Signal connections
July 29, 2013, 715003794 Rev. B 75
Digital signal connections
The rear panel includes one RS-232 interface connector, one IEEE-488
interface connector, and one Ethernet connector for digital signal
communications (see the figure “Rear panel of the separations module:” on
page 49).
RS-232 connections
The separations module is equipped with a DB-9 connector for RS-232-port
communications (see the figure “Rear panel of the separations module:” on
page 49). The RS-232 port supports both binary and ASCII communications.
For remote operation, you use the RS-232 to connect to a non-Waters data
system that uses RS-232 communications to control the separations module.
To enable this communication, you choose either Controlled via RS232
(ASCII) or Controlled via RS232 (Binary) in the Configuration screen
depending on your data system requirements. For more information on the
Configuration screen, see “Set configuration parameters” on page 91.
Alternatively, when the separations module is in the System Controller mode,
you can use the RS-232 port to transmit data to external devices (a Waters
746 Data Module or serial printer, for example). You can transmit two types of
data over this interface:
• Print Data – When you press the Print screen key
• Report data – When a report is generated
The following table lists the values of the RS-232 output data parameters that
you can select in the Configuration screen. For more information on the
Configuration screen, see “Set configuration parameters” on page 91.
Toggle Changes the current state of the switch
Pulse Closes or opens the switch for a user-defined
period
No change Leaves the switch in its current state
Event switch positions and functions: (Continued)
Position Function
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