Installation
Note: In most cases, the U208-004-IND will receive sufficient power from the connected computer
to operate. In the event that additional power is required, connect a user-supplied external power
supply between the external power connection on the unit and an external power source. The
U208-004-IND is compatible with listed LPS 5V DC power supplies using a 5.5 x 2.1 x 9.5 mm
output plug with a positive tip and negative sleeve.
1
Using the included USB cable, connect the USB to Serial adapter to an available USB
port on your computer.
2
Insert the included Driver CD into the computer's CD/DVD drive. If your computer
does not have a CD/DVD drive, you can download the software at
www.tripplite.com/support.
3
In the Driver CD, navigate to the Drivers folder and the driver file applicable to your
operating system.
4
Run the driver file and follow the install prompts to complete installation.
5
Set the DIP switches on the unit to the appropriate serial mode (see DIP Switch
Settings for more information).
6
Connect the serial cable between the serial device and the serial ports on the unit.
Note: The RX status LED will blink green when serial data is being received. The TX status LED
will blink yellow when serial data is being sent.
Specifications
Input Connector
Output Connector
LEDs
Supported Protocols
Max Baud Rate
Max Data Transfer Speeds
Stop Bits
Data Bits
FIFO
Flow Control
Parity
Operating Temperature
Storage Temperature
Relative Humidity
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USB Type-B, Female
U208-001-IND – (x1) DB9, Male
U208-002-IND – (x2) DB9, Male
U208-004-IND – (x4) DB9, Male
Green: Serial Data Received
Yellow: Serial Data Transmitted
RS-422, RS-485
921.6 Kbps
1 Mbps
1, 2
7, 8
U208-001-IND – Tx: 256B Rx: 128B
U208-002-IND – Tx: 4 kB per port Rx: 4 kB per port
U208-004-IND – Tx: 2 kB per port Rx: 2 kB per port
Xon/Xoff
Odd, Even, Mark, Space, No Parity
32 to 104°F (0 to 40°C)
14 to 131°F (-10 to 55°C)
5% to 90% RH, Non-Condensing
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11/10/2017 9:59:35 AM