The standalone configuration is designed to allow the keypads to control a system comprised of domes and/or receivers but not a matrix or CPU. A single keypad can control 255 fully-functional variable-speed domes.In NOVA configuration, the keypads are designed to communicate with a Pilot/NOVA matrix system or ViconNet system to provide total operational support for the system, whatever the number of inputs and outputs. Up to 64 keypads can be included in a system, depending on matrix type. Control of variable-speed fully-functional domes and cameras is standard. Reliable serial communications is achieved using a four wire half duplex RS-422 protocol.In standalone configuration, it is possible to operate in simplex mode, although indications of autoiris, autopan and auxiliary status will not be displayed in the LCD window.Five modes are available to provide operation, programming and keypad setup. Normal operation mode is always entered after
start up of the keypad. A preset store mode saves a programmed pan-and-tilt position for future recall. Sequencing dwell times may be set in the Set Dwell mode used for NOVA installations only. In a keypad setup mode, the keypad address, baud rate,joystick profile and LCD contrast may be defined. The buzzer,home position (return to preset 1 position upon an active alarm)and alarm acknowledgement requirements may also be enabled or disabled in the keypad setup mode. In a separate keypad test mode, pan and tilt coordinates are displayed and allow for adjustment of deflection and center.Finished in black "walnut" enamel, the keypads have tactile robust pushbuttons in two shades of gray and a reliable positive variable-speed joystick for precise control.