MCK pbxgateway Administrator's Manual page 187

Troubleshooting
EXTender 4000
Once the EXTender 4000 is properly connected it will begin a series of
self-diagnostic tests which are displayed as a series of LED flashes. The
"Status" LED will blink for several seconds as the module is initializing.
Once the power-up sequence has finished, (see page 6-7) the state of the
LEDs should be:
Label Description
Status Blinking while module is initializing..
Off when not powered.
After unit is powered:
On Solid Green when enabled but not extended.
Slow Green Flash when extended and on-hook.
Fast Green Flash when extended and off hook.
Green Flicker when there is no connection to a
telephone.
CLN Blinking when an ethernet collision condition exists.
PC Off if nothing plugged in or connection is bad.
On solid when a good connection is established.
Blinks when traffic is sent.
LAN Off if nothing plugged in or connection is bad.
On solid when a good connection is established.
Blinks when traffic is sent.
EXT
Normally off, blinks when the EXTender 4000 sends
ethernet traffic.
Table 6-9. EXTender 4000 LED States
Figure 6.3. Front Panel
Issue 2.1 December 1999
6-16