User guide

Rev 1.0D Jul.09 10
Connecting to a Computer or other
Device
Figure 0-12: Ethernet
TheEthernetportofyourRavenXEcanbeconnecteddirectly
toacomputerorotherEthernetdevicewitheitheracross‐over
cableorastraight‐throughcable.TheEthernetportonthe
RavenXEisauto‐sensingandconnectsat10baseT.Ifyouare
connectingthemodemtoa
huborswitchyoushouldusea
straightthroughcableorusetheuplinkportonthehubor
switchwithacross‐overcable.
Tip: On some computers, the TCP receive window may be set to 16
kbytes. To optimize the throughput of your Raven XE, it is recom
-
mended that you change the TCP window to 128 kbytes to 256 kbytes
using a TCP Optimizer.
Figure 0-13: USB
YourRavenXE’sfull‐speed(12Mbit)USB2.0portcanbe
connecteddirectlytomostcomputersorotherdevicesusinga
standardfull‐speedUSB2.0cable.Ifthecomputerordevice
youareconnectingorthecableisnotratedforfull‐speed,the
modemwillcommunicateata
reducedspeedtomatch.The
RavenXEfunctionsasadevice,notahost.
Whenitisconnectedtoacomputer,theUSBportshouldbe
seenasaCOMportorEthernetportaftertheapplicabledriver
isinstalled.
TheRavenXEhasastandardmini‐Bconnector.