TDC Logic Board

The MTI relay logic system consists of two components:
the 81093 relay board, which contains 8 mechanical
relays with diodes necessary for lamp test,
and the din rail mounted logic board, part #81094.
The 81094 logic board has a total of 8 inputs and 8
outputs. The purpose of the board is to provide logic
necessary for items such as interlocks, inmate call functions,
etc. The logic board is used in conjunction with
MTI part #81093, mechanical relay board. Any logic to be performed in the system
is performed by the 81094 logic board. The
system provides an excellent system for a small graphic
panel requiring no central control capabilities and few
logic functions. A logic board is provided with a
socket for the logic chip. The logic chip can be
changed to change the function of the board.