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Chapter 2 • Installing the indoor equipment
1031484-0001 Revision 2
5
Chapter 2
Installing the indoor equipment
System pre-installation
Together, the receive modem, the transmit modem, and the
Gateway are called the DW4020 and sometimes referred to as the
indoor unit (IDU). The receive modem is also called the IRU; the
transmit modem is also called the ITU; and the Gateway is
sometimes called the GWH.
The three units must be stacked correctly to ensure proper heat
dissipation. The receive modem must be installed on top of the
transmit modem, which is in turn installed on top of the Gateway.
See Figure 10 on page 15.
Installation PC requirements
The installer laptop PC must fulfill the following requirements:
• USB port
• Ethernet
• Dial-out modem
• Windows 98 or higher, with DHCP configured to
automatically accept IP addresses. See Appendix D.
• Websetup installed. See Installing DIRECWAY installation
software on installer laptop on page 8.
Customer installation
requirements
The customer must have:
• A functioning Ethernet interface installed on at least one
computer. This is not necessary to commission the DW4020,
but you must ensure the customer can surf before you leave.
• Ethernet cables; as many as there are computers that will
connect to the DW4020.
• An analog phone line.