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8    VoIP subscriber gateways 
2 DEVICE DESCRIPTION 
2.1 Purpose 
TAU-8.IP  device  is  high-performance  VoIP  consumer  gateway  with  the  full  set  of  options  which  allow 
consumers to use VoIP advantages. 
TAU-8.IP is designed to connection analogue phones and fax-modems to the IP network. 
The device and connection wires for subscriber device connection are specified for unmanned day-and-
night service in the close heated spaces with ambient temperature from +5  to +40 С and relative humidity from 
20%  to  80%.  The  device  does  not  include  of  the  voltage  and  current  built  in  protection  for  subscriber 
terminations.  
220 V External mains adapter provides power supply. 
2.2 Design 
There are two types of the device design distinguishing by set of interfaces and functionality (see Table 1). 
Table 1 – Models 
TAU-8.IP-W devices have a built-in Wi-Fi adapter with capable to connect up to 2 external antennas. Built-
in Wi-Fi adapter supports 802.11n technology, it allows you to provide data transmission service of the wireless 
network with superior QoS in contrast with the device supported 802.11g and 802.11b. In addition, the device 
stays backward compatible with the 802.11g and 802.11b devices. 
2.3 Device characteristics 
The device has the following interfaces: 
  8×RJ-11 ports to connect analogue phones; 
  1 Ethernet RJ-45 10/100BASE-T WAN port; 
  WLAN 802.11n
1
; 
  USB2.0 port to connect bulk memory, USB – modem or printer. 
Gateway is powered by external 12V DC adapter for 220V electrical networks. 
 
 
1
 Only for TAU-8.IP-W