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| | Automating the TFT EAS 911 |
In Auto Forward Mode, the RS-485 Remote Control and Status interface
can be used as a Tally input when EAS 941A Remote Control/Status Modules
are not used. To enable this mode, select 0 REM/TALLY ON from the Remote
Control/Status Module menu (SETUP item 23). The mode is disabled by selecting
0 REM/TALLY OFF from the menu. Biasing the input as shown below in Figure
4-26-1 will permit a Normally Open tally contact to delay an Auto-forwardable message,
then release it for forwarding with a momentary closure.
When
viewing the rear of the EAS 911, pin A of J105 is on the right; pin B is on the
left. The Alert Relay contacts, J107, can be used to notify the automation
system that an alert has been received. If the tally contacts do not
close, the alert will be forwarded automatically after 15 minutes. The +12V
can be supplied externally, or is available on J103 pins 7 and 4 and on J104
pins 7 and 4.
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