Contents
Overview ....................................................................................................................................................... 3
Features .................................................................................................................................................... 3
Specifications ............................................................................................................................................ 3
PCI Express .................................................................................................................................................... 3
Y-Cables ......................................................................................................................................................... 4
Signal Specifications ...................................................................................................................................... 5
Single Ended Signals (RS-232/V.28) .......................................................................................................... 5
Differential Signals (RS-422/RS-485/V.11) ................................................................................................ 5
Clock Polarity ............................................................................................................................................ 6
Serial Interface Selection .............................................................................................................................. 7
Differential Input Termination ...................................................................................................................... 8
2 Wire Mode Jumpers ................................................................................................................................... 9
Serial Connector Pin Assignments .............................................................................................................. 10
RS-232 ..................................................................................................................................................... 11
V.35 ......................................................................................................................................................... 12
RS-422/RS-449/RS-485/RS-530 ............................................................................................................... 13
X.21 ......................................................................................................................................................... 15
General Purpose I/O Signals ....................................................................................................................... 16
DC GPIO Specifications ............................................................................................................................ 16
Frequency Synthesizer ................................................................................................................................ 18