24 channels for dry contact input.
■Switch types include: mechanical switch, single-on, single-off, single-on/off, combination on, combination off, combination on/off, invalid switch, (both mechanical switches and combination switches can set 49 control targets).
■Control target mode: scene, sequence, universal switch, single channel lighting control, broadcast scene, broadcast channel, curtain control, panel control, GPRS etc.
■Security function, should be used in conjunction with the security module.
■ Supports online upgrading by HDL Buspro.