CONEL CDX 800 — технические характеристики модуля расширения RS485/RS422 [25/44]

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CDX800 DESCRIPTION

• 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.