Siemens TRI-D — dual input intelligent initiating interface module, part number 500-896226, for FireFinder XLS and MXL control panels.
The TRI-D supervises two separate sets of normally open dry contacts from one enclosure, which is why Siemens names a waterflow switch and its matching valve tamper switch as the typical application. It differs from the single input members of the series in taking two address settings.
- Two supervised inputs for normally open dry contacts
- Requires two address settings on the addressable circuit
- Current draw 1.5 mA, active or standby; two-wire operation with dynamic supervision
- Electronic addressing set with a Model DPU or FPI-32 programmer
- Multi-color LED, flashing twice, once per address: green normal, amber trouble, red change of status
- Mounts in a 4 in. square or double-gang box; UL and ULC Listed, CSFM and NYCFD Approved
TRI-S (500-896225) is the single input module and TRI-R (500-896224) the single input module with an addressable Form C relay. The later HTRI-D and XTRI-D are separate lines, not drop-in equivalents: HTRI-D needs only one address.