Datatek DT-4180 - Manual (Page 100)

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04/09/09
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16.2 4000XA/4180 TSR support for IP-FANOUT
The 4000XA/4180 provides many opportunities to optimize the network FANOUT in an
economical fashion.
One example is the use of the TSR connections to provide connectivity to the individual
remote offices. In conjunction with the serial ports, up to 40 offices (48 using E1) may be
connected from a single 4000XA/4180. A depiction is as follows:
Equipment
Equipment
Each Remote Office
4000
Sync/Async
IP
10/100 BaseT
HUB
TDM
6061
Data Center
M
O
D
E
M
M
O
D
E
M
With
IP-FANOUT
Application
M
O
D
E
M
HUB
4180 4180
4180 4180
T1
Another possibility is the elimination of the modem interface at the remote office. This is
done by using a TSR connection for the remote office as well. The connection may
aggregate multiple timeslots up to the full line rate if the remote office traffic demands it.
This is depicted in the following diagram.