58
Troubleshooting
LED blinking
indicating status
codes
The DW4020 modems’ READY LEDs can blink in various patterns. These
patterns correlate to the status codes discussed in
Transmit Status messages
on
page 11 and
Receive Status messages
on page 15. If you can see the patterns,
you also have access to the
User Interface
. It will be easier to find out what the
status of the DW4020 is via the interface than the LED status blinking. The
blink patterns are described below for your information.
Transmit
READY LED
Pattern
Corresponding transmit status messages
Off
4
(or powered off)
On
8
2 Long,
1 Short
1
2 Long,
2 Short
2
2 Long,
3 Short
11
1 Long,
1 Short
3
1 Short
5
2 Short
10
,
13
,
14
,
15,16
,
21
,
22
,
23
3 Short
6
,
7
4 Short
12
,
17
Slow
Alternating
9
,
18,19,20
Fast
Alternating
The ITU interface testing – This is a continuous fast blinking pattern, with the Transmit LED being the
inverse of the Ready LED. No corresponding message.
Receive
READY LED
Pattern
Corresponding receive status message
Fast
Alternating
Prior to downloading software– This is a continuous fast-blinking pattern, with the RX LED being the inverse
of the Ready LED. No corresponding message.
Slow
Alternating
1
On
5
1 Long,
1 Short
3,6
1 Long,
2 Short
4,7
1 Short
0
1 Long,
1 Short,
1 Long
2
Table 9: Receive modem READY LED blink patterns
Summary of Contents for DirecWay DW4020
Page 4: ... iv 1032564 0001 Revision A ...
Page 26: ...xxvi ...
Page 30: ... Contents xxx 1032564 0001 Revision A ...
Page 74: ...44 Configuring network settings and e mail ...
Page 98: ...68 Assembling the DW4020 ...