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Chapter 4: Troubleshooting
Frequently Asked Questions
What do the colors of the Device Status LED indicate?
Red - Hardware is initializing.
Amber - Software is initializing. Hardware is initialized.
Green - Hardware and software are fully initialized and running.
What do the colors of the Ethernet Status LEDs indicate?
Steady Green (left side) - Active Link
Blinking Amber (right side) - Network activity
What do the colors of the T1/E1 Status LEDs indicate?
Steady Green (right side) - Appliance is in-sync with the far end.
Steady Yellow (right side) - Appliance is synchronizing or is receiving a yellow alarm from the far end.
Steady Red (right side) - Appliance is not seeing far end, circuit is not up, or cable is bad.
Singular Blinking Green (right side) - Line has been placed into loopback mode.
Steady Blue (left side) - T1/E1 software driver is initialized, but configuration is invalid.
All Off - T1/E1 software driver is not initialized.
Digium, Inc.
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Chapter 4: Troubleshooting
What type of cable do I need for the T1/E1 ports on a Gateway Series appliance?
A straight-through RJ45 T1/E1 cable is needed for connecting to the RJ45 ports on a Gateway Series appliance when connecting to the PSTN. If connecting to a TDM PBX, a crossover RJ45 T1/E1 cable may be required. The appropriate cables may be ordered from Digium by visiting
www.digium.com. Refer to Table A-2 on page 60 for pin assignments.
There is a slight echo. How can I adjust the sound quality?
First, verify that the Echo Cancellation option under the Port # menu of
T1/E1 Settings is enabled. If it is not, enable it. If echo persists, adjust the
RX Gain and TX Gain options on the same menu. For the gain options, it is recommended to shift only between values of -5 and 5.
Digium, Inc.
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Chapter 4: Troubleshooting
Where can I find answers to additional questions?
Digium Technical Support (+1.256.428.6161), or Toll Free in the U.S.
(+1.877.344.4861), is available 7am-8pm Central Time (GMT -6),
Monday - Friday. Please refer to Free Installation Support on page 58
for additional information on how to obtain assistance from Digium
Technical Support.
Digium, Inc.
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