MODEL: R2K-1

R2K-1 SPECIFICATIONS

ES-6701 Rev.5 Page 1/3

https://www.m-system.co.jp/

R2K Series

RS-232-C/RS-485 CONVERTER

Functions & Features

• Bidirectional converter between RS-232-C and RS-485

used when connecting Modbus RS-485 devices to a PC

41 [1.61]

110

[4.33]

100 [3.94]

B RATE

RUN

ERR.1 ERR.2

CONFIG

mm [inch]

MODEL: R2K-1-[1]

ORDERING INFORMATION

• Code number: R2K-1-R

Consult Factory for AC power input.

[1] POWER INPUT

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

GENERAL SPECIFICATIONS

Connection

RS-232-C: 9-pin D-sub connector (male, lock screw No. 4-

40 UNC); A ‘Straight’ type cable connecting to the PC is to

be prepared by the user.

RS-485, power input: Euro type connector terminal

Isolation: RS-232-C to RS-485 or power

Data, parity & stop bit setting: DIP switches at the bottom

Baud rate setting: Front rotary switch

RUN indicator LED: Green light blinks in normal conditions.

ERR.1 indicator: Red LED blinks with RS-232-C overrun

error; ON with parity framing error.

ERR.2 indicator: Red LED blinks with RS-485 overrun error;

ON with parity framing error.

COMMUNICATION

Baud rate: 300, 600, 1200, 2400, 4800, 9600, 14.4 k,

19.2 k, 28.8 k, 38.4 k, 57.6 k, 76.8 k (bps)

Data bit: 7 or 8 bits

Parity: Odd, even or none

Stop bit: 1 or 2 bits

Communication: Half-duplex, asynchronous, no procedure

Data delay time: 300 microseconds

■ RS-232-C

Standard: Conforms to RS-232-C, EIA

Transmission distance: 10 meters max.

■ RS-485

Standard: Conforms to TIA/EIA–485–A

Transmission distance: 500 meters max.

Transmission media: Shielded twisted-pair cable (CPEV-S

0.9 dia.)

INSTALLATION

Power consumption

•DC: Approx. 2 W

Operating temperature: -5 to +60°C (23 to 140°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 150 g (0.33 lb)

PERFORMANCE

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 500 V AC @ 1 minute

(RS-232-C to RS-485 or power)

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

RoHS Directive