⎯ 122 ⎯
6 F 2 S 0 8 5 7
CAUTION
• Before removing a module, ensure that you are at the same electrostatic potential as the
equipment by touching the case.
• Handle the module by its front plate, frame or edges of the printed circuit board. Avoid
touching the electronic components, printed circuit board or connectors.
• Do not pass the module to another person without first ensuring you are both at the same
electrostatic potential. Shaking hands achieves equipotential.
• Place the module on an anti-static surface, or on a conducting surface which is at the same
potential as yourself.
• Do not place modules in polystyrene trays.
It is strongly recommended that detailed investigations on electronic circuitry should be carried
out in a Special Handling Area such as described in the IEC 60747.
5.5 External Connections
External connections are shown in Appendix G.
Note: In wire connections of terminal block for type A case, the following connections are
recommended because a communication port is located between terminal blocks.
Communication port
(LAN port)
Wire
Relay
Top View
Wire
Terminal
block
Figure 5.5.1 Example of Wire Connection
