Chapter 3: Turn-Up and Troubleshooting
AT-iMG2400 Series Installation Guide
29
Troubleshooting
Problem:
Gateway is not operating correctly.
Solution:
Reset the unit by disconnecting and then reconnecting the power cable.
Problem:
The PWR LED is off.
Solution:
Check the power cable to verify that it is not damaged and that it is connected correctly.
Problem:
The SYST LED is on and is red.
Solution:
Unplug the power cable and plug it in again after 20 seconds. If the LED does not turn off, unplug
the power cable and contact Allied Telesis.
Problem:
The WAN LED is off.
Solution:
Check the following:
Verify that the fiber optic port and fiber connector on the pigtail from the splice tray are
clean.
Verify that the connector is properly seated in the fiber optic port.
Verify that the fiber optic cable has an active light source.
Problem:
The VOIP LED remains off when you lift up the receiver on the connected telephone.
Solution 1
: Verify that the telephone cable is correctly connected, that the correct cable is being used, and
that the cable is not damaged.
Solution 2
: Unplug the RJ-11 pigtail for the telephone circuit in question. Plug a POTS telephone into the RJ-
11 jack. If the VOIP LED lights up when you lift the receiver, then there may be a problem with the telephone
cable. If the VOIP LED does not light up, then there may be a problem with the iMG. Contact Allied Telesis.
WAN
ON - A WAN link has been established
OFF -A WAN link has not been established
VoIP
ON - One or all of the VoIP lines are off-hook
OFF - The endpoint is not registered
Blinking -The VoIP network is available.
RJ-45 LED
(LAN)
Right
: - Link Speed
Green – 1 Gig link
Orange – 100 Meg link
None – 10 Meg link or no link
Left
: - Link/Activity
On - Link established:
Blinking – Traffic
If LED is off and traffic is not 10 Meg, ensure the
connected devices are powered on, have no problems
with their network interface cards, and have LAN
cables attached to the correct port.
Table 2: LEDs (Continued)
LED
Meaning
