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6.3 Call-In and Call-Out
Call-In
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Call-Out
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6.3.1 Call-In
ERX350 has the capability to initiate a modem to modem telephone call. This is called call in and can
happen under two circumstances.
Alarm Call-In
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Scheduled Call-In.
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6.3.1.1 Call-In
When connected to either a cellular or landline modem the ERX350 can be configured to autonomously
dial and connect to a host computer. It can do this according to a preset schedule or in the event of an
alarm condition. Previous Mercury Instruments products have incorporated similar features, but the
ERX350 is unique in its support of four phone numbers (or IP addresses); two for scheduled calls and two
for alarms. This provides the ability to communicate with four different hosts. In turn, this feature leads
to some differences in the retry algorithm. Call in configuration items are:
Honeywell
2023
6 Remote Communications
6.3 Call-In and Call-Out
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