D. OPTICAL FIBER CABLE
4. Handling precautions
(1)Protection during storage
When the electrical/optical conversion module mounted on the
printed circuit board and the optical cable are not in use, their
mating surfaces must be protected with the lid and caps with which
they are supplied. If left uncovered, the mating surfaces are likely
to become dirty, possibly resulting in a poor cable connection.
Electrical/optical conversion module Lid
Optical cable caps
Fig. D (c) Protection of electrical/optical conversion module and optical fiber cable (when not in use)
• Make sure that the bending radius and tensile strength of the cable
are always within their ranges described in the specifications (see
the first item), regardless of whether the cable is stored or routed
and whether operation is in progress or not.
• Although the reinforcing cover of the external cable has sufficient
mechanical strength, be careful not to drop heavy objects on the
• Grasp the optical connector firmly when connecting or
disconnecting the cable. Do not pull on the fiber cord itself. (The
maximum tensile strength between the fiber cord and optical
connector is 2 kg. Applying greater force to the cord is likely to
cause the optical connector to come off, making the cable
• Once connected, the optical connector is automatically locked by
the lock levers on its top. To remove the optical connector, release
the lock levers and pull the optical connector.
• Although optical connectors cannot be connected in other than the
correct orientation, always take note of the optical connector’s
orientation before making the connection.
• Before installing an external cable, fix either a wire with a hook or
a tension member to the reinforcing cover of the optical connector
and pull the wire or tension member, as shown in Fig. D (d). This
is done to prevent a tensile force from being applied between the
fiber cord and optical connector. If no tensile force is applied