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SX-200 ICP MX Technician’s Handbook
General Troubleshooting Steps
1. Verify the status of the LEDs (Power, 10/100 Base TX Auto-MDIX,
CIM Expansion Ports, etc.) See “Checking the System LEDs” on
page 241.
2. From the Maintenance Terminal, review the Alarm details. Identify and
fix each alarm.
3. For IP Phone and physical network connectivity problems:
- Verify that the device has power.
- Verify the status of the port link integrity LEDs at each end of the cable.
- Verify that each device transmits a link integrity pulse (LINK LED on).
- Verify that proper cabling is installed between the end devices.
- Verify that a crossover cable was not used to connect the IP Phone
to the Layer 2 Switch instead of a straight-though cable.
If the IP phone still fails, try plugging it into the port of a working IP
Phone (isolates problem directly to phone or programming if phone
fails to boot) or directly into the SX-200 ICP (do this after hours since
all other phones will be out of service.)
Using the Phone Debug Option
To use the debug function on IP Phones that have displays:
1. Press both volume keys, and then release the Volume Down key.
2. While still pressing the Volume Up key, enter cfg (234) on the
telephone key pad.
3. View detail for the following categories:
- Network Parameters (View Current Values, View DHCP Values,
View Static Values, Modify Static Values)
- Hardware Configuration (View Current Port Setting, Modify Port
Setting, Analog Line Config)
- Phone Mode (Protocol, Config Teleworker)
- Tools and Features (Erase PIN, Edit 802.1x Settings, Edit LLDP
Settings, PING Test, DHCP Trace, Video Configuration, Port
Options, Diagnostics, Restore Defaults)
-Version info (Main Load, Boot Load, L2Boot Load)
4. Press Superkey to exit the debug menu.