Bull R424-E2, Installation And User Manual, Page: 70 / 182

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ullx R424-E2/R424-INF-E2 and R424-F2/R424-INF-F2 Installation and User's Guide
Serial Ports
A COM Port is located on the IO
Backplane. See the table on the right
for pin defi nitions..
Video Connector
A Video (VGA) connector is located
next to the COM Port on the IO
backplane. This connector is used
to provide video and CRT display.
Refer to the board layout below for
the location.
NC : No Connection
1: COM Port
2: VGA Port
Serial Ports Pin Defi nitions (COM1)
Pin # Defi nition Pin # Defi nition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground NC