B&B Electronics QSPXP-100 - Manual - Manual (Page 33)

B&B Electronics ExpressCard Serial Adapter User’s Manual Appendix
Rev 1.00 (July 2007) Page 29
Appendix A
Specifications
Bus interface PCI Express, revision 1.1
Baud rates Up to 921,600 bps.
Factors impacting performance include:
 Hardware flow control
 Horsepower of the host computer
 Quality of and length of cables
 Continuous or “bursty” data
Ports SSPXP-100: 1
DSPXP-100: 2
QSPXP-100: 4
SSPXP-200/300: 1
DSPXP-200/300: 2
QSPXP-200/300: 4
UARTs Custom high-speed UARTs with 1024-byte FIFOs
for both transmit and receive.
Automatic hardware and software flow control.
Transceivers:
SSPXP-100
DSPXP-100
QSPXP-100 RS-232 Output
Voltage Swing: +/–5V min, +/–5.4V typical
RS-232 Input
Voltage Range: –15V min, +15V max
Input Threshold Low: 0.6V max, 1.0V typical
Input Threshold High: 2.4V min, 1.5V typical
Transceivers:
SSPXP-200/300
DSPXP-200/300
QSPXP-200/300
RS-422/485:
Differential Driver Output (50Ω Load): +2V min
+3.3V max
Differential Driver Output (27Ω Load): +1.5V min
+3.3V max
High Input: +2V min
Low Input: +0.8V max
Driver Rise or Fall Time:
5 ns typ, 20.5 ns max
Driver Input to Output Delay:
20 ns min, 40 ns typ, 60ns max
Receiver Input to Output Delay:
40 ns min, 70 ns typ, 100 ns max