Brother QL-650TD User Manual page 27

Important
For USB interface, the included USB interface cable should be used to ensure
compliance with the limits for EMC (Electromagnetic compatibility).
For serial interface, a shielded interface cable should be used to ensure compliance with
the limits for EMC.
Changes or modifications not expressly approved by Brother Industries, Ltd. may affect
the performance and print quality, and damage may not be covered under the limited
warranty.
•
Caution for RS-232C connection
The RS-232C serial connector part of this equipment is not Limited Power Source.
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