Digital Output Board, 7 Channels, Current Sink Output, USB Bus-powered

Tokyo Devices
Model Number:
Released on:
Mar 2023

Relay and Digital I/O    
TDFA50507 Top View
TDFA50507 Top View

TDFA50507 is a 7-channel USB digital IO output board. 12/24V signals can be output to various devices with simple commands. With electrically isolation it has safety and noise resistance.


※ Only on the USB side. An external power source is required for the device.


The equivalent circuit of the output section is as shown in photo 2 (only 3 contacts are shown). Connect an external power source to the common plus and common minus terminals, and connect the negative side of the desired output target to each contact. Each contact is an open collector output. When a contact is turned ON from the USB side, the transistor is turned ON via the photocoupler.

Control Command

Use the simple command-line control command "TD-USB", which is available for both Windows and Linux.

% td-usb tdfa50507 set GPIO_STATUS=3

Where 3 in binary is 000011, meaning contact points 1 and 2 are turned on.

For more information, please see the instructions for using TD-USB at the link provided.

The demo application "TD-AppKit" allows you to change the status of each contact point from the screen (Windows only). You can download it from the link below.

Additional Requirements

Documents and software

check Available

In Stock: 10

Qty Price
1 40.00 USD
10 35.57 USD