ZETRON 025-9581M, Installation And Maintenance Manual

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Appendix A: Details of Model 6203/6204 Hardware
170 025-9581M
Relay Outputs
The Model 6203 has four general-purpose, DPDT relays that can be controlled from the
Model 6203, by commands from the FSA Server, or by external events.
For relay connection information, see Relay Connections (P1-P4) on page 154. If a relay
is to be controlled by the FSA Server, then the FSA Console must have a dedicated relay
control button, or if a CAD interface is used, the CAD console must have one.
Manually operated relays may be configured from the FSA Maintenance Utility. The
operating parameters for relays that change state in response to the condition of sense
inputs are set with the M6 Configuration Utility. See
Serial Port Programming on page 60
for information on how to use the serial programming mode.
Sense Inputs
The Model 6203 has four inputs for connecting to logic level sensors (see Sense Inputs (P7
- P8) on page 156). There are many applications for these sensors. Any change of state at
one of these inputs is immediately transmitted to the FSA Server. Please note that these
state changes are not queued. This means that under some conditions, if multiple state
changes occur at the same input before the first state change is successfully transmitted to
the FSA Server, not all of the changes will be reported.
In order for the state of a Sense Input to be displayed at the dispatch console position, the
FSA Console or CAD application must have an annunciator button assigned to that
particular Sense Input. Sense Input state changes are always reported on the CAD and
Data Logging interfaces even if no annunciators are assigned to display sense input status.
Sense input state changes can also be used to reset Model 6203 relays and to acknowledge
alerts. The configuration and assigning of sense inputs is done with the M6 Configuration
Utility. (See
Serial Port Programming on page 60.)
Note If relays are operated manually, through the Relay Control input
(on the Power Supply board), the programmed set/reset conditions
do not apply.