User`s manual

Extension Modules 75
Specifications
X Compliant with PCI Spec.2.1
X Serial communication controller:
X 16C550A compatible
X System I/O mapping: assigned by PCI BIOS
X Shared IRQ
X Flow control
X RS-485 auto direction
X Port Capability:
X Four channel RS-422/485 port (DIP switch select-for DIP
switch configuration, please refer to the EBC board manual)
X Baud rate: Each port can be configured to 50-115,200 bps
Pin RS-422 RS-485
1RX+ NC
2TX+ NC
3NC NC
4NCDATA+
5GNDGND
6RX- NC
7TX- NC
8NC NC
9NCDATA-
Table 5-13: PMC-3544G