Patent ID: 7357581

Claim:
Transceiver ( 1 ) for use in a fibre optic transmission system, which is adapted for insertion into an opening in a holder ( 6 ) along a direction of insertion, which opening essentially defines a plane to which the direction of insertion is essentially perpendicular, which transceiver comprises blocking means ( 2 ) which may be moved between a blocking position in which the transceiver ( 1 ) is prevented from being pulled out from the holder ( 6 ) and a non-blocking position in which the transceiver ( 1 ) may be pulled out from the holder ( 6 ), the blocking means comprising at least two detents arranged on opposite respective sides of the transceiver, the transceiver ( 1 ) further comprising a front member ( 8 ) which may be translated between a pulled out position and an inserted position, wherein the blocking means ( 2 ) is effected by the front member ( 8 ) to be in the blocking position when the front member ( 8 ) is in its inserted position and effected by the front member ( 8 ) to resiliently move to its non-blocking position when the front member ( 8 ) is moved to its pulled out position, and the transceiver also comprising means for preventing the transceiver from being inserted too far into the holder.