Specifications
Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking Electronics, and its affiliates and/or
subsidiaries assume no responsibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate
such changes.
Fax Back Doc 155 ZF301990 Rev APrinted in the U.S.A.
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If a C.O. line call is in progress and a doorbox is activated, a single or double “call waiting” tone will be heard indi-
cating doorbox 1 or doorbox 2 is calling. To place the in-progress call on hold and answer the calling doorbox, sim-
ply dial a Touch Tone “#”, pulse dial a “2” or hook flash twice.
2. Placing C.O. Line Calls on Hold
To activate a relay contact, you must be communicating with a doorbox. Simply Touch Tone dial “
✱✱”, pulse dial a
“3” or hook flash three times. Two confirmation tones will be heard and the relay will be activated for the pro-
grammed doorstrike activation time. The phone will then be returned to the C.O. line. If a call was in progress, the
original caller will be taken off hold to continue the conversation. To return to the original call without activating a
relay, Touch Tone dial “#”, pulse dial a “2” or hook flash twice.
3. Activating a Doorstrike, Magnetic Lock or Gate Controller
6. Auxiliary Contacts
The auxiliary contacts are a separate set of contacts that can be programmed (see Programming section B) to activate in dif-
ferent patterns when doorbox 1 or doorbox 2 is off hook. A momentary activation, a continuous activation while the doorbox is
in use, and a ring cadence pattern are available.
If an auxiliary contact activation time is programmed (two digits 00-10 followed by #03), when either doorbox is activated, the
auxiliary contacts will activate for the programmed time (.5 - 10 seconds). This is ideal for operating a doorbell or chime.
a. Timed Activation
If the auxiliary contact is programmed to continuously activate (11 followed by #03), while either doorbox is ringing or in use,
the auxiliary contacts will latch. This is ideal for controlling cameras, lights, etc.
b. Continuous Activation
If the auxiliary contact is programmed to custom ring cadence (“12 #03”) when doorbox 1 is activated, a repeating 1 second
on and 3 seconds off contact pattern is generated. If doorbox 2 is activated, a repeating double burst contact pattern is gen-
erated with 3 seconds off between patterns. Note: Ring cadence activation is not compatible with the Analog PABX/KSU
Station mode.
c. Ring Cadence Activation
Activate doorstrike relay 1 or 2 .............................................................
Continuously activate doorstrike relay 1 or 2 ........................................
Continuously de-activate doorstrike relay 1 or 2 ..................................
Activate opposite doorstrike relay ........................................................
Toggle relay from last position ..............................................................
Answer or disconnect a doorbox call ....................................................
Monitor doorbox 1 ................................................................................
Monitor doorbox 2 ................................................................................
* Pulse Dial/Flash Commands
✱✱ Pulse dial 3 or hook flash 3 times
✱ 1
✱ 0
✱ 2
✱ #
# Pulse dial 2 or hook flash 2 times
# 1
# 2
Touch Tone
Commands
4. Features
Note: When on the C.O. line, if a Touch Tone other than # is entered, any additional Touch Tones in that dial string will be
ignored. To regain control of the C-1000A, the phone must be momentarily placed on-hook.
* Note: Pulse dialing and flash commands are not compatible in the “Multiple Relay Activation” mode.
5. Keyless Entry/Postal Lock
When a momentary postal lock contact closure is made across terminals 6 & 7 (see Installation section D), the doorstrike 1 con-
tact will activate for the programmed time.
The first ringing line will ring to the “LINE OUT TO PHONES“ terminals 4 & 5 on the C-1000A. On outbound calls, the C-1000A will
default to the primary line (line connected to the “PHONE LINE INPUT“ terminals 2 & 3). To access the lines connected to “DOOR-
BOX 1“ terminals or “DOORBOX 2“ terminals, simply dial Touch Tones “#1” or “#2” respectively. Note: DIP switch 3 must be in the
OFF position.
B. Paging Controller
C. Line Concentrator
In this mode a paging system that provides talk battery (Viking PA-2A or CPA-7B) can be connected to one of the doorbox ports.
When the person on the phone wants to make a page, they can enter “#” and a 1 or 2 depending on which port the paging amplifi-
er is on. After the announcement is made, if a call was in progress, another “#” will return them to the phone conversation. If a door-
box is used in this mode, enter “✱✱” to activate the relay contact followed by a “#” to return to a caller on hold.








