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Pegasus Fast Start Guide 7460572 Rev A Page 4 of 12
MAINPOWERINPUTCONNECTOR(PWR1)
Inputpowermaybesuppliedeitherthroughthisconnector,theI/Opowerconnector,ordirectly
throughthePC/104buspowerpins.
Ground 1 2 +5VDC
Ground 3 4 +12VDC
Ground 5 6‐12VDC
Key 7 8 +5VDC
Ground 9 10 +5VDC
Pegasusrequiresonly+5VDCinputpowertooperate.HoweversincethePC/104busincludespinsfor
+3.3Vand±12V,thesevoltagesmaybesuppliedthroughthisconnectorifdesired.Alsoifa3.3VLCDis
used, then 3.3V must be supplied through this power connector.Multiple +5V and ground pins are
providedforextracurrentcarryingcapacityifneeded.Eachpinisratedat3Amax.Forapplications
requiring less than 3A, the first 4 pins may be connected to a standard 4‐pin miniature PC power
connector,orthealternatepowerI/Oconnectormaybeused.
I/OPOWERCONNECTOR(IO_P1)
Thisconnectorprovidesanalternateconnectorforeitherinputpowertothesystemoroutputpower
forusewithexternaldrives.
1
+5VI/O
2
Ground
3
Ground
4
+12VI/O
DiamondSystems’ cablenumber 6981006 mateswith thisconnector.It providesa standardfull‐size
power connector for a harddrive or CD‐ROM drive and a standard miniature power connector for a
floppydrive.
EXTERNALBATTERYCONNECTOR(EBAT1)
Thisconnectorprovidesameanstoconnectanexternalbatteryto
thePegasusSBC.
1
Ground
2
+3.3VDC
ETHERNETCONNECTOR(LAN1)
PegasussupportsbothapinheaderandanoptionalRJ‐45 jackforEthernetsignals.Thepinheaderpin
outisshownhere.TheRJ‐45pinoutmatchesindustry standards.TheLEDsignalsarereferencedto
ground.
TX+ 1 2 TX‐
NC 3 4 RX‐
RX+ 5 6 LinkLED‐
LinkLED+ 7 8 ActLED+
Key 9 10 ActLED‐