User Manual

Quick-Start Guide
To view manuals, FAQs, videos, drivers, downloads, technical drawings, and more, visit www.startech.com/support.
Manual Revision: December 17, 2019 9:30 AM
Product Diagram (PEX2S953LP)
Port Function
1 Serial Port • Used to connect Serial Devices
2 Screws
• Used to attach the Serial Port to the Bracket
• Used to secure a Serial Cable to the Serial
Port
3 Bracket • Used to attach the Card to the Computer
4
PCI Express Bus
Connector
• Used to connect the PCI Express Serial Card
to the Computer’s Motherboard
5 Jumper • Used to congure Serial Port power settings
6 Printed Circuit Board
• Components such as Jumpers are located on
the Board
2-Port PCI Express Serial Card with 16950 UART - Low-Prole
7 LP4 Power Connector • Used to connect a Power Source
Requirements
• PCIe Slot
• Needle-Nose Pliers
For the latest requirements and full manual, please visit
www.startech.com/PEX2S953LP.
Installation
WARNING!
PCI Express Serial Cards can be severely damaged by static electricity. Make sure
that you are properly grounded before you open your Computer Case or touch the
PCI Express Serial Card. You should wear an Anti-Static Strap when you install any
computer component. If an Anti-Static Strap isn’t available, discharge any built-up
static electricity by touching a large Grounded Metal Surface for several seconds. Only
handle the PCI Express Serial Card by its edges and don’t touch the gold connectors.
Jumper Conguration
Note: Jumper conguration is a requirement when connecting Serial Devices that
require power through a Serial Port.
This Jumper can be moved into one of three dierent positions in order to set the
power output voltage for the Serial Ports. The default setting for the Jumpers is RI,
which is the setting for no power. The Jumper can be moved to one of the other two
settings for 5V or 12V of power. To congure the Jumper, complete the following:
1. Locate the Jumper for Port One. Port One is located on the right hand side, labeled
as COM1 on the Printed Circuit Board. The Jumper is labeled as J1 on the Printed
Circuit Board.
2. Carefully remove the Jumper. Lift the Jumper straight up and o of the PCI Express
Serial Card.
Note: Always hold the Card by the edges.
3. Determine the power setting that is required for Port One.
4. Position the Jumper over the set of Pins that correspond with the desired Serial
Port Power Setting. See Figure 1 to determine where the Jumper should be
positioned.
5. Push the Jumper straight down and into place.
Note: Push the Jumper all the way into position for proper contact.
1 2
1 2
4
3
5
7
6
5