The 2904UL from Cyrex is a Telephone interface module for SimpleBus2 and SimpleBus color.
- Easily connect the door entry system to the standard telephone system
- It is possible to directly connect a traditional phone or a DECT cordless phone
- Requires 12VAC or 20VDC Power Supply
- Possible to open the main door or activate any other function of your choice
- Directly connected without using a telephone switchboard