StarTech.com 2S232422485-PC-CARD Quick Start Manual

PCIe x1 RS232/422/485 Serial Card - Low-Profile Brackets Included
Product ID
2S232422485-PC-CARD
PS74ADF-SERIAL-CARD
1
2
3
2
3
5
Port/LED/
Connector
• Secures the card to the Host Computer Case
1
Bracket • The Full Profile Bracket comes pre-installed
• The Low Profile Bracket is included
• Data Receive LED: Flash Green to show activity
2
Activity LEDs
• Data Transmit LED: Flash Yellow to show activity
3
DB9 Serial Ports • Connect Serial Peripheral Devices
• Change the DB9 Serial Ports between RS-232, RS-422,
Serial Mode
4
or RS-485
Switch
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4 5
*2S232422485-PC-CARD shown above
4
6
Function
J1/J2/J3/J4
5
Jumper
PCIe x1
6
Connector
SATA Power
7
Connector
7
Package Contents
2S232422485-PC-CARD:
• Serial Card x 1
• Low-Profile Bracket x 2
• Ribbon Cable x 1
• Quick-Start Guide x 1
Requirements
For the latest requirements, please visit:
• Computer with an available PCI Express Slot (x1, x4, x8, or x16)
Installation
DIP Switch Settings
To change the DB9 Serial Ports between RS-232, RS-422, and RS-485, use the
respective Serial Mode Switch located on the Serial Card. Dip Switch 3 enables/
disables a 120 Ω Termination Resistor, used for impedance matching between the
Tx+/Tx- and Rx+/Rx- (RS-422/RS-485 4-wire) and D+/D- (RS-485 2-wire) lines. The
purpose is to prevent reflections on the line that may cause signal errors.
RS-232
• Optional: Used to change the Voltage Output of DB9
Pin 9
• RI disables power on DB9 Pin 9. This is the default
setting.
• 12V draws power from the SATA Power Connector
(Outputs 12V)
• 5V draws power from the SATA Power Connector
(Outputs 5V)
• Insert into a PCI Express Slot on the Host Computer
• Optional: Connect an available SATA Power Connector
from the Host Power Supply to provide power over
DB9 Pin 9
PS74ADF-SERIAL-CARD:
• Serial Card x 1
• Low-Profile Bracket x 4
• Ribbon Cable x 3
• Quick-Start Guide x 1
www.StarTech.com/2S232422485-PC-CARD
RS-485 (Half-Duplex)
Quick-Start Guide
RS-422/485 (Full-Duplex)
Manual Revision: September 29, 2023