Delock Serial Switch RS-232 4-port manual 87589 This Delock RS-232 switch can be used for connection of up to 4 devices to the RS-232 port and thus you can connect your devices by another RS-232 port to your PC. By using one of the 4 buttons you can manually select which device should be connected to the PC. Therefor you do not need a power supply. Specifications: Connector: Input: 4 x serial 9 pin RS-232 male Output: 1 x serial 9 pin RS-232 female Serial male and female ports with nuts 4 mechanical buttons Metal housing Dimension (LxWxH): ca. 12 x 8.0 x 4.0 cm Colour: beige System requirements A free RS-232 connector Package content Switch User manual