Module for customized instrument construction Guide rails for mounting circuit boards at 4 different levels Plastic front panel for easy processing Power is supplied by the mainframe Mainframe HM8001-2 or HM8003 required for operation Available supply voltages (max. 18 W): 2 x 8 VAC 0.5 , 2 x 5 VDC 1A, and 4 x 20 VDC 0.5 A