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© Sealevel Systems, Inc.
H1400811-8.4 Manual | SL9363 5/2022
Serial Communications
You can connect to a variety of serial peripherals via the HazPAC 10’s serial ports. To start with, there are
two isolated RS-485 serial ports which are provided via a 6 position, 3.5mm pitch terminal block with screw
retention.
The RS-485 serial port has adjacent DIP switches to Pull-up/Pull-Down the data lines and to add
Termination across each data pair.
Finally, two RS-232 serial ports with full modem control are provided, which interface via DB9 male
connectors.