User guide
Polycom® VVX® 500 and Polycom® VVX® 600 Business Media Phones User Guide 
114 
WARNING Electrical Safety 
To avoid electric shock, do not connect safety extra low voltage (SELV) circuits to teleconference station 
network (TNV) circuits. LAN ports contain SELV circuit, and WAN ports contain TNV circuits. Some LAN 
and WAN ports both use RJ-45 connectors. Use caution when connecting cables. 
This product is rated 48Vdc, 0.375A. When used with the optional external power supply (PSC18U-480, 
or similar rated PSU), the power supply shall be a Listed power supply with a LPS output, rated 48V, min. 
0.38A. 
Russian Compliance 
VVX 500: Ministry of Information Technologies & Communication of the Russian Federation – 
Declaration of Conformity. Д- СПД-5520 valid until 15/11/2014. 
New Zealand Telepermit 
VVX 500: PTC 220/11/098 
VVX 600: PTC 220/12/058 
Special Conditions for this User Guide 
  PTC General Warning 
The grant of a Telepermit for any item of terminal equipment indicates only that Telecom has 
accepted that the item complies with minimum conditions for connection to its network. It 
indicates no endorsement of the product by Telecom, nor does it provide any sort of warranty. 
Above all, it provides no assurance that any item will work correctly in all respects with another 
item of Telepermitted equipment of a different make or model, nor does it imply that any 
product is compatible with all of Telecom’s network services. 
  Echo Cancellation 
Echo cancellers are not normally required in the Telecom PSTN because geographic delays are 
acceptable where CPE return loss is maintained within Telepermit limits. However, those 
private networks making use of Voice over IP technology are required to provide echo 
cancellation for all voice calls. The combined effect of audio / VoIP conversion delay and IP 
routing delay can cause the echo cancellation time of 64 mS or more to be required. 
  Software Versions in the Polycom VVX 500 and Polycom VVX 600 VoIP Desktop Telephones 
When Used on the Telecom Network 
»  The Polycom VVX 500 must be equipped with the software installed during the PTC testing 
(version 6.4.1.0008) for compliance to be guaranteed. 
»  The Polycom VVX 600 must be equipped with the software installed during the PTC testing 
(version 4.1.0.xxxx) for compliance to be guaranteed. 










