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Quatech

Quatech RS422/RS485 Low Profile PCI

Two & Four Port Universal RS-422/RS-485 PCI Cards

Add RS-422 & RS-485 Serial Ports To Your Desktop Or Industrial PC
 
Quatech Universal PCI (Low Profile) Serial Adapters
  
  • 1 or 2 serial ports
  • Configurable as RS-422 or RS-485
  • Speeds up to 460.8 kbps
  • Auto enable/disable transmitter
  • Full duplex & half duplex
  • Universal PCI connector
  • Compatible with 3.3V and 5V
  • Low Profile Board (fits 2U racks)
  • 16550 UARTs with 16-byte FIFOs
  • Standard DB-9 connectors
  • Win 2000/XP/VISTA support
  • 5 year warranty



Datasheet/Manual:

Quatech RS-232/RS-422/RS-485 PCI datasheet in PDF format Datasheet in PDF format
Quatech SSCLP-200/300 manual in PDF format One Port Manual in PDF format
Quatech DSCLP-200/300 manual in PDF format Two Port Manual in PDF format
 

Introduction

Quatech RS-422/485 UPCI boards completely meet the PCI 2.3 specification for Universal connectivity and Low Profile boards, as well as all other aspects of the specification so that you can be certain that every Quatech Universal PCI board will function properly and perform reliably in your system. Serial port connections are made via an onboard DB-9 female port for single port models, and via the included cables providing two DB-9 female connectors for two port boards.

The new Low Profile PCI footprint was designed to provide greater flexibility for embedded systems, thin-clients, and desktop and server environments. The boards are mechanically similar to standard PCI boards, but use a shorter board and a different mounting bracket. They are designed to fit into systems as low as 3.350" without using riser cards. The boards are built on 32-bit addressing, and can be used in standard PCI backplanes or with specialized Low Profile PCI brackets. Quatech's RS-422/485 boards are built using the smallest (MD1) Low Profile board specification, which allows them to be used in even the smallest size systems without riser cards.

PCI 2.3 requires that all plug-in cards support 3.3V signaling. However, many systems still use 5V signaling. To accommodate both system types, Quatech Low Profile boards also use a Universal PCI connector compatible with both 3.3V and 5V signaling. This means that they can be used with current equipment, and will not need to be replaced as systems are upgraded. It also means that a single serial board solution can be used across a diverse network comprised of many different types of computer.

Each port on the board can be configured as either RS-422 or RS-485 for full or half-duplex communication. It is implemented with an automatic RS-422/485 transmitter enable/disable function that permits the hardware itself to regulate data flow by only driving lines while actively transmitting--providing increased speed and convenience over the older software controlled method.
 
SSCLP-200/300 SSCLP-200/300
Serial UPCI (Low Profile) board
1 port RS-422/485
 
DSCLP-200/300 DSCLP-200/300
Serial UPCI (Low Profile) board
2 port RS-422/485
 
QSCLP-200/300 QSCLP-200/300
Serial UPCI (Low Profile) board
4 port RS-422/485
 
RS-422/485 pinout
 
 

Specification
Bus Interface:

32-bit, 33 MHz PCI Bus specification 2.3 compliant
OS Support:

Windows 95/98/Me/NT/2000/XP/VISTA, OS/2, DOS
Linux (tested on RedHat 7.3, 9.0, should work on other versions)

Data Rate:

460.8 kbps (max)
Serial Ports Provided:

SSCLP:1
DSCLP:2
QSCLP:4
Serial Port Connectors:

SSCLP: 1 DB-9 female
DSCLP: DB-25 female to cable with 2 DB-9 female
QSCLP: DB-25 female to cable with 4 DB-9 female
COM port allocation:

Windows 95/98/Me: For these versions of Windows, Windows will allocate the board a COM port starting at the next free COM port at COM5 or higher - note that this is a 'feature' of Windows 95/98/Me and not a limitation of the Quatech cards. However, it is easy to change the COM port allocation (i.e. to use COM1 -4 or other ones), refer to this document for further details.

Windows 2000/XP: The cards will always takes the next available com port number. Note that if some other installed hardware has been installed and has not removed/uninstalled it but just been unplugged, Windows will reserve that COM port for that device and the Quatech device will take the next free COM port number(s).

UARTs:

16550 UARTs with 16-byte FIFOs (1 per port)
Transceiver:

SP3491 or compatible
Drivers:

Differential Voltage: ±3.3V
Transition Time (TLH): 52ns (typ)
Transition Time (THL): 60ns (typ)
Receive Buffers:

Differential Input Threshold: ±0.2V
Voltage Range: -7V to +12V Common Mode Input
Transition Time (THL-TLH): 65ns (typ)
Environment:

Operating: 0°C to 70°C
Storage: -50°C to 80°C
Humidity: 10% to 90%
Power Requirements:

3.3V, 260mA (typ)
Size:

MD1 Board: 63.55mmH x 119.91mmW (fits 2U racks)
Low Profile PCI Bracket: 79.20mm H (standard PCI bracket also included)
Certifications:

Certifications: CE, FCC Class B
ROHS Status:

This product is lead free/ROHS compliant.

Ordering Details:
Board:

SSCLP-200/300 1 port RS-422/485 Low Profile UPCI board
DSCLP-200/300 2 port RS-422/485 Low Profile UPCI board with cable to 2 x DB9
QSCLP-200/300 4 port RS-422/485 Low Profile UPCI board with cable to 4 x DB9

Note that the product comes with a low profile AND a standard PCI bracket - it will install in most PCs!

Quatech cards come in a retail box with manual/driver CD and cable (where necessary)
Accessories:

IND2 Surge suppression package for 2 ports
IND4 Surge suppression package for 4 ports
CP-QS-D9 Cable providing 4 DB-9 (m) ports for QSC
CP-QS Cable providing 4 DB-25 (m) ports for QSC

Further Information:

Want further information or pricing on this product? Either fill out our feedback form or contact us for further information.
 
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