RFC-1 New Features and System Changes page 2.2
Telemetry System Updates
Telemetry channels that are programmed as status channels (“on/off”, “normal/alarm”, etc.) can be individually
programmed to invert the status reading. Typical behavior is a reading of “off” when no voltage is present and “on”
when voltage is present. The readings can be swapped so that no voltage reads “on” and voltage present reads “off”.
This eliminates the need for wiring an external inverter circuit.
There are a couple of changes to the telemetry channel status options. Option 0-4 changes from unused to “normal”
(low) / “failure” (high). Option 0-15 changes from “normal / EAS” to “audio failure” (low) / “normal” (high).
Timed-Event Updates
Timed events can be programmed according to the day of the week. In addition to the previously available options,
time triggers can be programmed to operate only on a specific day of the week, weekdays only or weekends only.
New date/time trigger options are available to repeat an event on specific intervals. The value 15 has always been
used to match all values for month, date and hour. The hour can now be programmed with 15-1, 15-2, 15-3 or 15-4
to repeat an event every 1, 2, 3 or 4 hours. Similarly, minute settings can use 15-1 through 15-5 to repeat an event
every 1 through 5 minutes. Programming of events that repeat on a regular cycle is greatly simplified.
Alarms can be enabled and disabled by commands in an action sequence. This means that timed events can now be
used to enable and disable alarms using all of the date/time trigger options.
Telephone Related Updates
The DTMF tone dialing system is capable of generating the tones associated with the ❊ and # keys. These tones are
required by some telephone systems. Previous versions of the RFC-1 could not generate these tones due to
memory limits of the speech processor. Some of the names in the word table were eliminated to create space in
memory for the additional DTMF tones.
The tone dialing system can use a dedicated DTMF tone generator if it is available in hardware. Early hardware
versions use the speech processor to reproduce stored tones. A dedicated tone generator is faster and generates
tones with more accuracy.
Multiple telephone numbers can be chained together to achieve dialing stings longer than the default twelve digits.
Voice calls using tone dialing and data mode calls can utilize this feature. Pulse dialing is limited to 12 digits per
telephone number.
The command 89 now reads and programs telephone number D.
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