Mettler Toledo IND780 Manuel D'installation page 60

IND780 Installation Manual
Active Input
Selecting the inputs as active enables connection of switches or other simple
devices to trigger an input. No voltage is supplied by the external simple device. An
example of how to wire to the active inputs is shown in Figure 2-52. Note that pin
10, the +5VDC connection, can carry no more than 200 mA current.
2-32
Figure 2-49: Discrete I/O Board, Solid State Relay
Figure 2-50: Discrete I/O Board, Relay
Figure 2-51: Discrete I/O Mode Selector Switch, Active Position
Mode Selector Switch