CEL-MAR ADA-4040 Manual do utilizador - Página 4

Procurar online ou descarregar pdf Manual do utilizador para Repetidor CEL-MAR ADA-4040. CEL-MAR ADA-4040 12 páginas. Separator-repeater rs-485/rs-422

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ADA-4040

2.2. DESCRIPTION

ADA-4040 separator-repeater is a device used for separation and extension of RS485/422 bus, about next segment 1200m (without

interference with data format). The distance is being reduced in case of large baud rate (over 115,2 Kb). The separator-repeater can

be used for communication with other, remote devices with RS485/422 interface eg controllers or scales; using the lines

RX+,RX-,TX+/A,TX-/B.

The ADA-4040 transmits data at baud rate up to 230,4 kbps, through four or two twisted-pair connected to a terminal block. To

RS485/422 bus created by the use ADA-4040, it is possible to connect 32 devices, operating in half duplex or full duplex mode. The

1kVDC or 3kVDC galvanic isolation and ~3kVDC optoisolation in signals line separate RS1/OUT (RS485/RS422) interface from

RS2/IN (RS485/RS422) interface. Protect a device connected to RS2/IN from overvoltage, which appear on RS485/422 bus,

connected to RS1/OUT and in the power-circuit.

Over-voltage protection on each RS485/422 lines, was made on the base overvoltage LED's and the fuses. The ADA-4040 should be

powered from the power supply stabilized voltage with a voltage in the range 10 - 30 VDC and minimum power 2W.

RS2

RS1

2.3. ISOLATION

The separator-repeater ADA-4040 has (depend on version) 2-way or 3-way and 1kV= or 3kV= galvanic isolation. The descriptions are

in section VERSIONS.

2-WAY GALVANIC ISOLATION

RS2

RS485/RS422

RS-485 4-wires

or RS-422

RS-485

2-wires

(SW1)

(RS485/RS422)

ADA-4040

REPEATER RS-485/RS-422

PWR

RS485-RS1

(RS485/RS422)

10 – 30

VDC

RS-485 4-wires

or RS-422

53mm

Fig 1. View and location of SW1 micro-switch (under the cover)

RS1

RS485/RS422

POWER SUPPLY

10 - 30VDC

Power Supply

10 - 30 VDC

RS-485

2-wires

3-WAY GALVANIC ISOLATION

RS2

RS485/RS422

POWER SUPPLY

10 - 30VDC

Fig 2. Isolation diagram

62mm

RS1

RS485/RS422