Quick-Start Guide
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Manual Revision: October 31, 2019
Product Diagram (PEX4S953 and PEX4S953LP)
Port
Function
1
Break-out Cable Port
• Connect the
4-Port DB9 Break-out Cable
to connect
up to 4
Serial Devices
2
Stand-offs
• Attach the
Bracket
to the
PCI Express Serial Card
• Secure the
4-Port DB9 Break-out Cable
to the
Break-out Cable Port
3
Bracket
• Attach the
PCI Express Serial
Card
to the
Computer
4
PCI Express Bus
Connector
• Connect the
PCI Express Serial Card
to the
Computer Motherboard
5
Jumpers
• Configure the individual
Serial Connector
power
settings
6
LP4 Power Connector
• Used to connect an
LP4 Power Source
4-Port PCI Express RS232 Serial Card - 16950 UART
Requirements
For the latest requirements please visit:
- or -
www.startech.com/PEX4S953LP.
• PCIe Slot
• Needle-Nose Pliers
• (Optional) LP4 Power Source
Installation
WARNING!
PCI Express Serial Cards
can be severely damaged by static electricity. Make sure
that you are properly grounded before you open the
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 Configuration
Note:
This
PCI Express Serial Card
is specially designed to allow for power output
from the ninth pin of the
Serial Connector(s)
for
Serial Devices
that support power
over serial.
Jumper
configuration is a requirement when connecting
Serial Devices
that require power through a
Serial Connector
.
The
Jumper
can be moved into one of three different positions in order to set the
power output voltage for the
Serial Connector
. The default setting for the
Jumpers
is
RI
, no power. The
LP4 Power Connector
must be connected after configuring the
Jumper
to
5V
or
12V
of power. To configure the
Jumper
, complete the following:
1. Ensure the
Computer
Power
is
Off.
2. Locate the
Jumper
for
Port One
and
carefully remove the
Jumper
. Lift the
Jumper
straight up and off of the
PCI Express Serial Card
.
Notes:
The
Jumper
is located on the right hand side, labeled as
Port 1
on the
Printed Circuit Board
.
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
Connector Power Setting
. See
Figure 1
to determine where the
Jumper
should be
positioned.
1
4
6
3
5
2
