Specifications

2-12 Chapter 2: 7401-4xxx Product Overview
Port2shareshardwareresourceswiththeIRDAconnection;ifIRDAis
inuse,Port3isnotavailable.
RS-232 DB-9 Male Connector Pinout
Pin Port A Port B
1 DCD DCD
2 RXD RXD 
3 TXD TXD 
4 DTR DTR 
5 GND GND 
6 DSR DSR 
7 RTS RTS 
8 CTS CTS 
9 RIor+12* RI 
*IfPort1or3arepowered,pin9willbe+12V.
Hardware Monitor
Thehardwaremonitorgeneratesaninterrupttothesystemwhenever
anyoftheinternalvoltagesusedbythesystemprocessorgoesaboveor
belowtheacceptableoperatingrange.Aninterruptisalsogenerated
whenthetemperatureoftheProcessorexceedssafelevels.Software
canusethisindicationtosloworstop
thesystemand/orforceareset.
PCI Expansion Header
Asingleexpansionheaderisprovidedtosupportoptionalfeatures,
suchasthePCMCIAforWirelessLANBoard.Thisboardsupportstwo 
Type2oroneType3PCMCIAtypecards.
IDE Header
AstandardIDEheaderisprovidedtosupporta2.5‐inchharddisk
driveandanintegratedCD‐ROM.Thisheaderalsupportstheoptional
256MBIDEcompactflashavailableinplaceoftheharddisk.