Appendix B
The Internet and the DW4020 . . . . . . . . . . . . . . . . . . . .71
Internet protocol (IP) and transmission control protocol (TCP) 71 Turbo Intranet™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 IP addressing and the DW4020 . . . . . . . . . . . . . . . . . . . . . . .72 Private IP addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74 Types of hosts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74 Private address space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74 Private IP addressing and DW4020 customers . . . . . . . . . . .75
DW4020s provide connections . . . . . . . . . . . . . . . . . . . . . . . . .76 Subnet mask. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Appendix C
Installing the DW4020 Manually . . . . . . . . . . . . . . . . . .77
Items needed for installation . . . . . . . . . . . . . . . . . . . . . . . . . . .77 The power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 Assembling the components. . . . . . . . . . . . . . . . . . . . . . . . . .79 Powering up and reading the DW4020 LED display . . . . . . .85 The DW4020 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 DW4020 LEDs status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87 Normal operation, no transmit or receive. . . . . . . . . . . . . . . .87 Normal operation, data being sent and received . . . . . . . . . .88 Problem: receive modem READY LED not on . . . . . . . . . . .88 Transmit modem READY LED not lit. . . . . . . . . . . . . . . . . .90 Gateway LEDs not lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91 Gateway LEDs flash, receive modem READY LED off or flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92 LED blinking indicating status codes. . . . . . . . . . . . . . . . . . .92 Ethernet port LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 Communicating with the Gateway through the serial port. . . . .95 Connecting the Gateway and laptop. . . . . . . . . . . . . . . . . . . .95 Configuring Hyperterminal or terminal emulation program .95 Configuring Boot Parameters . . . . . . . . . . . . . . . . . . . . . . . .101 The Installation Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Antenna Pointing - Receiver. . . . . . . . . . . . . . . . . . . . . . .104 Antenna Pointing - Transmitter, Manual . . . . . . . . . . . . .106 Antenna Pointing - Transmitter, Automatic . . . . . . . . . . .106 Range value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107 Verifying software download . . . . . . . . . . . . . . . . . . . . . . . . . .108 DW4020 status information via the serial port . . . . . . . . . . . .110 Verifying correct DW4020 operation. . . . . . . . . . . . . . . . . . . .110 Displaying traffic statistics . . . . . . . . . . . . . . . . . . . . . . . . . .111 Displaying PEP statistics . . . . . . . . . . . . . . . . . . . . . . . . . . .111 The Final Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
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