Serial Interface Unit for use with Custom Keypanels & CONCEPT 32

The STS Signals Serial Interface Unit (SIU) product provides a unique solution to the design and layout of SPT custom keypanels.

The SIU replaces all the electronics normally built into a conventional keyboard or keypanel, and allows complete flexibility in positioning the illuminated push-buttons within the keypanel. The keypanel is connected to the SIU by flying lead cables in sets of 16 with a maximum overall length of 5 metres. The cable consists of a push-button end for panel mounting and a connector end for termination at the SIU. Connectors are push fit and lock, in 2 or 4 way versions to suit the alarm or data signal.

The SIU connects to a CONCEPT 32 concentrator via an RS232 data link (300baud, 8-bit data, odd parity, 2 stop bits) and 2-wire speech circuits for the Operator’s telephone. Public Emergency Telephone System (PETS) facilities and a full range of alarm signals are all available via the SIU.

The SIU case is free standing and suitable for either vertical or horizontal mounting.