CDX800 DESCRIPTION
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Expansion port RS485/RS422
Name of product
RS485
RS422
Power supply
External
10,8 .. 15,6 V
Internal
....
Supply power
Max. 30 W
Supply current
Max. 250 mA
Environment
Operating temperature
-25 .. +55 °C
Storage temperature
-40 .. +85 °C
Standards
Emission
EN 55022/B
Immunity
ETS 300 342
Safety
EN 60950
RS485 specifica-
tions
(EN 1434)
Max. devices (each 1,5 mA)
256
Max. bit rate
38400 bps
Overload detection
250 mA
Short circuit strength
Permanent
Max. total cable length (300Bd,
200nF/km)
1200 m
External or internal power supply of module Expansion port RS485/RS422 it is can
evoke by wiring of the jumper J2 and J3 on this module. If it is necessitated external power
supply of module, it must be by jumper J2 and J3 connection pin 2 - 3. Internal power supply is
evoke of connection pin 1 - 2 on jumper J2 and J3.
Interface behaviour of module Expansion port RS485/RS422 it is can evoke by wiring
of the jumper J4, J5 and J6 on this module. If it is necessitated RS485 of module, it must be by
jumper J4 and J5 connect and jumper J6 disconnect. If it is necessitated RS422 of module, it
must be by jumper J4 and J5 disconnect and jumper J6 connect.
Jumpers is placement them to a picture below (module Expansion port RS485/RS422
from TOP layer). We recommended internal power supply only in the event of, that it is not
possible ensure external power supply. If it is choose internal power supply, converter
RS485/RS422 is not galvanic separated.
25
