FORUM OPERATION AND MAINTENANCE MANUAL 9601
PAGE 16
MODULE DESCRIPTIONS
The input modules are provided with rear panel connectors for
Microphone Pon XLR), and Line Pjack), both balanced. Insert send
and return signals are available on a single stereo jack socket, and
are unbalanced. A Direct Output, unbalanced and ground sensing,
is also available via a jack socket on the rear panel.
Wiring of the XLR and jack connectors follows normal
conventions, so that compatibility with existing cables is provided
where possible.
XLRQ
Pin 1
Ground
Pin 2
ve Phot)
Pin 3
Signal -ve Pcold)
Jack
Line
Insert
Direct Output
Tip
Hot P+ve)
Send
Hot P+ve)
Ring
Cold
Return
Ground Sense
Sleeve
Ground
Ground
Ground
Blanking panels are fitted to the main chassis to allow the fitting of
multiway connectors. Consult your authorised dealer for more
information.
All balanced XLR inputs are wired to the international standard of
Pin 2 HOT. If you need to connect unbalanced equipment to inputs
or outputs, wire the cold terminal to Pin 3 for XLRs or the Ring for
jacks.
The microphone input is suitable for use with balanced, low
impedance microphones P150-200 ohms).
Do not use dynamic, unbalanced or battery powered microphones
with the +48 volt phantom power switched on damage to the
microphone may result.
The gain of this section is variable from 6dB to 76dB, to give an
output of +4dB at the stereo mix outputs. This corresponds to a
sensitivity of -2dBu to -72dBu.