Dsp Requirements - Nortel RLC Installation And Administration Manual

June 2005
The following table gives a summary of how to choose the correct size RLC for
your specific remote service needs.
IF the number of
remote-service ports in
your network is
under 17,
between 17 and 32,
over 32,

DSP requirements

The total number of simultaneous telephone calls that you want to support also
determines the number of DSP application modules that you need.
Both 16- and 32-port RLCs come equipped with enough built-in DSP
resources to provide non-blocking service for up to 8 simultaneous calls.
Each remote telephone call to the host PBX requires one DSP channel.
Each DSP application module has eight channels that provide eight
additional voice paths between host and remote sites.
The following sample configurations illustrate the capacities of a few common
RLC–DSP combinations:
1. The basic 16-port RLC ships with eight built-in DSP channels. With no
hardware changes, the 16-port RLC supports up to 16 users, allowing up to
eight simultaneous calls.
2. When you add one DSP application module to the 16-port RLC, the line
card now holds 16 DSP channels. This combination supports up to 16 users,
allowing up to 16 simultaneous calls.
3. The basic 32-port RLC ships with eight built-in DSP channels. With no
hardware changes, the 32-port RLC supports up to 32 users, allowing up to
eight simultaneous calls.
RLC Installation and Administration Guide
THEN you need
a 16-port RLC.
a 32-port RLC.
to consult with your Nortel distributor to determine
the most cost-effective combination of 16- and 32-
port RLCs.
Planning for RLC installation
49