10
OPERATION OF SWITCHBOARD
Introduction
Switchboard Art. 945B can operate in two modes: internal and external mode. To select the mode required use INTER-
NAL/EXTERNAL key to select EXTERNAL mode or INTERNAL mode. The lamp "EXTERNAL" indicates the status of the swit-
chboard (lamp "on" = external mode; lamp "off" = internal mode). In EXTERNAL mode all calls from the main entrance panel
are routed directly to the interphone/monitor cable riser without being intercepted by the switchboard.
In this mode however, it is still possible to receive porter’s calls, make direct calls to the switchboard and receive notification of
a conversation between the main entrance panel and interphone (monitor).
In INTERNAL mode all functions are activated and authorised by the switchboard operator.
EXTERNAL operation (lamp EXTERNAL "on").
-
Call from entrance panel to user:
when the switchboard is in external mode it is possible to call internal units directly
from the entrance panel without the switchboard intercepting the call. The switchboard however is notified that a conver-
sation is in progress by illumination of the LINE indicator lamp and by wiewing the number in transit. If you wish to inter-
rupt the line from the switchboard, return the switchboard to INTERNAL mode and press button R. If instead, you wish to
enter the conversation, return the switchboard to INTERNAL mode, transfer the code in transit by pressing push-button
(8<>8) and then push button
. Entry into a conversation by the switchboard operator is announced to the units by an
acoustic signal. To exclude the switchboard from the conversation, repress button
. To release the main entrance panel
door lock from the switchboard, press the lock button
.
-
Direct call to switchboard from main entrance panel:
when the switchboard is in EXTERNAL mode it is possible to
communicate with the switchboard from the entrance panel using the direct call number (see parameter "SYSTEM NUM-
BER"). Each time this number is used, the switchboard activates the call signal, displays "CALL YOU FROM EXT." on LCD
screen and automatically connects up to the entrance panel by activating its phonic line and monitor. To open the entrance
panel door press
buttons .
-
Porter call:
when the switchboard is in EXTERNAL mode calls to the switchboard by monitors or interphones are recorded
and displayed on the LCD screen. Only the acoustic call signal is disabled. The switchboard must be set to INTERNAL
mode to manage the calls.
INTERNAL operation ("EXTERNAL" lamp "off").
-
Call from switchboard to internal unit:
to make calls from the switchboard to one of the internal units, use the numerical
keys to enter the required user is number and press the bell button
. After placing the call, the switchboard will con-
nect its phonic line and activate its video camera and monitor (which displays the image filmed by the switchboard video
camera). The switchboard frees the line with the internal unit if no handset is raised within the set reply time (see “answers
time” parameter) or the maximum conversation time (see “conversation time” parameter) elapses if the user does answer
the call. When the reply time or maximum conversation time elapses the switchboard automatically interrupts the connec-
tion by switching off its monitor and video camera. The line is also disconnected if the handset is replaced before the per-
mitted conversation time has elapsed - the switchboard frees the line 5 seconds after the handset has been replaced. The
operator may also disconnect a conversation at any time by pressing button R on the switchboard.
-
Call from main entrance panel to switchboard:
when the switchboard is in INTERNAL mode, all incoming calls from the
entrance panel are intercepted by the switchboard which automatically switches to the entrance panel by activating its
monitor. Calls to the switchboard are indicated by an acoustic signal and by viewing the called number on display.
When the switchboard switches to the entrance panel it is possible to release the door lock. If the switchboard is commu-
nicating with an internal unit, and a call is routed from the door station to the switchboard (see device code parameter) the
message "call you from ext." appears on display. If a user is number is digited at the main entrance panel (not the same as
the switchboard "SYSTEM NUMBER"), the call will be displayed on the LCD screen with the called user’s number.
To communicate with the entrance panel, the switchboard can be switched to the entrance panel using button
without
disconnecting the interphone or monitor. When the switchboard is connected to the entrance panel the lamp "EXTERNAL"
illuminates.
- Call from entrance panel with switchboard in internal mode:
when the switchboard is in INTERNAL mode, each inco-
ming call from the entrance panel is intercepted by the switchboard which then routes the call to the relative internal unit.
After receiving a call from the entrance panel, the operator calls the relative internal unit by pressing push-buttons "8<>8"
and bell button
. When the internal unit answers the call the operator can then transfer the line to the panel by pressing
button
(the lamp "EXTERNAL" illuminates).
While the entrance panel is waiting to be connected to the required internal unit, the switchboard transmits an acoustic
"hold" signal to the entrance panel which lasts for the duration of the conversation between the switchboard and internal
unit. This signal terminates as soon as the line is transferred to the entrance panel.
