Digital Audio Connections; Midi Connections; Word Clock Connections - Lexicon 960L Owner's Manual

The Mainframe

Digital Audio Connections

The AES interface requires balanced connections, using
high-quality, low-loss, controlled-impedance, shielded,
twisted-pair cables designed for data communications,
such as Belden 9860 (braided shield) or Belden 9271 (foil
shield). The use of ordinary microphone cable can cause
digital interfaces to work unreliably. Remember that the
maximum recommended length for AES cabling is 100
feet (30 meters).
Following AES conventions, the odd-numbered channels
are on the left channel of each AES stereo pair, the even-
numbered channels on the right. The word length is 24
bits, at sample rates of 44.1, 48, 88.2, or 96 kHz. To use the
digital inputs, the 960L can be synchronized to AES input
1-2 or to the TTL Word Clock input. Note that all digital
inputs must be synchronized to the same master clock for
operation without artifacts.
For routing and panning, see Section 4, Operations in
Detail.
1-8

MIDI Connections

Use standard, 5-pin DIN MIDI cable assemblies, available
from your local dealer. Chapter 6, MIDI describes the 960L
MIDI functionality.
2 High
3 Low

Word Clock Connections

1 Ground
Use standard, 75 ohm BNC cables, available from your
local dealer. The self-terminating loop-thru TTL input facili -
tates daisy-chained clock distribution. The 960L will refer its
1 Ground
internal Word Clock to the falling edge of the input square
wave. The 960L output is a TTL-compatible square wave
3 Low
with the falling edge aligned with the start of the 960L sam-
ple period.
2 High
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