Sierra Monitor Company FS-8700-48 - Manual (Page 23)

FS-8700-48 Fike Cheetah Manual Page 24 of 37
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]
Appendix A. Useful Features
Appendix A.1. Acknowledging Alarms
This driver can be used to acknowledge alarms, reset or silence the Cheetah panel.
This functionality is limited. For this function to operate the Cheetah panel must be configured to supervise the
port that the FieldServer is connected to. In addition to enabling this function, port supervision means that the
panel will go into alarm if the FieldServer does not respond to the supervision messages. In fact the request to ack
/reset/ silence the panel is included in the driver’s response to the supervision poll from the panel. The panel
ignores unsolicited messages. A consequence of this is that the driver cannot control the timing of when the ack
/reset/ silence message is sent to the panel.
In using this functionality you should also understand that the Cheetah panel protocol does not acknowledge
message receipt so this driver cannot report whether the message was received by the panel and whether it was
acted on.
The port supervision response message is sent even if you do not define a Port Response Map Descriptor in the
CSV file. In this case the command data will always be zero. Once you define a Map Descriptor then the driver
uses one Data Array element to determine the command data to send to the panel. The value from this array
element determines the action the panel will take.
Bit Action Decimal Value
0 Reset 1
1 Silence 2
2 Acknowledge 4
Example: To Silence the Panel, then set the value of the Data Array element to 2.