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USB to Isolated RS-485 Converter
Model: tM-7561  
  • 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/Linux
  • Tiny packaging fits on your DIN-Rail
  • No External Power Supply required
  • Automatic RS-485 Direction Control
  • Operating Temperatures, -25 °C ~ +75 °C
  • Low power consumption
  • Cost-effective Converter
The tM-7561 is a cost-effective 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.
Models tM-7561 I-7561
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-effective, Entry-level Entry-level
Driver Windows 98/ME/2000/XP (32/64-bit)/Vista (32/64-bit)/7 (32/64-bit)/8 (32/64-bit)/2012/10 (32/64-bit)/Linux
USB Compatibility: USB 1.1 and 2.0 standards
RS-485 Data+, Data-
RS-485 Transfer Distance Max. 1,200 m at 9.6 kbps; Max. 400 m at 115.2 kbps
(Belden 9841 2P twisted-pair cable, if different cables are used, the transmission distance may change)
Self-Tuner Asic Inside Yes
Speed 300 ~ 115200 bps
Connection RS-485 Removable 7-Pin Terminal Block
USB Type B
Cable Included CA-USB18 (1.8 m Cable) x 1
LED Indicators
Power Yes
Input Voltage Range +5 VDC from USB
Power Consumption 0.4 W
Casing Plastic
Flammability Fire-Retardant Materials (UL94-V0 Level)
Dimensions (W x H x D) 52 mm x 87 mm x 27 mm
Installation DIN-Rail
Operating Temperature -25 °C ~ +75 °C
Storage Temperature -30 °C ~ +75 °C
Humidity 10 ~ 90% RH, non-condensing
tM-7561 CR USB to Isolated RS-485 Converter (RoHS)
Include Cable CA-USB18 (1.8 m Cable) x 1
USB-2560 CR Industrial 4-port USB 2.0 Hub
CA-USB18 USB Type A to Type B Cable

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