Before Starting - Chamberlain 828LM Quick Start Manual

Before Starting

STOP
Look at the label on the bottom of the internet gateway
and record the serial number below.
To prevent possible SERIOUS INJURY or DEATH:
• When the LiftMaster Internet Gateway is used
with a garage door opener, the opener MUST
ONLY be installed with sectional doors.
Before starting
you MUST have:
• a router
• active internet connection
• internet gateway serial
number