Important Information
ii
CAUTION
Disconnect power before
servicing.
CAUTION
This device is intended for
indoor operation only.
Telephone jacks Line 1 and
Line 2 must not be
connected to outside
wiring.
CAUTION
To ensure reliable operation and to prevent
overheating, provide adequate ventilation for this
modem and keep it away from heat sources. Do not
locate near heat registers or other heat-producing
equipment. Provide for free air flow around the cable
modem and its power supply.
NORTH AMERICAN CABLE INSTALLER:
This reminder is provided to call your attention to Article 820-40 of the National Electrical Code
(Section 54 of the Canadian Electrical Code, Part 1) which provides guidelines for proper
grounding and, in particular, specifies that the cable ground shall be connected to the grounding
system of the building as close to the point of cable entry as practical.
Euro-DOCSIS compliant (THG520)
This product was designed according to Euro-DOCSIS Specifications but can also receive signals
according to the DOCSIS specifications if the used frequencies are between 112-858 MHz.
PacketCable and DOCSIS compliant (DHG525)
This product was designed according to Data Over Cable Service Interface Specifications and
PacketCable Voice Over IP Cable Telephony Specifications.
It will operate on any DOCSIS-compliant Hybrid Fiber Coax (HFC) cable system and offers DOCSIS
and PacketCable Baseline Privacy to promote secure internet transactions and PC-secure
telephone service.
Operating Information
Operating Temperature:0˚ - 40˚ C (32˚ - 104˚ F)
Storage Temperature:-30˚ to 65˚ C
If you purchased this product at a retail outlet, please read the following:
Product Information