User`s guide

A-2 Appendix A
Mechanical Differences
The FTT-10A transceiver is an encapsulated assembly whereas the FTT-10
transceiver has open frame construction. Table A.1 compares mechanical dimensions
of the FTT-10 and FTT-10A transceivers. As shown in figure A.1, the FTT-10A
transceiver is roughly half the height of the FTT-10 transceiver and slightly smaller
in width. The maximum length of both products is identical, however, the pin grid is
shifted a bit with respect to the shorter edges as illustrated in figure A.2. The edge
common to the NET_A and NET_B pins extends farther in the FTT-10A transceiver
than in the FTT-10 transceiver. If the FTT-10A transceiver is placed on a PC board
designed for the FTT-10 transceiver, there may be mechanical interference with
components located adjacent to the NET_A/ NET_B edge of the FTT-10A transceiver.
Table A.1 Mechanical Dimensions Comparison
mm inches
FTT-10 FTT-10A FTT-10 FTT-10A
Height maximum 14.1 7.2 0.56 0.28
Width maximum 15.2 13.7 0.60 0.54
Length maximum 17.8 17.8 0.70 0.70
Datum to NET_A/ NET_B Edge
nominal
maximum
15.1
not specified
15.7
16.2
0.59
not specified
0.62
0.64