Du line
Fieldbus
Installationbus
Specifications are subject to change without notice (09.09.05)
1
Dupline
is a registered trademark. A product of the CARLO GAVAZZI Group
Keyboard for arming and disarming alarms in buildings
Wall mounting
Factory-coded addresses
Tamper switch
48 user passwords
Red signal LED
Supply: 12 VDC
Product Description
Ordering Key
Type: Dupline
Housing
Transmitter
Number of inputs
Function
Power supply
Type Selection
Supply
Ordering no.
12 VDC
G 8520 2270 712
G 8520 2270 712
Indoor Keyboard
Type G 8520 2270
The programmable indoor
keyboard is mainly used for
arming and disarming alarms
in buildings. By entering a
personal four digit-code, it is
possible to switch off the
alarm before entering the
building. Several keyboards
can be connected via Dupline.
Mode of Operation
Factory settings
The following 3 addresses are
programmed at the factory:
- Tamper switch
O5
- Alarm (on/off)
O6
- Red LED
O7
as well as the following two
codes:
- Installation password
(code #00):
1260 followed by #
- User password
(code #01):
1234 followed by #
It is possible to have 48 differ-
ent user passwords.
A 2 s pulse alarm is pro-
grammed at the factory which
makes it possible to use more
than one keyboard. When the
pulse alarm is active, the
delay determines how fast the
alarm is activated or deacti-
vated after the code has been
entered.
Note: For security reasons the
codes must be changed after
installation. Delete all codes
by pressing the button # dur-
ing power-up. Program the
new codes according to the
description below.
Tamper switch
The tamper switch is activat-
ed by a spring. If the panel is
opened, the switch deacti-
vates and the alarm starts.
Check that no wires obstruct
the proper function of the
tamper switch.
Relays
RLY2 is used for the pulse
alarm. When entering new
user passwords the red LED
lights if the code activates
RLY2.
When programming mode is
terminated with the *-key, the
keyboard operates. Enter the
user password followed by #
to set the keyboard on stand-
by.
Supply Specifications
Power supply
Overvoltage cat. III (IEC 60664)
Rated operational voltage
12 VDC 10%
Reverse polarity protection
No
Current consumption
60 mA
Dielectric voltage
Supply - Dupline
1000 V
Du line
Fieldbus
Installationbus
2
Specifications are subject to change without notice (09.09.05)
Dupline
is a registered trademark. A product of the CARLO GAVAZZI Group
G 8520 2270
Wiring Diagram
NC
C
C
NC
NO
NO
SAB
RLY 1
RLY 2
12
0
L1
+
-
ASIC
IC
+
-
DUPLINE
Red:
+12 VDC
Black: 0
V
12 VDC
Brown wire
controls LED
Wires for alarm:
Orange:
Alarm
Yellow:
Tamper switch
Black:
Common
Orange
Black
Yellow
Tamper switch
Mode of Operation (cont.)
New user password
1
Enter the installation pass-
word (1260 #). LED1 and
LED2 flash.
2
Enter new user password:
01 nnnn # - activate key 2
until LED2 lights, then
press #.
3
"01" is the number of the
password (of 48 possible),
"nnnn" is the new user
password. LED2 indicates
that the password acti-
vates RLY2 (pulse alarm).
4
Press * to exit the pro-
gramming mode or wait
12 seconds.
New installation password
1
Enter the old installation
password (factory-set at
1260 #). LED1 and LED2
flashwhen the password is
accepted.
2
Enter the new installation
password: 00 nnnn # 02 #,
where "nnnn" is the new
installation password.
"02" sets the delay for
RLY2 to 2 seconds. When
using pulse alarm, the
delay time determines
how fast the alarm is acti-
vated/deactivated after
the password has been
entered. This delay should
be as short as possible.
If the delay time (02) is set
to 00 the keyboard will not
give pulse alarm but level
alarm.
3
Press * to exit the pro-
gramming mode or wait
12 seconds.
Delete all passwords
1
Activate the #-key during
power-up. LED1 and
LED2 start to flash.
All passwords are deleted.
2
Enter the new installation
password: 00 nnnn # 02 #
(see details described
earlier).
3
Enter the new user pass
word: 01 nnnn # - activate
key 2 until LED2 lights,
then # (see details
described earlier).
4
Press * to exit the pro-
gramming mode (or wait
12 seconds).
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