Power Supply In the Flexisoft select FLA0402L or V2 for FLA0j402L-V2 unit. FLA0402L-V2QUICK START GUIDE FLA0402L-V2: This is an analog expansion module, which work with FlexiLogics® base PLC. This module has 4 Linear Inputs (0-10V / 4-20mA / 0-20mA), 16 Bit, 2 Analog Outputs (0-10V / 4-20mA / 0-20mA), 12 Bit. Dimensional Details: Steps to lock the expansion module with base module: FIG-1 Lock connector provided with base PLC unit FIG-2 Two slots to grip the locking connector are provided on the case highlighted by RED circle. Insert a big leg of locking connector highlighted by RED rectangle. FIG-3 Single base PLC unit with locking connector FIG-4 Locking connector helps the two units (PLC base &/or PLC expansion) to hold each other properly on the DIN rail plate along with DIN rail slider. Panel Mounting: FIG-1 Pull up the sliders provided with the unit towards outward direction. FIG-2 Rest the unit on the DIN rail plate FIG-3 Pull down the slider again so that unit can fix up with