DIP Switch 3 in the ON position is used to gain access to the programming mode without needing a security code.
When the house phone goes off hook, two beeps will be heard signaling that the
C-250
is ready for programming
commands. If a call comes in and the auto answer feature is also enabled (DIP Switch 1 ON), the
C-250
will answer
the call on the first ring and send 2 beeps. When in the off position, the security code in position #47 has to be used
in order to enter programming. This switch needs to be off for normal operation. The factory setting is OFF.
3. DIP Switch 3
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A. Visitors
When the entry phone goes off hook, the house phones will ring with a distinctive double ring cadence to identify it is
a entry phone call (programmable to a single ring cadence. The number entered into programming position #44 deter-
mines how many times the house phone will ring from an entry phone call before the call is forwarded using the auto
dialing numbers. If no numbers are programmed, the
C-250
will send a CPC signal to automatically hang up the entry
phone. All Viking hands free phones are able to detect the CPC signal and hang up. If the
C-250
senses that the entry
phone has not dropped off, it will send a busy signal. If auto dial numbers are programmed, it will dial the first one and
watch for a busy or no answer for the duration of the Maximum Ring time. If this time elapses and the
C-250
has not
determined the call has been answered, it assumes that the call was not answered and goes on to the next speed dial
number. If all numbers are called without an answer, the
C-250
will send a CPC signal to hang up the entry phone. The
Maximum Call Time is started as soon as the
C-250
is done dialing each number. If this timer elapses, that call is ter-
minated and no further numbers are dialed.
B. Immediate Call Forward
The entire sequence of the house phone ringing when the entry phone goes off hook can be skipped. This is useful if
the user will not be at home and wants the
C-250
to skip ringing the house phone and immediately forward all entry
calls to the programmed phone numbers. There are several ways to do this. The first is to clear the house phone ring
count or set it to 0 in programming position #44. This can only be done in the programming mode, but can be done
locally or remotely if auto answer (DIP Switch 1) is on. The second way is to go off hook with any house phone and
enter “
QQQ
”. This places the
C-250
in the Immediate Call Forward mode. With this mode enabled, each time the house
phone goes off hook, a single beep will be heard in order to let the user know that this mode is on. To cancel the
Immediate Call Forward mode, pick up the house phone and enter “###”. Two beeps will be heard letting the user know
the Immediate Call Forward mode has been cancelled. These immediate call forward commands must be entered with-
in 5 seconds of off hook. The third and final way is to provide a contact closure across the trigger input (DIP switch 2
must be ON).
C. Monitoring or Receiving Door Phone Calls
If the tenant wants to monitor the entry phone, they can pick up any phone in the house and hook flash within 5 sec-
onds. This will cause the
C-250
to ring the entry phone up to 5 times. Hook flashes after the 5 second time out will be
passed along to the CO line. This is useful for using standard CO call waiting features. If the tenant is on an outside
call, and the entry phone comes off hook, a call waiting tone will be heard every 12 seconds. The tenant can then hook
flash to put the CO call on hold and connect to the entry phone. When the conversation with the person at the door is
done, the tenant can return to the original caller with another hook flash. If using a 2 digit door strike code, the entry
phone will be dropped after the first digit.
Dip Switch 1 enables the auto answer feature. When in the ON position, the
C-250
will answer an incoming call after
the number of rings programmed into location #45. If position #45 is cleared, or contains 00, the
C-250
will not
answer the line. If this feature is enabled, there cannot be anything else on the phone line that could answer the call
before the
C-250
such as an answering machine. If security is an issue, it is best to not allow remote programming
and leave DIP Switch 1 in the OFF position. The factory setting is OFF.
1. DIP Switch 1
DIP Switch 2 determines the operating mode of the Trigger Input. When DIP Switch 2 is OFF, a momentary closure
connected to the trigger input will cause the Door Strike relay to actuate for the programmed amount of time in loca-
tion #40. If DIP Switch 2 is in the ON position, the Trigger input now controls whether or not the house phone will
ring when the door phone goes off hook. If the trigger input is open, the house phone will ring for the number of
times programmed in location #44. If the trigger input is closed, the
C-250
will skip ringing the house phone and go
right to calling the preprogrammed phone numbers. This Trigger Input mode is useful if you want to control the oper-
ation of the
C-250
by some other piece of equipment such as a phone system placed in the night mode, a clock
controlled relay or a toggle switch. The factory setting is OFF.
2. DIP Switch 2
7
