Lexicon 300 - Rear Panel Overview

Time Code In
3-pin female XLR con-
nector for input of
SMPTE (Drop cr Ncn-
drop), EBU, or FILM
time code formats.
(Electronically bai-
axed, 1OOmV p-p
minimum)
Digital Inputs and Outputs
Installing the 300
The Rear Panel
Inputs
Three cormactors are provided for digi+al input:
AES/EBU profea&nal format (1):
3-pin female XLR
SIPDIF EIAJ CP-340 oomwmer format (2):
unbalanced ccaxial RCA
optical (fiber-optic)
One of these ccnnsctcws may bs selected fCr
digital input.
outputs
Outputfcrmatoan be AESEBU crWDlF.Out~
put always gces to all three digital outputs.
Digital interfaces conform to both the AES ANSI
S4.40-1965 speo and the EBIJ dcc tech 3250.
Input/output impedance levels of the AESiEBU
connaotcrs oomply w!th the CClTr V.11 EIA-
422A speoifiiaticn.
I
Analog Inputs and Outputs
3-pin XLR ocnnectcrs, eiec$rcnicaily balanced.
Either pin 2 cr pin 3 can be used as high but, to
maintain polarity when transferring data to the
digital domain, pin 2 high ocnventicn is used by
Lexicon.
Pin I andeitherpinZcrpin3cf eachoutput must
be grcunded for unbalanoed operation.
Input impedance is 5OkQ unbalanced. and
1 OOW balanced. Inputs accept input levels from
-14dBu to +ZOdBu.
Output impadanos is 7562, and levels up to
+19dBu are possible.
/
I
I
AC Power
Communications
MIDI Connectors
Standard 3-pin IEC
Port
P0wer cmmectcr.
DE9 connector, re-
Out: Transmits MIDI data to other equipment.
se~ad for futura sn~
Thru: Passes any MIDI data received without
hanoaments.
change.
In: Receives MIDI information from other MIDI
aauicmsnt such as master kevbcard controllers,
Input Gain
2-position (In/Out)
switch for matching
input gain to the
scuroa being used.
ln=+l6dB:Out=OdB.
M~D~fcotccntrcllers,saquan&rsand synthesis-
e*s.
1-3
.-