MFI -SiPass Multi-Function Interface
- S54502-C154-A100
- Dimensions (W x H x D) - 239 × 156 × 53 (mm) 
- Weight - 0.630 kg 
- Tamper contact - Opening tamper switch and removal tamper switch 
- Colour - White 
- Communication protocol - FLN Field Level Network 
- Power supply - 20 ~ 29 V DC, 1Vpp Ripple 
- Power consumption - 116 mA @ 24V DC: No relays activated, and no inputs connected to MFI. 183 mA @ 24V DC: All relays active, inputs double balanced. 193 mA @ 24V DC: All relays active, inputs current loop 
- Inputs - Up to 8 Monitored inputs are used for Door position sensor inputs and REX inputs with MFI configured in Door Controller mode. These 8 inputs can be used as general input points with MFI configured in input-output controller mode. 
- Relay outputs - 8 relay outputs, max 30 V DC , 2A 
- Outputs - 3 Open Collector Outputs, Max load 0.5A 
- Connectors - Supports maximum up to 8 OSDP Readers with OSDP V1 and OSDP V2 encryption. 
- Operating temperature - - 40 C ~ +55 C 
- Environmental class - II 
- Power output - 12V DC, max 500mA protected by firmware controlled e-fuse Can be used to connect readers or any other load, but restricted to 500mA overall current output. 24V DC, max 1500mA protected by firmware controlled e-fuse Can be used to connect readers or any other load, but restricted to 1500mA overall current output. 24V DC, max current restricted by MFI power supply capability Can be used for powering door locks. However, it is not suggested for powering readers as there is no firmware controlled fuse to detect over current draw. 
