- Viking Secure Touch Tone Relay Controller- Secure control of high security building entry systems- Door strikes and gates in conjunction with door boxes (W-1000 etc.) entry phones (E-10A E-20B E-30 E-40 E-50 K-1700-3 etc.) or hot-line/panel phones (K-1500-7 K-1900-7 etc)- User touch tone programmable- Non-volatile memory - retains programming during power outage- 6 digit programmable security code (to access programming)- Switchable 32V talk battery- Programmable relay activation time- Programmable relay activation code (1-2 digits or **)- Operates on any 12-24V AC/DC power source- LED’s for power / relay activation- Programmable allow / restrict for dialing from entry phone- Programmable allow / restrict for keyless entry from entry phone- 32 keyless entry codes- Trigger input for contact closure from postal lock request to exit etc.VKSRC1