7404e

PCI EXPRESS ASYNCHRONOUS SERIAL CARD

Serial Boards
7404e PCI Express Asynchronous Serial Card
7404e - 4 Port RS-232/422/485 PCI Express Asynchronous Serial Card (COMM+4.PCIe)
CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.
This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.
This product has a lifetime warranty against product failure (excludes user or enviromental damage).
The Federal Communications Commission (FCC) is an independent agency of the United States government that sets standards and governs the testing of conducted and radiated emissions such as EMI.
From
£193

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Version information
Lead time*
1 off price**
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7404e-ROHS
4 Port RS-232/422/485 PCI Express Asynchronous Serial Card
£193
Peripheral information
Lead time*
1 off price**
Request qty / trade pricing**
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DB9 Female (RS-422) to DB25 Male (RS-530) Cable, 10" in Length
£12
DB78 Male to DB78 Female, 72" in Length - Extension Cable
£91
Terminal Block - DB9 Female to 5 Screw Terminals (RS-422/485)
£10
DB9 Female to DB9 Female, 72" in Length - RS-422 207M SMPTE Cable
£23
Terminal Block - DB9 Female to 9 Screw Terminals
£23
Terminal Block Kit - TB06 + (2) CA127 Cables
£50
DB9 Female to Tinned Leads Cable, 72" in Length - for 1104, 1105
£12
2 x Terminal Block - DB9 Female to 5 Screw Terminals (RS-422/485)
£17
All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 7404e to UK Mainland on orders over £150 (exc. VAT and delivery) when purchasing online - excludes Northern Ireland, Isle of Man, Isle of Wight, Scottish Islands and the Channel Islands.

* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)

7404e overview

  • Communication : Asynchronous
  • Interface : RS-232/422/485 Interface
  • Bus : PCI Express
  • Ports : 4
  • UART : 16C954
  • Max. Data Rate : 460.8Kbps
  • Max. Data Distance : up to 4000ft
  • Other Features : Automatic RS-485 enable and disable
  • Connectors : 1 x DB37M to 4 x DB9M
  • Operating Temperature : 0 to +70C
  • Software : SeaCOM software drivers included
  • Warranty : Lifetime Warranty
The 7404e PCI Express serial interface provides four multifunction serial ports, each individually field-configurable for RS-232, RS-422, or RS-485.

Each serial port utilizes a 16C954 UART with 128-byte Tx/Rx FIFOs that enables data rates to 921.6K bps for reliable high-speed communications in data intensive applications.

This high-performance UART includes 9-bit framing support and is register compatible with legacy 16550 software applications. In addition, the board derives a 62.5MHz clock from the PCI Express link. This ultra high speed clock is divided by a flexible 8-bit clock prescalar with 1/8 steps to provide support for the widest range of standard and non-standard baud rates.

In RS-485 mode the board provides automatic control of the RS-485 driver in hardware, eliminating the need for application software control. This allows the 7404e to be used with standard serial communications applications and removes the risk of bus contention and data corruption.

Additionally, RS-485 network termination, critical to robust multi-drop communication, can be selectively added to the circuit via DIP-switches. In RS-232 mode, all modem control signals are implemented for maximum compatibility with a variety of serial peripherals.

Sealevel SeaCOM software driver and utilities make installation and operation easy using Microsoft Windows and Linux operating systems.

The 7404e is a PCI Express X1 board compatible with any PCI Express slot. The board ships with a 36 inch cable (CA143) that terminates to four DB9M connectors.
 
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