Simplex 4090-9118 Relay IAM with T-SenseSingle Address Dual Point Module. The 4090 9118 Relay IAM with T Sense allows a compatible Simplex fire alarm control panel IDNet communication channel to monitor two input contact closures with one point and control an output relay with the other point, both from a compact module requiring a single address. Module power is supplied from the IDNet communications channel eliminating the need for separate power wiring. Multi Point Device Description.