X0400 Series Router Manual
Page - 10
Revision 1.4.4
INSTALLATION
GPI
15
25
5-50 VDC
GPI
Command
to
internal
circuit
220 Ohm
GND
Vext
2.7 K
Figure 2-8: Powering the General Purpose Input Opto-Isolators from an External Power Supply
2.5.2. Connecting the General Purpose Outputs
The Programmable GPOs are used to trigger alarms or to provide a limited tally capability. The GPOs will
be in the de-energized state when the power is off so all contacts will be closed. When the router is
powered up the GPO Relay contacts will open. An alarm or tally will cause a contact closure. The 4 GPO
contact sets can be operated in one of two encoded modes. In these modes, many of the GPO contacts
are pre-assigned to a function. When the GPO Encoding is set to none, all 4 contact sets are available for
the user to assign to particular functions. Section 3.13.3 describes how each of the GPO encoding modes
works and how to configure the GPOs using the
GPO SETUP
menu.
2.5.3. GPI/O Examples
By careful use of the GPI’s and GPOs one can create some unique control scenarios for controlling the
Router. Figure 2-9 shows an example of such an application. By setting up jumpers for the GPI/O
connector and setting the GPI/O configurations in the router
Setup
menu, one can create an auto
changeover for a program feed. In this configuration when input 1 fails and that input is currently selected
on the output of bus V1, the router will automatically select input 2.
Summary of Contents for X0400 Series
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