User guide

5
A wired Ethernet LAN with more than four computers requires one or more hubs,
switches, or routers. You can:
• Connect a hub or switch to any Ethernet port on the CH6640E/CG6640E.
• Use Ethernet hubs, switches, or routers to connect up to any combination of 253
computers and wireless clients to the CH6640E/CG6640E.
More detailed information on Ethernet cabling is beyond the scope of this document.
Front Panel
The CH6640E/CG6640E front panel contains indicator lights and the WPS button which
is used to configure Wi-Fi Protected Security (WPS) on compatible clients connected to
the CH6640E/CG6640E network.
The CH6640E front panel LED indicators provide the following status information for
power, communications, and errors:
LED Flashing On
1 POWER
Not applicable — LED does not
flash
Green: Power is properly connected
2 RECEIVE
Scanning for a downstream
channel connection
Green: Downstream channel is
connected
Blue: Downstream channel is
connected with bonded channels
3 SEND
Scanning for an upstream channel
connection
Green: Upstream channel is
connected
Blue: Upstream channel is
connected with bonded channels
4 ONLINE
Scanning for Internet connection;
transmitting or receiving data over
the Internet
Green: Connected to Internet