User's Manual

GVR3550/GVR3552 User Manual Page 13 of 125

2) This device must accept any interference received, including interference that may cause undesired

operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential

installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful interference to radio communications. However,

there is no guarantee that interference will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be determined by turning the equipment off

and on, the user is encouraged to try to correct the interference by one or more of the following measures:

—Reorient or relocate the receiving antenna.

—Increase the separation between the equipment and receiver.

—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.

WARRANTY

If the GVR3550/GVR3552 was purchased from a reseller, please contact the company where the device was

purchased for replacement, repair or refund.

If the device was purchased directly from Grandstream, please contact our technical support team for a RMA

(Return Materials Authorization) number before the product is returned.

Grandstream reserves the right to remedy warranty policy without prior notification.

Caution:

Changes or modifications to this product not expressly approved by Grandstream, or operation of this

product in any way other than as detailed by this User Manual, could void your manufacturer warranty.

Warning:

Please do not use a different power adaptor with the GVR3550/GVR3552 as it may cause damage to the

products and void the manufacturer warranty.

This document is subject to change without notice. The latest electronic version of this user manual is

available for download at:

http://www.grandstream.com/products/surveillance/GVR3550/documents/GVR3550_UM_EN.pdf