Technical Features - Fermax MDS-2H Manual De Instrucciones

Decoder MDS-2H
Decoder MDS-2H

TECHNICAL FEATURES

•
Microprocessing system with internal watchdog.
•
System protected against short circuit by means of 900 mA electronic fuse, against polarity inversion (diode) and
against transitories (transit).
• Sx lines, - protected against short circuit by 500 mA electronic fuse and overtensions (varistors).
Supply Voltage:
12 Vdc ± 10 %
Typical Consumption:
Standby: 110 mA.
Audio: 190 mA.
Call: 260 mA.
To this 15 mA must be added (average standby consumption) for each 2-wire telephone connected to the 2-wire
Decoder.
Operating Temperature:
0º to 60 ºC
Connectors:
CN2, CN7: MDS installation bus.
+: 12 Vdc
-: Mass.
D1, D2: Decoder bus data (RS-485).
2: Audio from telephones to panel.
6: Audio from panel to telephones.
CN4: ICSP microcontroller programming connector.
CN3: PC linkup connection.
CN5: Telephonic connector. Audio test. A telephone handset/branch is connected.
S1,- / S2,- / ... / S8,-: Connection for 2-wire devices (no polarity). Maximum distance 100 m, with 0.5 mm
V, - : Connection for video distributor activation (references 2418 / 2419) in video door entry system
installations. Output protected by100 mA electronic fuse.
section cable.
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