Vocality V100 Technical Manual page 9

C H A P T E R 1 I N T R O D U C I N G T H E V 1 0 0
Two option card bays (one in the Compact Multiplexer) offer a wide range of hardware configurations to
suit the application. The cards are easy to install from the rear panel and provide analogue voice/fax
channels, additional data ports, ISDN BRI extension, high quality audio compression and E1/T1
compressed voice facilities. In addition to this, a Special Option Card bay allows the user to install an ISDN
basic rate terminal adapter, an E1 link card or a TDM interface card and finally, a 10/100base-T port on
the front panel (RevD units) provides connectivity for a Local Area Network (LAN) and integrates an IP
routing and/or bridging function inside the mux.
The product offers point-to-multipoint link connectivity. This allows star or mesh network topologies to be
designed with fully dynamic call routing and no need to decompress at the hub. Any or all data ports
(including ISDN option card, E1 option card and TDM option card) may be used as aggregates, since the
internal architecture will treat all ports in the same way. The flexibility of network topology means that
remote sites with few channels may interoperate with complex central sites with complete compatibility.
The LAN port may also be used to provide aggregate links across IP networks.
Despite the high level of integration, many networks will require more channels than can be supported in
a single 1U chassis. This may readily be achieved using the High-Speed Channel (HSC), a 4Mbps serial
bus for concatenating units together. If more than two units are required to be connected at the hub, this
can be achieved by using back-to-back cables or by configuring IP Aggregates. This bus may be used to
route traffic between any two units in the stack, thereby expanding the number of available channels.
Chassis linked together in this way may thus operate as one cohesive unit and subject to bandwidth
restriction, aggregates or tributaries may be assigned wherever they are required. This feature allows the
network manager to solve complex topologies using the V100 chassis as redeployable building blocks.
The constraints of complex networks often lead to bandwidth restrictions or bottlenecks during periods of
congestion. For this reason, it is possible to set a primary and a secondary route for all calls to take
through the network. In addition to this, up to six user configurations may be designed and stored, which
may be invoked as alternative strategies in the event of link failure or disruption. The network manager
has access to comprehensive statistics and alarms which may stimulate such a disaster recovery plan.
A V100 network may be managed from the dedicated supervisor port of any chassis in the network. The
user logs on to the required unit and configures the network from the most convenient management port
using a clear and simple display, which may be accessed using a PC running a terminal emulation package
TM
such as HyperTerminal under Windows . Alternatively, the supervisor may be operated in a terse
teletype mode for integration into a central network management system. In either case, the port uses an
RS232 interface. The supervisor may also be accessed using the telnet protocol in an IP network.
This user manual describes the use, configuration and installation of the V100 multiplexer.
V100 Versatile Multiplexer Technical Manual Version 2.2
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