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System components Page 73 of 466
Communication Server 1000E Installation and Commissioning
A third-party data network switch can be used with the system. For more
information, refer to Converging the Data Network with VoIP
(NN43001-260).
BayStack 460 Layer 2 switch
The BayStack 460 Layer 2 switch, shown in Figure 14 on page 73, adds
power in addition to data communications over standard Category 5 LAN
drops for powering the IP Phones. The LAN power system eliminates the
need to connect each telephone to an AC power outlet saving in desktop
wiring and also allowing centralized UPSs for power backups. Using a Power
over LAN unit eliminates the need to use separate power transformers for
each IP Phone.
Figure 14
Power over LAN unit
MRV Terminal Server
The Terminal Server, described in Table 8 on page 74, provides the dedicated
rlogin service used to establish serial connection between a CS 1000E and
various serial devices. The IP-based Terminal Server provides standard serial
ports for applications that use a serial port interface. These applications
include billing systems that analyze Call Detail Recording (CDR) records,
Site Event Buffers (SEB) that track fault conditions, and various legacy
applications such as Property Management System (PMS) interface and
intercept Computer applications. In addition, serial ports are used to connect
maintenance terminals and modems for support staff.