Viking RC-3 Technical Practice page 2

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D e f i n i t i o n
D e f i n i t i o n
ACCESS CODE: The Access Code is a user programmable touch-tone code from 1 - 6 digits in length which can be used to access the RC-3
relays. If the RC-3 is programmed to require an access code, it will not respond to relay commands until "Q" plus the access code has been suc-
cessfully entered. It is recommended that the default Access Code of 123456 be changed to a unique code by the user in programming. The
requirement of "Q" plus the access code is disabled by setting dip switch 2 to OFF.
ACCESS TIMER: The function of the Access Timer is to set the RC-3 back to the Secure State if Relay Commands are no longer being entered.
The access timer always applies when using the RC-3 in the Ring Trip Connection (access code enabled or disabled) and the Parallel Connection
but only when Access Code is enabled (dip switch 2 ON). The timer has a default value of 20 seconds and counts down in the background when
the RC-3 is in the Relay Control State. Every time a touch tone is entered, the Access Timer is reloaded, so it is possible to stay in the Relay
Control State as long as touch tones are being entered. If the Access Timer elapses, it gives three beeps and sets the unit back to the Secure
State. To return to the Relay Control State, it is necessary to reenter "Q" plus the Access Code. The minimum programmable time for the Access
Timer is 3 seconds.
E-30 MODE: The E-30 Mode is enabled by setting dip switch 4 to ON. This mode is used when using one or more Viking E-30 or E-30-EWP's
(handsfree speakerphone with dialer) on the same line with the RC-3. This mode changes the default relay commands in the RC-3 to commands
that do not conflict with the features or programming of the E-30 speakerphones. When set to the E-30 mode, custom relay commands can not
be programmed (error beeps are provided). The E-30 mode is compatible with the relay bank number programming, so it is possible to have
three RC-3's and nine E-30's on the same line for nine entry phones and nine door or gate control relays.
INTERDIGIT TIMER: This timer operates in the Relay Control or Unsecure State and can be thought of as a "start over" timer. Its purpose is to
allow the user to go back and start a Relay Command over if an error was made. In the normal entry of Relay Commands, as long as the time
between touch tones does not reach three seconds, the Interdigit Timer does nothing. However, if a mistake is made, the user can just wait three
seconds, hear a single beep and start the Relay Command entry over. The Interdigit Timer only applies when the RC-3 is programmed with relay
commands that are two or three digits in length. When programmed for single digit commands, there are no "incomplete" commands, so the sin-
gle beep is not provided.
LOOP DETECTION: The RC-3 includes hardware to provide loop detection. When a phone is connected to the OUT terminals of the
2 RC-3, this tells the unit when a phone is in use, making it possible to both start and terminate the Relay Control State (if programmed).
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Viking Electronics, Inc., 1531 Industrial Street, Hudson, WI 54016 (715) 386-8666