Lenovo ThinkPad T420i - Manual (Page 11)

Electrical current safety information
DANGER
Electric current from power, telephone, and communication cables is
hazardous.
DANGER
• Connect and disconnect cables as described in the following
procedures when installing, moving, or opening covers on this product
or attached devices.
To connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlets.
5. Turn devices ON.
To disconnect:
1. Turn everything OFF.
2. First, remove power cords from
outlets.
3. Remove signal cables from
connectors.
4. Remove all cables from devices.
The power cord must be disconnected from the wall outlet or receptacle
before installing all other electrical cables connected to the computer.
The power cord may be reconnected to the wall outlet or receptacle only
after all other electrical cables have been connected to the computer.
Modem safety information
CAUTION:
To reduce the risk of fire, use only No. 26 AWG or larger (for example, No. 24
AWG) telecommunication line cord listed by Underwriters Laboratories (UL)
or certified by the Canadian Standards Association (CSA).
Products with television tuner options installed
The notice below applies to products containing television (TV) tuner devices that
connect to external antennas or to cable/CATV systems, or both, and that are
intended to be installed in North America. Users and installers in other countries
should follow local codes and ordinances when installing appliances that connect
to external antennas and cable/CATV systems. If local codes are not applicable, it
is recommended that users/installers follow guidelines similar to those that follow.
Note to CATV system installer
This reminder is provided to call the CATV system installer's attention to Article
820-40 of the National Electrical Code (NEC) that provides guidelines for proper
Safety and Warranty Guide
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