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  • Computer interface: USB V1.1 2.0 Plug and Play.
  • Operational system virtual serial port driver.
  • Supports Windows 98/ME/XP/2000/CE, MAC & Linux 2.4.20 or superior.
  • Field Interfaces: TTL logic
  • Transmission rate: from 300 bps to 1Mbps.
  • Maximum TTL cable length : 15 m
  • Power: from the USB port.
  • Consumption: <100 mA.
  • logic protection: 600W.
  • USB connection: Mini-B connector. 120mm cable with the module.
  • TTL logic connector: DB 9 Male type accepting
  • ABS enclosure: 55 x 35 x 15 mm(not include cable)
  • Operating environment: 0 to 70°C, 10 to 90% relative humidity, non-condensing.

The TTL logic termination of the Interface is implemented as DB9 male connector. The pin assignments for the connector can be found in the following table as well as on a sticker applied to the unit.

TTL logic Pinout at DB9 Male









Wiring examples



USB to TTL Interface Converter


The AN-USB-TTL module is a cost-effective way to convert

TTL signal a USB interface. When connected to a PC USB port the AN-USB-TTL module is automatically detected and is installed as a native COM port which is compatible with any existing serial communication application. When using USB hubs thus allowing a hassle free configuration of a multi serial system without any IRQ or DMA configuration. They have 600W protect between the USB port and TTL protects the PC from spikes or possible misconnections in the communication bus.

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