ICP DAS tM-7561 Product information

¯Features

Fully Compliant with the USB 1.1/2.0 (High Speed)

Power and data flow indicator for troubleshooting

2500 VDC Isolation Protection on the RS-485 side

Driver Supports Windows 98/ME/2000/XP (32/64-bit)/

Vista (32/64-bit)/7 (32/64-bit)/8 (32/64-bit)/10 (64-bit)/
Linux

No External Power Supply required

Automatic RS-485 Direction Control

Operating Temperatures, -25 °C ~ +75 °C

Low power consumption

Cost-eective Converter

Tiny packaging ts on your DIN-Rail Mounting

tM-7561

Tiny USB to Isolated RS-485 Converter

®Introduction

The tM-7561 is a cost-eective USB to RS-485 converter. Connecting the tM-7561 to a PC, you get one RS-485 port that allows you

to access RS-485 devices through the USB interface. Like the I-7520, the tM-7561 contains "Self-Tuner" chip auto-tunes the baud
rate and data format to the RS-485 network. The tM-7561 module derives its power from the USB port and doesn't need external
power adapter.

®Comparison Table of Repeater

Models Name tM-7561 I-7561/I-7561U

Serial Interface Only RS-485 RS-232/422/485
Dimensions (W x H x D) 52 mm x 87 mm x 27 mm 72 mm x 115 mm x 35 mm
Remarks Cost-eective, Entry-level Entry-level

®Software

Driver Windows 98/ME/2000/XP/Vista (32/64-bit)/7 (32/64-bit)/8 (32/64-bit)/8.1 (32/64-bit)/10 (64-bit)/Linux

®System Specications

Models tM-7561

Interface

USB Fully Compliant with the USB 1.1/2.0/3.0
Serial

Interface

Serial Interface Transmission
Distance

Self-Tuner Asic Inside Yes
Speed 300 ~ 115200 bps

Connector

Cable Included CA-USB18 (1.8 m Cable) x 1

LED Indicators

Power Yes

Power

Input Voltage Range +5 VDC from USB
Power Consumption 0.4 W

Mechanical

Casing Plastic
Dimensions (W x H x D) 52 mm x 87 mm x 27 mm
Installation DIN-Rail Mounting

Environment

Operating Temperature -25 °C ~ +75 °C
Storage Temperature -30 °C ~ +75 °C
Humidity 10 ~ 90% RH, non-condensing

RS-422 –
RS-485 Data+, Data-

Max. 1,200 m at 9.6 kbps; Max. 400 m at 115.2 kbps

(Belden 9841 2P twisted-pair cable, if dierent cables are used, the transmission distance may

change)

RS-422/485 Removable 7-Pin Terminal Block
USB Type B

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®Applications

I-7510

COM3

I-7000 Series

tM-7561
USB to RS-485 Converter

SST-2450

RS-232

RS-485

I-7520

USB

iP-8411

SST-2450

Baud Rate: 115200

Data Format: 10 Bits

Baud Rate: 38400

Data Format: 11 Bits

Programmable

Power Supply

I-7521

I-7510AR

RS-232

RS-485

RS-485

RS-485

RS-232

Wireless Modem

I-7188

RS-232

RS-485

RS-485

Baud Rate: 19200

Data Format: 10 Bits

RS-485

RU-87P4 I-7000

Touch Screen

(TPM-1010 )

SST-2450

SST-2450

COM3

RS-485

USB

to

Series

Chip

RS-485

Driver

RS-422

Driver

DATA1-

DATA1+

RxD1 +/-

TxD1 +/-

VBUS

DATA0-

DATA0+

GND

ISO.GND

2500 V

DC

Photo-isolation

DC DC

2500 VDC Isolation

Self-Tuner

ASIC

®Internal I/O Structure

PC

iP-8411

RS-232

I-7520

RS-485

®Pin Assignments

USB

I-7510

tM-7561

I-7000

SST-2450

SST-2450

52.0

tM-7561

USB

Terminal resistor

Off

On

Rx/TxPWR

DATA+
DATA­N/A
N/A
N/A
N/A
ISO.GND

®Dimensions (Units: mm)

27.0

19.0

35.4

22.8

6.7

Left Side View Right Side View

®Ordering Information

87.0

77.4

Front View

Rear View

tM-7561 CR Tiny USB to Isolated RS-485 Converter with CA-USB18 Cable (RoHS)

®Accessories

USB-2560 CR 4-port Industrial USB 2.0 Hub (RoHS)

ICP DAS CO., LTD Website: https://www.icpdas.com Vol.

2021.02

Top View

Bottom View

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