12 Keysight E1458A 96-Channel Digital I/O Module User GuideConfiguring the Keysight E1458A Digital I/O Module Setting the Address SwitchSetting the Address SwitchFigure 2-1 shows the location and factory default setting of the logical addressswitch (LADDR). The factory setting is decimal 144; switch positions 4 and 7 areclosed, all others are open. The factory setting of decimal 144 results in a GPIBsecondary address of 18 (144 divided by 8). You can set the address of the digitalI/O module to any number in the range of 0 to 255 (decimal).MAXIMUM INPUTS. The maximum voltage that can be applied toany pin on any port is 5 Vdc. The maximum current allowedthrough any data line is 3.2 mA and through any control line is1.75 mA.STATIC ELECTRICITY Static electricity is a major cause ofcomponent failure. To prevent damage to the electricalcomponents in the module, observe anti-static techniqueswhenever removing a module from the mainframe or wheneverworking on a module.For the digital I/O module to be recognized as an instrumentwhen you are using it with an Keysight E1405/E1406 CommandModule and using SCPI commands, the logical address should beset to an integer multiple of 8.
