MAP/950 PRO PCI 4 Port 16950 ISOLATED RS422/485 ( Low or Standard Height )
Do you have a Low Profile or Standard Height PC and need extra RS422/RS485 serial ports with Galvanic Isolation ?
Add 4 more RS422 / RS485 serial ports to your PC in seconds !


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Full Duplex Connector Pinout
Half Duplex Connector Pinout
DB9M_Pin 1 : Ground   DB9M_Pin 1 : Ground
DB9M_Pin 8 : TX-   DB9M_Pin 8 : TX- / RX-
DB9M_Pin 7 : TX+   DB9M_Pin 7 : TX+/ RX+
DB9M_Pin 9 : RX+    
DB9M_Pin 4 : RX-    

High Density 44 Male to 4 of DB9 Male 3' Cable Included

Ordering Information :  IC0545KB

Spare Cable :  Quadplex HD44M to DB9M Cable

Need 2 RS232 Serial Ports for your Standard Height PCI Slot ?
Need 2 RS232 Serial Ports for your Low Profile Height PCI Slot ?
Need 4 RS232 Serial Ports for your Standard Height PCI Slot ?
Need 8 RS232 Serial Ports for your Standard Height PCI Slot ?

Fast speed: Default support upto 460K Galvanic Isolated RS422/485 interface

New State-of-the-art design offers advanced features + Isolation

Toll-Free technical support hotline (US/Canada)

30 Day 100% satisfaction money-back guarantee (Less shipping costs)

Reseller / OEM / volume discounts available


Quad (4) High Speed 16950 PCI Serial Ports

Low Profile Size

Low Profile Bracket Height 79.2 mm (3.118")

Standard Height bracket available for standard height PCI expansion slot

Quadplex Cable Included (HD44M to 4 of DB9M)
16C950 UART
128 Byte Transmit / Receive Buffers

ISOLATED TX+ and TX- lines

ISOLATED RX+ and RX- lines


RS422 / RS485 selectable operation modes

RS422 Mode


RS485 Full / Half Duplex support

25kv ESD Surge Protection


Fail Safe Receiver Biasing

RS485 Auto-gating of the transmitter via hardware

Plug & Play Compatible

Onboard 3KV Isolated DC-DC Convertor

Support for TX and RX line reversals

Slew Rate controlled transceivers for Error-free communications (115k / 500k / 10Mbs)

Short-Circuit / Thermal and current protected transceivers
+5 Volt Only PCI Bus Design

Device Driver support for:

Win 95 / 98

Win ME

Win XP / XP Pro / XP64

Win NT / NT Server

Win 2000 / 2000 Server

Win 2003 (32 / 64 Bit)

Linux (32/64 Bit)

Plug & Play in Linux (Call for RS485 info)

PCI Bus 2.2 Compatible

(For use in 5 volt PCI Slots)

Power Management 1.0 Compliant
Compatible with AMD /Intel CPU Motherboards
Low Noise 4 Layer PCB
IRQ Sharing Capable (All 4 ports use SINGLE Interrupt)
FCC Class B and CE Approved
Designed and Assembled in Canada


$ 399.95 (US$) + S/H

Model #IC0545KB

$10 (US) for UPS Ground (US/Canada)

$20 (US) for Priority Courier Shipping (US/Canada) / International Customers (Contact us)


Call us at 1-800-361-1913 to order yours now!

Product Installation Guide (Revised June, 2007)

Oxford Semiconductor OX16PCI954 UART Datasheet

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