QSC-100 ***DISCONTINUED PRODUCT*** ONLY 4 LEFT IN STOCK AS OF AUGUST 2021-PLEASE CALL US IF INTERESTED
Four Port RS-232 Serial PCI Board	BUY US Prices CDN Prices Privacy and Security

Description  Specifications  Ordering Information  Technical Support  Download PDF

 Description

Quatech's QSC-100 four-port RS-232 serial board leverages the Plug & Play capability defined in the PCI 2.1 bus specification. The board requires only one PCI slot within the personal computer to provide four independent serial channels. All four channels are addressed in a continuous 32 byte I/O block for simplified software access. And, all channels may also share one PCI interrupt. An interrupt status register is available for determining the interrupt source. All PCI registers are properly implemented, and users can be assured that the QSC-100 will be a good citizen on the PCI bus.

The QSC-100 is implemented with four 16750 UARTs containing 64-byte FIFOs. It has a clock multiplying feature allowing the board to achieve data rates as high as 921.6 kbps. The high clock speeds and deep FIFOs will greatly reduce CPU overhead, making the QSC-100 an ideal choice for heavy multi-tasking environments.

To maintain maximum signal integrity, Quatech's QSC-100 uses a four-layer board design. For even more protection in industrial environments, an optional surge suppression package is available. This "IND" option applies a surge suppressor to each line that is capable of sustaining up to 40A 20ms peak transient surges, a clamping voltage of 30V and a peak energy dissipation of 0.1 Joules. (Note that implementing the IND option restricts the board's speed to 115.2 kbps.)

External connections are provided via one D-37 connector. A cable is provided to convert the D-37 into four standard D-25 male connectors. Windows 95/98/NT, Windows 2000 and OS/2 are supported.

 Specifications

BUS INTERFACE: PCI

DATA RATE:

921.6 kbps up to 430pF load
460.8 kbps up to 900pF load
230.4 kbps up to 1800pF load
115.2 kbps up to 4300pF load (IND option max. speed)

PORTS: 4

UARTs:

4 16750 UARTs with 64-byte FIFOs

Transmit Drivers: SN75150 or compatible

High Level Output: 5V min, 8V typical
Low Level Output: -5V max, -8V typical
Switching Speed(low to high): 1.4 µs with 2500 pF load 40 ns with 15 pF load
Switching Speed (high to low): 1.5 µs with 2500 pF load 20 ns with 15 pF load

Receive Buffers: MC1489 or compatible

High Level Output: 3V to 13V
Low Level Output: -3V to -13V
Switching Speed: 120 µs typical, 175 ns max

Power Requirements: 5 volts: 260mA(typ), ±12V: 35mA (typ)
Temperature: Operating 0 to 70°C, Storage -50 to 80°C
Humidity: 10% to 90%

CONNECTOR:

Pinout:

SIGNAL	PORT 1	PORT 2	PORT 3	PORT 4
DCD	PIN 2	PIN 25	PIN 11	PIN 34
GROUND	PIN 3	PIN 26	PIN 12	PIN 35
CTS	PIN 4	PIN 27	PIN 13	PIN 36
RxD	PIN 5	PIN 28	PIN 14	PIN 37
RI	PIN 20	PIN 6	PIN 29	PIN 15
DTR	PIN 21	PIN 7	PIN 30	PIN 16
DSR	PIN 22	PIN 8	PIN 31	PIN 17
RTS	PIN 23	PIN 9	PIN 32	PIN 18
TxD	PIN 24	PIN 10	PIN 33	PIN 19

 

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(37 Pin female on the board and 25 pin male on the 4 port cable.

Cable has male 37Pin one end, and 25 Pin male on the other end (x4)
Board has 37 D shell female socket.)

 

QSC-100-D9 is no longer available. (Sept. 2014)
 

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OS SUPPORT:  Windows 95/98/NT/2000 and OS/2.

CONFIGURATION: Windows does not assign COM1-COM4 to ports addressed at nonstandard locations. The QSC-100 will install in the lowest available address block over COM4. For example, COM 5-8, COM 6-9, etc.

INCLUDED ACCESSORIES: CP-QS cable.

Technical Support

If the following files do not provide the help you need, Quatech's Technical Support team can be reached at  330.434.3154  Weekdays 8AM to 6PM EST, or by e-mailing Support at Interworld