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The version with 8 contacts has additional inputs to connect buttons for opening the first and second locks, as well as an additional input for a fire alarm.
There are variations (SH-42.2, SH-42.4, SH-42.6, and SH-42.8) with advanced firmwares that allows opening not only relays 1-2 but also 3-4, 5-6, and 7-8. This possibility is available only for panels with Linux OS. Configuration of lock opening (for relays 1-8) is only available via API. So, by changing the relays numeration in the system it is possible to connect up to 8 locks: SH-42.4 opens the 3rd and 4th locks, SH-42.6 works with the 5th and 6th, and so on. These locks opening is possible via DTMF and API. So, you must set a code (is possible via API). A user must open the keyboard (during a call) to enter the DTMF code(s) to unlock the required relay(s).
Functionality
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- Two built-in relays to control two locks;
- The ability to connect as electromechanical locks and latches and electromagnetic locks;
- Switchable contact group on each relay;
- Communication with the panel via RS-485 interface;
- Input for control low-voltage analog signal;
- Opening delay time configuration (for 8 pin module);
- The ability to connect buttons for opening the first/second locks, and a fire alarm (for 8 pin module).