Viking RC-3 Technical Practice page 7

Programming Unit Operation
Hang up (factory set to 01) ........................................................................................................
Timed activation all programmed relays (factory set to 02) ........................................................
Security code (factory set to 845464) ........................................................................................
Access code (factory set to 123456) .........................................................................................
Ring delay before answering (1 to 99 rings, 00 = disabled, factory set to 15) ............................
Set relay bank number (when using two or three RC-3's on the same line, factory set to relay
bank 1) ......................................................................................................................................
Access code timeout in seconds (120 secs max, 3 sec min, factory set to 20 secs) ..................
Digits in relay commands (factory set to 2) ................................................................................
To enter Q as part of a command ...............................................................................................
To enter # as part of a command ...............................................................................................
Return programming to defaults ................................................................................................
Disable any of the above commands .........................................................................................
Note Programming a Slave Unit: If using #54 to set the relay bank number, this must be done before setting the num-
ber of digits in relay commands (#56) or programming the individual relay commands. See RC-3 Operational
Commands, C. Default Slave Commands.
Unit Function
Hang up in programming .......................................................................................................................
E. Enable / Disable Acknowledgement Tones
With acknowledgement tones enabled ("Q1"), the RC-3 confirms valid relay or global commands with acknowledgement beeps. Two beeps are pro-
vided when the relay is currently activated and a single beep is provided when the relay is currently deactivated.
These acknowledgement tones can be disabled in programming using the "Q2" programming command. This will only disable acknowledgement
tones following relay activation commands, relay interrogation commands or the timed activation of all relays global command. All other operational
beeps are still provided by the RC-3. It will still provide one or two beeps when it answers a call (in Ring Trip Connection), two beeps after a valid
Access Code has been dialed (if Access Code is enabled), a single beep when the 3 second Interdigit Timer expires (incorrect length relay command
has been dialed), three beeps when the Access Timer has expired (if applicable) and three beeps when the touch tone hang up command has been
dialed.
O p e r a t i o n
O p e r a t i o n
A. Trunk Connection
In the Trunk Connection, the RC-3 can be accessed by going off hook on the analog phone or trunk input connected to the OUT terminals of the RC-
3 (see Installation, section A). If the Access Code is disabled, the user has immediate access and can begin entering Relay Commands. If the
Access Code is enabled, the user enters "Q" plus the Access Code, hears two acknowledgement beeps, enters the Relay Control State and can start
controlling the relays. The Access Timer is not running in the trunk mode. To leave the Relay Control State, just hang up the phone or trunk input.
B. Ring Trip Connection
In the Ring Trip Connection, the RC-3 can be accessed by calling the CO line or station connected to the IN terminals of the RC-3 (see Installation,
section A). The RC-3 answers after its programmed number of rings. If the Access Code is disabled, the unit gives two acknowledgment beeps to
indicate that it is ready to receive Relay Commands. If the Access Code is enabled, the RC-3 gives a single beep as a prompt to enter the Access
Code. The user enters "Q" plus the Access Code, hears two beeps, enters the Relay Control State and can start controlling the relays. The Access
Timer is running in the background and will pull the RC-3 out of the Relay Control State, provide three beeps and hang up if the timer expires. To
reenter the Relay Control State it is necessary to call the unit again and reenter the Access Code. To leave the Relay Control State, either hang up,
allowing the Access Timer to expire, or enter the hang up command. The default value for this command is "01", but this can be programmed to any
1 – 3 digit number (see Programming).
C. Parallel Connection
While the RC-3 is designed to be used in either the Trunk or Ring Trip Connection as described above, it may also be used in the Parallel Connection.
This is done by connecting the IN terminals of the RC-3 in parallel with a CO line, station or other analog phones. Be sure to leave the RC-3's talk
battery switch turned OFF if talk battery is being supplied by another source. If the Access Code is disabled, the RC-3 continuously monitors touch
tones and acts on any match to a relay command it detects, even if they are preceeded by or followed by other touch tones. If the Access Code is
enabled, a user that enters "Q" plus the Access Code will hear two beeps, enters the Relay Control State and can start controlling the relays. The
Access Timer is running in the background and will pull the RC-3 out of the Relay Control State and provide three beeps if the timer expires. To reen-
ter the Relay Control State it is necessary to dial "Q" and reenter the Access Code. It should be noted that the Parallel Connection is not suited for
applications that require more than a very minimal level of security. The program mode of the RC-3 can not be accessed in the Parallel Connection.
Enter Memory
Digits -then- Location
+
1-3 digits #41
+
1-3 digits #42
+
6 digits (0-9) #51
+
1-6 digits (0-9) #52
+
1-2 digits #53
1, 2 or 3 #54
+
1-3 digits #55
+
1, 2 or 3 #56
+
QQ
Q#
###
# + memory location
Enter Digits
##7
7