The 16 Input modules require a 20-way removable terminal block or a pre-formed cordset with a 20-way removable terminal block at one end and flying leads at the other
The 32 and 64 Input modules require a one or two pre-formed cordset（s） with a 40-way connector
A pushbutton on the 64-channel module can, with successive presses display channels 0 to 31 or 32 to 63 on the block
Modicon M340 Digital Input
BMX discrete I/O modules are standard format （1 slot）
They have a case, which ensures IP20 protection of the electronics, and are locked into postion by a captive screw.
