Mettler Toledo IND246 Guide D'installation page 40

IND246 Terminal Installation Manual
USB Connections
The USB option board is positioned in option position 1 on the Main board. This
option board provides a single USB type B connector port, shown in Figure 2-29.
The USB port is a device type interface (not a master) and operates basically as a
serial port. A mating type B USB cable is required when connecting to this port.
USB with Discrete I/O Connections
The USB/DIO option board is positioned in option position 1 on the Main board.
This option board provides a single USB type B connector port with two isolated
inputs and four dry-contact, normally open relay outputs. The inputs can be
selected as either active or passive based on the position of the slide switch on the
board. The connectors are visible in Figure 2-30.
The USB port functionality is described in the USB section above and the Discrete
I/O function is described in the COM2/DIO section above. Refer to these sections for
connection and operation details.
2-18
Figure 2-29: USB Option Board
Figure 2-30: USB/DIO Option Board