TRLYH1C is the same as the standard TRLY board except for the following:
• Six jumpers for converting the solenoid outputs to dry contact type are removed.
These jumpers were associated with the fuse monitoring.
• Input relay coil monitoring is removed from the 12 relays.
• Relay contact voltage monitoring is added to the 12 relays. Individual
• High frequency snubbers are installed across the NO and Sol terminals on the
six solenoid driver circuits and on the special circuit, output 12.