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The UL 3 channel I/O unit enables simple interfacing between the fire system and other equipment, such as nurse call systems or access control systems.
The inputs are fully monitored for open and short circuits, and ground faults.
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| UL Listed 3 Channel I/O Unit | ULCIO351 |
| Description: | 3 Channel I/O Unit |
| Standards: | UL864 9th edition |
| Signalling Line Circuit (Style 7, Class A, Supervised, Power Limited) | |
| Operating voltage: | 24Vdc |
| Current: | 1.14mA to 1.36mA |
| Line Impedance: | 50Ω |
| Inputs 1, 2, 3 Contact Only Initiating Circuit (Style C, Class B, Supervised, Power Limited) | |
| Voltage: | 8.4Vpp (pulsed every 1 sec) |
| Current: | 1mA (max) |
| Line Impedance: | 16Ω (max) |
| Trigger Resistance: | 5.6kΩ |
| End of Line Resistor: | 22kΩ |
| Output 1, 2, 3 (3 contact set programmable) | |
| Voltage: | 24Vdc to 30Vdc |
| Current: | 1A (max, resistive PF1) |
| Switching Power: | 33kΩ (min) |
| Power Factor: | 1 |
| Environmental | |
| Operating Temperature: | 0°C to 49°C |
| Humidity (Non-condensing): | 0 to 93 % RH |
| Physical | |
| Dimensions (HxWxD): | 129mm x 180mm x 60mm |
| Weight: | 0.28kg |
| Ingress Protection: | IP65 |
| Compatibility: | Suitable for use with Eaton UL fire systems |
