Pagina 124
Technical specification
Doorphone board
for connecting traditional doorphones (4+1)
. ringer inputs
2
. speech input
1
Programmable relays
2 (up to 10A absorption at 24V)
Configurable digital outputs
1
External amplifier connection
External music source connection
Local programming via telephone or USB port (software provided)
Remote programming via V.21 MODEM
Firmware update USB port
Lines
User line resistance max 200 ohm
Type of cable: two-pair
Transmission equivalent:
internal-external:
from 300 Hz to 3400 Hz 1,4 dB
internal - internal:
from 300 Hz to 3400 Hz 1,4 dB
Dimensions
Hi-Pro 280
230 x 210 x 65 mm
Hi-Pro 280 Weight
1,5 Kg
Hi-Pro 412 Rack (ISDN)
350 x 260 x 48 mm (1 unit hindrance)
Hi-Pro 412 Rack (ISDN) Weight
3,3 Kg
Safety system
EEPROM memory for data protection in the event of power cut
Watch-dog system
Cooling by natural convection