Signal Generator Card - Sgc - Philips SM40 Instructions For Use Manual

5. SM40 MODULES
5.4

Signal Generator Card - SGC

Eurocard 10 x 22 cm with an 'a b' connector (2 x 32) containing a chime/alarm and test tone generator
which is preprogrammed with over 70 signals. Each signal can be activated by the CPC via the
communication line.
Attention signals, warning tones, time chimes, etc., are a vital part of any public address installation. The
Signal Generator Card (SGC) enables the user to select from a wide variety of greatly differing tones and
signals, and to route them to loudspeakers located in geographical or functional zones.
The Signal Generator is equipped with its own processor, and pre-programmed with over 70 different
signals, chimes, alarms, and test tones. A maximum of 8 SGCs may be used in each SM40 system.
Any signal may be programmed to precede an announcement from a Call Station or, dependent on its
character, may be used alone as an alarm, or warning tone.
The facility also exist to activate signals at specific times of the day or week via the timer built into the
Central Processor Card (CPC).
The signals listed are divided into the following general categories:
SIGNAL SET I
Attention and Time Signals
Alarm Signals
Signals in Set II are used during installation and for service purposes.
If a Signal Generator Card is being used by, for instance, an alarm tone in a particular zone, and someone
attempts to call another zone, the CPC will automatically select an alternative SGC to generate the chime
signal. Because of this it is important, when planning a system, to have enough SGCs and Matrix Cards
(to which they are connected) to enable it to operate normally in this kind of situation.
In order for the Central Processor to "recognise" a SGC, each unit is given an 'address'. This address setting
is accomplished by repositioning a jumper on the Signal Generator Card.
The 6.3 mm jack socket, located on the front of the SGC, allows generated signals to be heard on
headphones, while monitoring during Installer programming.
A red LED is located on the front edge of the card to indicate that an alarm tone is sounding; a yellow LED
indicates that an attention, general purpose or time signal is sounding; another yellow LED indicates that
the unit is in communication with the Central Processor, and 3 green LEDs advise that adequate supply
voltage is present.
A screwdriver potentiometer, mounted on the card, presets the alarm signal volume level, and another sets
the level of the other signals.
SIGNAL SET II
Test Signals
LBB 1354
SIGNAL SET III
Attention and Time Signals
Dedicated German Alarm
Signals
5-11
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