Check the listing for details. Liftmaster / Link CPS 41K4629 Replacement Interface Black Box Protector System. Color: Black, Condition: New. Listed at 74.95 USD. Liftmaster / Link CPS 41K4629 Replacement Interface Black Box Protector System Liftmaster / Link CPS 41K4629 Replacement Interface Black Box Protector SystemDescriptionThe CPICARD is used to add a set of monitored photo eyes (CPS-U, CPS-OPEN4, CPS-RPEN4) or a monitored edge (OES) to a non-monitored operator. It can also be used to add a set of LC-36A light curtains to a non-monitored operator. In the case of monitored photo eyes or edges, entrapment systems will only be monitored from the photo eyes/edge to the interface module itself, and does not qualify as a monitored safety protection system. LC-36A light curtains are non-monitored devices only but may be used with the CPICARD on non-monitored operators.Replacement Interface Box.Used with CPS Protector Systems.For use on LiftMaster and Link commercial door operators onlyReplacement Interface Box. Used with CPS Protector Systems. For use on LiftMaster and Link commercial door operators only. The CPICARD is used to add a set of monitored photo eyes (CPS-U, CPS-OPEN4, CPS-RPEN4) or a monitored edge (OES) to a non-monitored operator. It can also be used to add a set of LC-36A light curtains to a non-monitored operator. In the case of monitored photo eyes or edges, entrapment systems will only be monitored from the photo eyes/edge to the interface module itself, and does not qualify as a monitored safety protection system. LC-36A light curtains are non-monitored devices only but may be used with the CPICARD on non-monitored operators. Payments & Returns Policy