12
3
Technical specifications -
keypad H85/TTD with interface H85/DEC
INTERFACE SUPPLY VOLTAGE
24 Vac-dc; 12 Vdc
POWER CONSUMPTION
1 keyboard 25mA
1 ke interface on stand-by 50mA
1 ke interface with active relay 60mA
MAXIMUM NUMBER OF CONNECTABLE KEYBOARDS
4
NUMBER OF OUTPUTS AVAILABLE
4 for controls; 1 for alarm
TYPE OF OUTPUT ACTIVATION:
impulsive (activation time: 350ms)
OUTPUT TYPE
relay, pure contact
MAXIMUM COMMUTABLE POWER
(BULBS EXCLUDED)
load in ac-dc: 60VA/24W
maximum current: 1A
RELAY ACTIVATION DELAY
100ms
NUMBER OF STORABLE USER CODES ON THE INTERFACE
500
MAXIMUM NUMBER OF DIGITS PER USER CODE
6
MINIMUM NUMBER OF DIGITS PER USER CODE
3
MAXIMUM CABLE LENGTH FROM INTERFACE TO KEYBOARD
100m (two-wire cable with 0.5mm2 cross-section)
KEYBOARD BACKLIGHT
6 white LEDs, with two intensity levels
OPERATING TEMPERATURE
-10°C ... +55°C
PROTECTION RATING
IP54
PRODUCT DIMENSIONS
H85/TTD/I
H85/TTD/E
H85/TTD/TRIX
H85/DEC/BOX
size in mm. 75x77x60 Weight: 104g
size in mm. 75x77x41 Weight: 100g
size in mm. 75x98x58 Weight: 240g
size in mm. 158x119x76 Weight: 279g
3.1
Specifications - keypad H85 / TTD with access control
KEYPAD POWER SUPPLY
12 Vdc; 24 Vdc
COMMUNICATION PROTOCOLS
Wiegand 26 bit / 37bit / 50bit
ISO2 (“magnetic stripe”)
TYPE OF OUTPUT
digital
OUTPUT VOLTAGE LEVELS
5Vdc at rest (passive, via resistance of 2k7 internal pull-up)
0Vdc (active, transistor forced)
MAXIMUM NUMBER OF CONNECTABLE KEYPADS
5 (with the same operating mode)
4
Keyboard features - with interface
H85/DEC
The keys
0
to
9
along with the keys
*
and
#
allow the
activation of the change of password sequences, the save/
delete code, the full deletion of codes and more. Four of
the keys have a dual function since they are also used to
activate one of the A, B, C, D interface outputs:
• Key
1
/
A:
Activation of output
OUT_A
• Key
4
/
B:
Activation of output
OUT_B
• Key
7
/
C:
Activation of output
OUT_C
•
*
Key /
D:
Activation of output
OUT_D
The keyboard has a green and a red LED (see
Figure 1,
Detail
A:
LV
and
LR,
respectively), and a buzzer: these are
used to send out messages while typing and during the
various stages of operation.
The keyboard has a 6 white LED backlight, which brightens
when you press one of the keys (active keyboard) and dims
when it returns to stand-by mode.
Description of the terminals (
Figure 8
):
1
SYNC
, positive of the power supply with sync signal
2
COM negative of the power supply & SYNC
3,4
Not available
5,6,7
Not used with H85/DEC interface
4.1
Interface features
The activation of the contact is always impulsive, lasting
350ms: keeping your finger on the button does not allow
you to extend the activation.
The
H85/DEC
(
Figure 5
) interface includes two indicator
LEDs for normal operation (
L1,
green and
L2,
red) and 4
LEDs that send out messages during particular phases
of operation (activation of the output relay; keyboard
assignment during programming mode).
There are 4 command outputs available
OUT_A,
OUT_B,
OUT_C
and
OUT_D
associated with the corresponding
keys 1/
A,
4/
B,
7/
C,
*/
D
, and an alarm output (
ALRM
,
which is normally a disabled contact that activates when a
malfunction is detected).
Description of terminals:
