SKU: GM-IPOP-EXP4PWGM-IPOP-EXP4PW 2-door expander board 4 access expander moduleOnly suitable for GM-IPOP-2P-WIEG controller with WIEGAND protocolPlug-in installation on the controller Dimensions and DownloadsDimensions: 198(W) x 70(H) x 26(D) mm Spec sheet Application note IP-Opener Connection quick guide IP-Opener Configuration quick guide IP-Opener
