Chapter 2 • Installing the indoor equipment
1031484-0001 Revision 2
19
TX
LED. The LEDs’ status indicate various conditions. Table 5
describes the basic states.
The LEDs may also indicate various conditions through
blink
patterns.
The numbers in brackets are the status codes discussed
in
The System Status indicator
on page 36.
If the modem does not appear to be functioning, check all cable
connections. If they are secure, cycle the power by unplugging
the power cord at the power supply and plugging it back in. A
number of conditions and corrective actions are described in
Chapter 4 –
DW4020 LEDs and troubleshooting,
on page 53.
The
R
EADY
LEDs should come on steady when the DW4020 is
powered up, commissioned, and when it is operating. The
TX
and
RX
lights can also blink when the DW4020 is first powered up, or
when the DW4020 is power cycled. However, that blinking does
not indicate anything about their status.
The DW4020 is extremely reliable. If you find you cannot surf
the Internet or the DW4020 seems to have a problem, follow this
sequence of steps below to identify and fix the problem.
•
Check whether the DW4020 LEDs are on or off.
The LEDs
may indicate that a connection has become loose.
Reconnecting a cable or power cord may restore function.
•
Check if the LEDs are blinking in a pattern.
The LEDs can
blink in a pattern. The patterns correspond to the receive and
transmit status codes discussed in
Transmit Status messages
on page 37 and
Receive Status messages
on page 42. See
LED blinking indicating status codes
on page 60 for a
discussion of the blinking LEDs.
•
Check if the LEDs on the back of the Gateway or on or off.
The LAN ports on the back of the Gateway have LEDs. See
Ethernet port LEDs
on page 20.
•
Contact technical support.
If the corrective actions described
in this chapter and
Chapter 3 – The User Interface
do not
solve the problem, contact technical support.
Table 5: Basic Receive and Transmit Modem LED States
Ready OFF/RX OFF
Ready ON/RX Off
Ready ON/RX
blinking
Receive modem
Modem not functioning
Modem functioning, no
data being received
Modem functioning,
data being received
Ready OFF/TX OFF
Ready ON/TX Off
Ready ON/TX blinking
Transmit modem
Modem not functioning
Modem functioning, no
data being transmitted
Modem functioning,
data being transmitted
Summary of Contents for DW4020
Page 5: ... iv 1031484 0001 Revision 3 ...
Page 11: ... Important safety information x 1031484 0001 Revision 2 ...
Page 45: ...Chapter 2 Installing the indoor equipment 32 1031484 0001 Revision 2 ...
Page 63: ...Chapter 3 The User Interface 50 1031484 0001 Revision 2 Figure 41 Firewall Settings ...
Page 79: ... Glossary 66 1031484 0001 Revision 2 ...
Page 81: ... Abbreviations and Acronyms 68 1031484 0001 Revision 2 ...
Page 133: ...Appendix D Configuring the installer laptop for IP addressing 120 1031484 0001 Revision 2 a ...
Page 135: ...Appendix E Installation checklist 122 1031484 0001 Revision 2 ...