When a visitor is at the
K-1200
, they just need to find the name of the tenant they want to visit on the directory and press the associated
button. The
K-1200
will then seize the phone line and speed dial the number programmed for that name. When the tenant answers the
call, they can let the visitor in by entering the Door Strike Code on their telephone keypad. The tenant can converse with the visitor for
up to 10 seconds after the Door Strike Code is dialed (to verify the visitor has been granted entry). The
K-1200
is able to determine if the
door strike command is coming from the apartment or the caller, to prevent entry using a hand held touch tone dialer. If the tenant chooses
not to let the visitor in, they can simply hang up the phone. The
K-1200
will drop the line when busy, reorder, CPC signals are detected,
when programmable maximum call time out, silence time out, maximum ring timers expire or 10 seconds after a door strike activation.
Only the buttons that have a programmed phone number are active (except “#” when used for keyless entry). After a button is
pressed, and the call is initiated, it can be canceled by momentarily pressing any button on the panel.
7
This timer sets the maximum amount of time the
K-1200
will look for the call to be answered. If this timer expires and the tenant has
not answered, the call will be terminated or the
K-1200
will dial a second phone number (if programmed). The factory setting is 20
seconds, and to disable this feature, enter “
00
” into position 43.
J. Maximum Ring Time
This time out is started once the call has been connected and is reset every time audio is detected on the phone line. If it expires,
the call will be terminated. This is useful on systems that are silent when the tenant hangs up to assure the
K-1200
disconnects. It
is factory set to 10 seconds and can be disabled by entering “
00
” in position 44.
K. Silence Time Out
This time represents the amount of time the
K-1200
will delay before switching back to the microphone mode after it was in the
speaker mode (VOX switching time). It is in 100 msec increments and stored in position 45.
L. Talk/Listen Delay
On some phone lines, a faster rate of dialing is allowed. The dialing speed of the
K-1200
can be altered to take advantage of this
faster rate. The normal dialing speed is 5 digits per second and is selected by entering “
#30
” (factory setting) while in programming.
To increase the speed to 10 digits per second, enter “
#31
”. If the faster rate is selected, be sure to test each number to assure proper
operation.
M. Dialing Speed
The
K-1200
is factory set to hang up if continuous audio is detected after dialing. In most situations this would happen if the tenant
hung up and the service that the
K-1200
is connected to provides a dial tone following the hang up. In some instances due to noisy
lines or loud background noise, the call may be terminated before the tenant hangs up. If this occurs, enter “
#33
” when in
programming. This will disable return to dial tone feature and stop the
K-1200
from hanging up prematurely. To enable this feature
enter “
#32
” when in programming.
N. Hang Up on Return to Dial Tone
See Operation for a functional description of this feature. Tenant Initiated Entry is disabled by default. To enable it, enter programming
(see
Programming
section
A
). Enter
#38
. Also, DIP switch 1 must be turned ON and left in this position to enable the
K-1200
to
answer incoming calls. To disable Tenant Initiated Entry, enter
#37
.
Security considerations with Tenant Initiated Entry:
The
K-1200
door entry system is designed with security in mind, which is
the reason an access code is recommended in cases where Tenant Initiated Entry is allowed. To understand the need for an access
code, consider the following example. A person walks up to the entry and pushes one of the directory buttons on the
K-1200
. The
unit looks up the number associated with that directory position and dials it. The phone inside the tenant’s apartment rings, and is
answered by someone who happens to be a guest in the tenant’s apartment. The guest notices that the tenant’s phone is displaying
the caller ID of the number that just called, which is the number of the
K-1200
. They jot the number down. The guest can now call
the
K-1200
at a later time, if DIP switch 1 is on, Tenant Initiated Entry is allowed, the access code is disabled, and they know the
door strike code, they can let themselves into the building. Note that by default, Tenant Initiated Entry is not allowed, but if this
feature is allowed, it is important to program an access code (see
C. Access Code
(
memory location #48
).
O. Tenant Initiated Entry
To clear all speed dial positions and set all modes back to factory setting, enter “
###
“ while in programming.
Caution
, all previous
programming will be lost
. Normally when the
K-1200
is in the programming mode, it will hang up the line if no commands are detected
for 20 seconds. To hang up immediately, enter “
##7
”.
P. Special Commands
Two POTs are provided to increase or decrease speaker volume and microphone sensitivity. In certain noisy locations the microphone
sensitivity may need to be decreased as shown below.
Caution:
Setting the microphone gain too high may cause distorted audio,
prevent the distant party from breaking over and inhibit second number redialing.
Q. DIP Switch Programming / Speaker and Microphone Adjustments
Microphone
Sensitivity POT
ON
OFF
1 2 3 4
Speaker
Volume POT
1 2 3
on
4
Turn POTS clockwise to increase
(as viewed from the back of the board).
Switch
Position Description
1
ON
Incoming calls answered (factory setting)
1
OFF
Incoming calls not answered
2 & 3
ON
Audio Detection normal (factory setting)
2 & 3
OFF
Audio Detection more sensitive
4
ON
Learn Mode - Any incoming calls are
automatically entered into the
programming mode, no security code
required. Use this option if you have
forgotten your security code.
4
OFF
Normal operation mode (factory setting)
Note:
On some phone lines, busy and ring back tones may be very soft. In these installations, set DIP switches 2 and 3 to OFF.
Operation
