[USB-208] USB Analog Multiplexer 4:1 Under development

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Analog multiplexer with 4 switchable channels
Switch RS-232C, RS-422/485 signals by USB, external input or manual switch

Overview

USB-208 is a multiplexer that can switch one common port to one of four channels. 
RS-232C, RS-422/485, and other analog signals can be switched by the following three ways.

  • Sending simple commands from a PC via USB
  • External input, no-voltage contact input or DC input can be selected
  • Switching manual switch on the side panel

It supports analog signal voltage range of ±25V and data rate up to 20Mbps.
The system can also be used to save labor in the inspection process. 
It allows four units in a single setting during automatic equipment inspection.

USB-208

Features

  • 4 channel analog signals, RS-232C, RS-422/485 and others, can be switched automatically
  • Supports analog signal up to ±25V
  • Supports max. 20Mbps
  • Switch by sending simple commands from a PC via USB
    You can use our free Application or general purpose terminal software such as TeraTerm.
  • Switch by External input
    no-voltage dry contact input or 5 to 24V DC input
  • Manual switching by using the switch on the main body of the unit
  • Controllable from embedded Linux devices
    It operates as a device of the standard CDC-ACM class.
    For Linux distributions with embedded CDC-ACM device drivers, you can use them without installing the drivers.
    We do not support the use of Linux itself.
  • Uses high-retention industrial grade USB connector
  • USB line has ESD protection
  • Includes a USB A-B cable (1.8m)
  • Includes an AC adapter
  • Non-use of 10 Restricted substances of RoHS directive
  • MADE IN JAPAN

Pinouts and Wiring between COMMON and each channel

CONNECTION EXAMPLE

[Switching RS-232C equipment via USB]

[Switching RS-485/422 signal by external switch box]

Specification

Item Description Remarks
Model USB-208  
Input Power 5VDC, less than 150mA
Supplied through a USB port (Bus-powered) or AC adapter
Number of Switching Port 4
Analog Signal Range ±25V
Analog Signal Data Rate max. 20Mbps
LSI MAX14778 analog multiplexer ADI
Common Port D-SUB 9pin Male (#4-40 UNC)  M2.6 screws are also included in the package
Switching Port D-SUB 9pin Male x 4 (#4-40 UNC) 
Control Port USB2.0 B connector
Virtual COM Port (Support Full Speed)
ESD protection ESD11kV
Support OS for controller side Windows 11/10/8.1/8/7 CDC driver
OS of common/switching ports are not limited
External Input Connector D-SUB 9pin Male (#4-40 UNC) M2.6 screws are also included in the package
External Input Specification No-Voltage Dry Contact Input Switch setting: VCC side
Photocoupler Isolated Input
Input: DC5 to 24V
Input impedance: 2.8KΩ
OFF to ON Voltage: more than 4.3V
ON to OFF Voltage: up to 3.6V
Minimum OFF-state Current: 0.9mA
Switch setting: COM side
LED Power LED
Channel LED x 4
Operating Ambient Temperature -20 to 60[°C] (-4 to 140 [°F])  No condensation permitted
Operating Ambient Humidity 10 to 85%RH
Storage Ambient Temperature -20 to 60[°C] (-4 to 140 [°F]) 
Storage Ambient Humidity 10 to 85%RH
Dimensions 165 x 80.5 x 39 [mm]
(6.496" x 3.169" x 1.535")
Without projections
Weight Approx. 350 [g] Only main body

* Power saving function (suspend, standby, sleep and others) is not supported.

Package Contents

  • USB-208
  • USB A-B cable 1.8m
  • AC adapter
  • Screw Lock M2.6 D-sub Connectors (#4-40 UNC Connectors are mounted by default)

Documentation

Price and Optional Accessories

Description MODEL Image List Price (JPY) Stock Status
USB Analog Multiplexer 4:1
USB-208 USB-208
Attachment for vertical direction
ACC-027 ACC-027
Attachment for horizontal direction
ACC-028 ACC-028
Attachment for DIN rail type B
ACC-031 ACC-031
Neodymium magnet set
ACC-036 ACC-036
D-sub 9pin to 6P adapter with FG terminal
ACC-045 ACC-036

Accessories List

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