| 摘要 |
PROBLEM TO BE SOLVED: To provide a pluggable module having no possibility of being erroneously inserted, and to provide a pluggable module system. SOLUTION: The pluggable module includes a transmitter which transmits a signal by transforming a first transmission rate to a second transmission rate and a receiver which transforms a received signal of the second transmission rate to the first transmission rate, wherein the transmitter, the receiver and a host apparatus are connected by inserting the pluggable module into the host apparatus and the erroneous insertion is prevented because the pluggable module is provided with a convex first erroneous connection preventing part and a concave second erroneous connection preventing part on a face perpendicular to the insertion direction. COPYRIGHT: (C)2009,JPO&INPIT
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