This GPIO expansion unit for TallyMan Control Systems connects to a System Controller over IP. The ESP-1R+ can be used to expand the available GPIO or simply provide GPIO in a remote location.
The TallyMan Interface unit, the ESP-1R+ consists of 1 x 32 tally input, 32 x open collector tally output, 64 x isolated relays O/Ps, 1 x RS422 and 1 x ethernet
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