optical
communication cable.
your optical communication cable.
232
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