Huawei AGS2-W19 Quick Start Manual page 7

--Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
--Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Caution: Any changes or modifications to this device not expressly
approved by Huawei Technologies Co., Ltd. for compliance could void the
user's authority to operate the equipment.
6