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MT4000-2 MT10000-4
ISMTUK_06_06.doc
Pag. 9
Wiring notes and recommendations:
•
Maximum line lengths of readers 1 and 2 (control unit reader) is 100 meters
•
Maximum RS485 bus length is 1000 metres.
•
Maximum RS232 line length of 10 metres.
•
Only use STP class 5 or FTP class 5 cables or superior.
•
Connect reader – control unit wiring shielding to the GND of the control unit to which the wiring
is connected.
•
Connect RS485 control unit – control unit wiring shielding with each other.
•
Never connect reader – control unit and control unit – control unit wiring shielding with each
other.
•
Never route system wiring in proximity to power cables.
•
Never exceed 1A consumption when using external readers.
•
Each control unit should be powered by the appropriate ALI13V8A3 or an equivalent power
supply unit with similar characteristics ( 13.8VDC, 3A)
•
Any electric locks or external relays must be powered separately (see next paragraph) and must
be fitted with tension suppressors (included)
RS232, USB etc.
Telephone
line
IP Ethernet
RS232
INT485C
INT485M
INTETHERNET
RS485
Modem
Modem