When
extendable racks are used, the bus X must be fitted with a line terminator at each end.
A line terminator is made up of a 9-pin SUB D connector and a cover containing the adaptation components. It is mounted on the 9-pin SUB D 9 connector belonging to the extendable rack at the end of the line.
Illustration:
TSX TLYEX line terminations are sold in twos and marked
A/ and
/B. The bus must be fitted with a terminator
A/ at one end and a terminator
/B at the other end in no
predefined order.