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Sierra Wireless EV-DO Network Router User Manual

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Hardware Installation of the PinPoint-E

Rev 3.0B Feb.08 35

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 PinPoint-E, it is recom

-

mended that you change the TCP window to 128 kbytes to 256 kbytes

using a TCP Optimizer.

Figure 4-4: Serial

Theserialportcanbeconnecteddirectlytomostcomputersor

otherdevicesusingastandardstraightthroughcable.Ifyou

haveaDCEdevice,youwillneedanullmodemornull

modemcable.

AlllocalGPS(UDPencapsulated)reportswillcomeoverthe

Ethernetconnection.RawGPSdatacanalsobetransmitted

acrosstheserialportforapplicationswhichrequireCOM

traffic.Theserialportcannotbeusedtoreceivedatafromthe

Internet.YoucansenddataouttotheInternetfromthe

serial

port,butnodatawillberoutedfromtheInternettotheserial

port.

Indicator Lights

WhenyourPinPoint‐Eisconnectedtopowerandanantenna,

thereisaspecificpatterntothelightstoindicateitsoperation

mode.

Figure 4-5: PinPoint-E Indicator lights

• Chan(channel)‐Indicatesthemodemhasacquireda

networkchannel.

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