AT&T MERLIN LEGEND Release 2.0 System Programming Manual page 12

Do not attach the power supply cord to building surfaces. Do not allow
anything to rest on the power cord. Do not locate this product where the
cord will be abused by persons walking on it.
Slots and openings in the module housings are provided for ventilation.
To protect this equipment from overheating, do not block these
openings.
Never push objects of any kind into this product through module
openings or expansion slots, as they may touch dangerous voltage
points or short out parts, which could result in a risk of fire or electrical
shock. Never spill liquid of any kind on this product.
Unplug the product from the wall outlet before cleaning. Use a damp
cloth for cleaning. Do not use cleaners or aerosol cleaners.
Auxiliary equipment includes answering machines, alerts, modems, and
fax machines. To connect one of these devices, you must first have a
Multi-Function Module (MFM).
WARNING:
For your personal safety, DO NOT install an MFM yourself.
ONLY an authorized technician or dealer representative shall
install, set options, or repair an MFM.
To eliminate the risk of personal injury due to electrical shock,
DO NOT attempt to install or remove an MFM from your MLX
telephone. Opening or removing the module cover of your
telephone may expose you to dangerous voltages.
SAVE THESE INSTRUCTIONS