Cisco Systems WRP400 Manual Do Utilizador

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Introducing Cisco Small Business Analog Telephone Adapters
ATA Connectivity Requirements
ATA Administration Guide
24
1
 
SPA8000 Connectivity
As shown in the following illustration, the SPA8000 consists of eight voice ports 
(voice lines 1-8).
By default, the device on the AUX port is assigned the network address 
192.168.0.0 with a subnet mask of 255.255.255.0. If there is a network address 
conflict with a device on the Ethernet port, the network address of the device on 
the AUX port is automatically changed to 192.168.1.0. 
In the illustration, one fax machine is connected to each pair of ports to illustrate 
that only one T.38 connection is supported by each of the four pairs of RJ-11 ports. 
Up to four fax machines can be connected to the SPA8000 router, but they must be 
distributed as shown. 
Line 1
Line 2
Internet
IP Router (with 
hairpinning) or 
Broadband modem
ITSP
ISP
SPA8000
Line 4
Line 3
Line 6
Line 5
Line 8
Line 7
NAT/PAT
Internal DHCP 
server
LAN
WAN
Ethernet 
port
AUX 
port
Administrative
IVR (Line 1 or 
Line 2)
IP
IP
8 FXS (RJ-11/RJ-21 ) ports
Administration
PC
187256