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 respon-
sibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate such changes.
DOD# 172
ZF302800 Rev B
Printed in the U.S.A.
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Single Gang and Double Gang Entry Phones Available in 5 Attractive Finishes
E-40-SS
“Brushed Stainless Steel”
(similar to brushed nickel)
Compact single gang entry phone.
See
DOD# 187
.
E-60-PB
“Polished Brass”
(with clear gloss powder paint to
prevent tarnishing)
Double gang entry phone.
See
DOD# 206
.
E-65-WH
“Satin White”
(satin white powder paint)
Double gang entry phone with built-in
color video camera. See
DOD# 203
.
E-75-SS
“Brushed Stainless Steel”
(similar to brushed nickel)
Double gang entry phone with built-in
proximity card reader and color video
camera. See
DOD# 208
.
E-70-BK
“Satin Black”
(fine texture satin black powder paint)
Double gang entry phone with built-in
proximity card reader. See
DOD# 207
.
The
C-250
has a Trigger Input for an external Postal Lock switch, or a Request to Exit (REX) switch. The switch must
have a momentary, normally open contact. Once the
C-250
detects a contact closure on terminal positions 8 and 9, the
door strike will be energized for the amount of programmed Door Strike Activation Time. If the contact is still made after
the programmed time is up, the
C-250
will re-energize the door strike relay and go through another Door Strike timing
cycle.
If DIP Switch 2 is in the ON position, the Trigger Switch input now controls whether or not the house phone will ring
when the entry phone goes off hook. If the Trigger Input is shorted, the house phone ringing will be skipped (Immediate
Call Forward Mode), if open, the
C-250
will ring the house phone when the entry phone goes off hook. The touch tone
command
QQQ
overrides the status of the Trigger Input when DIP Switch 2 is ON.
D. Activating the Door Strike Relay
Anytime the house phone is connected to the entry phone, the tenant can actuate the door strike by entering the door
strike command on their touch tone keypad. The
C-250
determines if the touch tones are coming from the house phone
or the entry phone and only accepts commands from the house phone. Once a valid command is detected, the door
strike relay will actuate for the amount of programmed Door Strike Activation time. If an invalid command is entered,
wait a few seconds and try again. The
C-250
will wait 3 seconds after any touch tone entered to assure no more tones
are coming, then it looks for a command match. The
C-250
can be programmed to handle either a 1 digit or 2 digit Door
Strike Command (position #41). If a single digit is being used, the minimum touch tone length is 100 milliseconds.
During this time the
C-250
must determine if the touch tone is coming from the entry phone or the called party. If the
C-250
is having trouble detecting touch tones from a remote phone because the tones are too fast, use a 2 digit door
strike command. When using 2 digits, the touch tones can be as fast as 50 milliseconds, but the entry phone will be
dropped after the first digit is detected. The
C-250
can then be sure that the touch tones are coming from the called
phone.
E. Trigger Input
E-50-BN
“Oil Rubbed Bronze”
(satin dark brown powder paint
with fine copper metallic)
Compact single gang entry phone with
built-in color video camera. See
DOD# 191
.
