Plug-on PCB that converts the on-board digital communicator connector on Premier Elite control panels* into serial communications port ComPort 3**. This adaptor, when used in conjunction with Premier Elite V3.00 firmware or above, allows three serial communication ports to be used simultaneously for use with compatible products. Available in a pack of 5 adaptors. *Except the Premier Elite 640, which has three serial communicator ports as standard **When fitted with a ComPort+, the onboard digital communicator cannot be used
