Avaya R300 用户手册

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DEFINITY Enterprise Communication Server Release 9
Getting Started with the Avaya R300 Remote Office Communicator  
Issue 1
November 2000
Avaya R300 Specifications and Network Design 
15
Setting up the Avaya R300 
2
The number of TN2302AP IP Media Processors required is based on the volume of traffic 
offered by the active calls on an Avaya R300. The assumption is that one third of the 
traffic is carried over the link between the Avaya R300 and the DEFINITY switch, but the 
traffic is also based on the percent of calls shuffling. For more information about 
shuffling, see 
Number of terminals and trunks supported by the 
Avaya R300
An individual Avaya R300 supports 26 stations (24 DCP and 2 Analog). For countries 
which use 600 ohm impedances, the Avaya R300 also supports two 600 ohm loop-start 
CO analog trunks. These two analog trunks support the feature of Emergency Transfer. 
This feature enables a relay contact set to directly cut-through the tip and ring of the two 
600 ohm analog station ports and to connect them to the two-wire analog trunk interface. 
These two analog stations are operating in a loop-start trunk mode (for example, go 
off-hook to seize an out-going CO trunk connection). Note that the DCP stations are not 
operable in power failure mode. For this feature, the Emergency Transfer relay(s) are 
operated either by a loss of power on the Avaya R300 Combo blade or by loss of 
registration with the main switch, indicating loss of connectivity back to a main 
DEFINITY site. This connectivity loss (could be the main ECS, WAN, LAN) will initiate 
an emergency transfer within 60 seconds.
The following are the maximum number of DS0 trunks available:
24 DS0 trunks available per T1 interface with robbed bit signaling (the Avaya 
R300 supports a two-T1 model) or 23 with IDSN PRI T1.
30 DS0 trunks per E1 trunk (the Avaya R300 supports a two-E1 model)
2 DS0 trunks in another product model available per BRI trunk (the Avaya R300 
supports a six-BRI model).
Maximum Number of Locations 
Supported
44
44
44
1
TN799C C-LAN: supports up to 442 
sockets and is an engineered value 
(The number of C-LANS supported 
for all platforms will increase to an 
unspecified quantity.)
10
3
2
1
TN2302 Media Processor: supports up 
to 64 simultaneous voice calls and is 
an engineered value
25
5
4
1
Table 2.
Number of ports and Avaya R300 units  — Continued
Description of Items
G3r
G3si
G3csi
DEFINITY
One/IP 600
Continued on next page