L-Acoustics LA8 User Manual - page 23
Installation
Signal panels
The six XLR connectors on the rear panel are for analog or digital signal cabling.
Two IN and two LINK connectors are for analog signals, and one IN and one LINK connectors are for AES/EBU signals.
LA8 signal panel
IN A
LINK A
IN B
LINK B
AES/EBU
IN & LINK
Analog input mode
The XLR connectors are wired according to IEC 60268-12:
— pin 1: shield
— pin 2: + signal
— pin 3: - signal
Analog input panel wiring
LINK A
LINK B
IN A
IN B
1
1
1
1
2
2
2
2
3
3
3
3
Input A
-+
Input B
-+
z
The female XLR input connectors IN A and IN B can receive two analog signals. The headroom of the input circuits is
high enough to accept the maximum output level from virtually any line level signal source (up to 22 dBu).
Each LINK connector is passively wired in parallel to the corresponding IN channel. The input impedance is high enough
(22 kΩ, balanced) to allow multiple parallel input connections.
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LA8 user manual (EN) version 13.1