Signamax 10/100BaseT/TX Ethernet Extender Media Converter - Manual (Page 12)

Industrial Ethernet Extender
12
When the Ethernet Extender is completely seated onto the carrier, insert
the carrier to the guide rails of the expansion slot.
Carefully slide in the carrier until it is fully and firmly fit the chassis.
Fasten the screws onto the carrier.
Never insert any Ethernet Extender into the chassis directly
without using the supplied carriers. The carriers allow secure and consistent
placement of the Ethernet Extenders into the chassis backplane without
causing any damage.