Revision C • 1/04
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2-24
2 Installation
digital
QUICK GUIDE TO THE TELCO / CODEC MODULE
Three connectors come standard on the optional Telco module: one 6-pin analog audio input connec-
tor, one 3-pin digital audio input connector, and one 24-pin logic connector. The connectors are hidden
by the meter panel in normal operation.
AUDIO INPUTS
ANAL
ANAL
ANAL
ANAL
ANALOG INPUT —
OG INPUT —
OG INPUT —
OG INPUT —
OG INPUT —
The 6-pin analog input accepts line level stereo or
mono signals. When a mono signal is connected, parallel the signal to the
left and right input pins.
D I G I T
D I G I T
D I G I T
D I G I T
D I G I TA L I N P U T —
A L I N P U T —
A L I N P U T —
A L I N P U T —
A L I N P U T —
The 3-pin digital input accepts AES-3
(AES/EBU) or S/PDIF signals (when the circuit shown on page 2-11 is used).
LOGIC
L
L
L
L
LOGIC I/O —
OGIC I/O —
OGIC I/O —
OGIC I/O —
OGIC I/O —
The 24-pin logic connector allows control of the connected
device by the module, or external control of the module by the device. When
the device connects to the module through a switcher (router or External
RLS), source selection addressing is output from this connector. The source
(analog or digital input), whether a switcher is used and other logic selections
are configured by the SETUP DIP switches (see Switch Definitions, page 2-
25). For additional module information, see pages 2-26 and 2-27.
Analog Inputs - Stereo
Right High (+)
Right Low (-)
Shield
Left High (+)
Left Low (-)
Shield
3
2
1
6
5
4
(wire insertion end view)
Analog Inputs - Mono
High (+)
Low (-)
Shield
High (+)
Low (-)
Shield
3
2
1
6
5
4
(wire insertion end view)
Digital Inputs
High (+)
Low (-)
Shield
3
2
1
(wire insertion end view)
