Specifications

RFC-1 Advanced Operation page 6.39
6.8.4 Setting the Call Mode
Each telephone number has an associated dialing mode. This setting determines how the number is dialed: in voice
mode, data mode or pager mode. There are two pager modes: pager mode and legacy pager mode. Pager mode
supports many features of modern paging systems. Legacy pager mode sends a single digit repeatedly to the paging
terminal for rudimentary site identification.
Select the call mode from the table below and program the associated V1 at the appropriate address to set the call
mode for a telephone number. Some call modes require special programming. Details are provided below.
V1
Call Mode
V1
Call Mode
0 *
Voice mode
8
Legacy pager mode with site ID digit 4
1
Data mode to modem
9
Legacy pager mode with site ID digit 5
2
Pager mode to text pager using data terminal
10
Legacy pager mode with site ID digit 6
3
Pager mode to text pager using DTMF tones
11
Legacy pager mode with site ID digit 7
4
Legacy pager mode with site ID digit 0
12
Legacy pager mode with site ID digit 8
5
Legacy pager mode with site ID digit 1
13
Legacy pager mode with site ID digit 9
6
Legacy pager mode with site ID digit 2
14
Legacy pager mode with site ID digit ❊
7
Legacy pager mode with site ID digit 3
15
Legacy pager mode with site ID digit #
* This is the default setting.
Many paging systems use the ❊ and # keys as control keys. Items 14 and 15 may not work with all paging systems.
6.8.4.1 Calling Voice Numbers
Voice mode is the default setting for all calls. In a voice call, the RFC-1 dials the telephone and speaks a message to
alert station personnel of the condition that triggered the call. The message consists of the site identification phrase
followed by a brief message that describes the condition such as, “telemetry alarm” or “power failure”. No extra
hardware is required for voice mode calling.
6.8.4.2 Calling a Data Number
Data mode calls are used when the RFC-1 is performing a remote logging function to a personal computer or other
remote terminal. Data calls require a modem accessory for the RFC-1 such as the MA-2 Modem Adapter.
In a data call, the RFC-1 establishes a data connection between its modem and the modem at the associated
telephone number. Once a connection is made, communication takes place using ASCII data. This data stream can
be captured by a software terminal program on a personal computer and logged to a file or sent to a printer.
An alarm call in data mode will send a message consisting of the date and time, the site identification phrase and a
brief alarm message. It will look similar to the sample below.
Date: 01/01/2006
Time: 04:38:29
Site: This is RFC1B
Telemetry Alarm Channel 00: 107.2 Percent Power