Satel RK-4K Radio Controller 4-Channel Radio Controller The RK-4K controller allows you to remotely control devices connected to relay outputs using keyfobs. The controller can remotely control electrical devices such as parking barriers, gates, roller shutters, etc. The controller can interface with up to 1024 keyfobs but only supports keyfobs manufactured by SATEL. Inputs that provide information about the system status facilitate the controller's interaction with alarm systems. These inputs allow for easy signaling of arming/disarming and alarm clearing. The design is based on Microchip Technology Inc. KEELOQ components. This ensures both user safety and resistance to spurious control signals from other devices. KEY FUNCTIONS OF THE RK-2K: 4 relay outputs (channels); ability to register up to 1024 keyfobs; configuration possible using a computer with the RK Soft program installed; 2 OC-type outputs (low battery indication for the keyfob). arming/disarming/alarm clearing indication in the alarm system.; 2 inputs for monitoring the alarm system status; arming information. alarm information.; RS 232 (TTL) port for connection to a computer; LED for indication; tamper contact responding to enclosure opening; can be powered by DC and AC voltage; the set includes 2 T-4 remote controls; ELECTRONICS BOARD 1. antenna. 2. SMA connector for connecting an external RK-4K SMA antenna. 3. bicolor LED. green light – power OK; red light – a transmission has been received from the remote control; flashing red – a transmission has been received from a remote control with a low battery.; 4. tamper contact. 5. RS 232 port (TTL standard). 6. terminals. 7. MODE pins. Used to set the operating mode of the relay outputs. The digit is the relay output number. 8. PRG buttons. Allows you to add / remove remote controls and specify the relay outputs' operation time. The digit is the relay output number. The PRG1 button allows you to restore the factory settings. TECHNICAL DATA Operating temperature range: -10°C..+55°C. Weight: 90 g . Maximum humidity: 933%. Operating frequency band: 433.05 434.79 MHz . Dimensions: 118 x 72 x 24 mm . Supply voltage (10%): 24 V AC . Relay output: 1 A / 24 V DC/AC. LV output: 50 mA / 24 V DC/AC. SS output: 500 mA / 24 V DC/AC. Standby current consumption (12 V DC power supply): 18 mA . Standby current consumption (24 V AC power supply): 32 mA . Maximum current consumption (12 V DC power supply): 58 mA . Maximum current consumption (24 V AC power supply): 48 mA . Supply voltage (10%): 12..24 V DC .