Revision C • 10/03
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6-5
6 Accessories
digital
Telco/Codec Module
DIP Switch
#
Setting
DS2
4
On
DS2
5
Off
Refer to pages 2-28 to 2-31 for more informa-
tion on configuring the RLS module. Refer to pages
2-24 to 2-27 for more information about config-
uring the Telco/Codec module.
External RLS and the BMX
digital
Server
Connecting an External RLS, and properly set-
ting up the controlling module, results in a mod-
ule display that simply lists the sources as: Input
01, Input 02, Input 03, etc., as the Source Selector
is rotated. These new settings must be saved to a
session file in order to change these default names
(see Chapter 4 for details), to more accurately re-
flect the RLS input sources.
In the session file, a typical External RLS entry
looks like this:
[RLS_145]
<The range for RLS modules is 145 (for the
first RLS module from the left end) to 159. The
range for Telco modules is 97 (for Telco 1) to 102
(for Telco 6). Each Telco or RLS module has one
of these unique numbers (see page 4-7).>
Selection=4
<This is the current selection from the last time
the session file was saved. It can be any number
from 1 to 32.>
Label_1=Delta
Label_2=Foxtrot
Label_3=Hotel
<Label_1 through Label_16 are reserved for the
sixteen possible analog sources.>
Label_17=Golf
Label_18=Echo
<Label_17 through Label_32 are reserved for
the sixteen possible digital sources.>
Labels appear alphabetically in the module’s
display (e.g. Alpha, Bravo, Charlie, Delta). The
source type (analog or digital) is transparent to
the board operator. Missing or empty entries are
not displayed on the module.
When the Ext. RLS is used with digital sources,
physical input 1 on the External RLS uses La-
bel_17, input 2 uses Label_18, and so up to input
16 which uses Label_32. An analog device can
also be connected to the analog input on the mod-
ule, and it can be selected like the RLS sources by
simply adding an entry line for Label_1 (when
Label_1 is selected the module automatically
switches to the analog input).
Conversely, when an Ext. RLS is used with ana-
log sources, the input entries match the inputs on
the External RLS (e.g., input 1 uses Label_1, in-
put 2 uses Label_2 and so on up to input 16 which
uses Label_16). A digital device can also be di-
rectly connected to the digital input and selected
using the Source Selector by adding an entry line
for Label_17, which, when taken, switches the
module to use the digital input.
For more information on the BMX
digital Server
and session files, see Chapter 4.
Typical External RLS Applications
Two typical applications for the External RLS
and the BMX
digital are shown page 6-6.
In Application 1, one or two External RLSes
are connected to a single controlling module. The
first External RLS is used for either analog or digi-
tal signals; the second External RLS is used for
the other type of signal. For example, if the first
External RLS is used for analog signals, the sec-
ond is used for digital signals.
In Application 2, multiple External RLSes are
used for analog sources. In this example, some or
all of the analog sources are made available to
multiple BMX
digital modules. Each analog input
can cascade, using the THRU output, to additional
External RLSes. In this way, the same analog
