PLM Series Quick Start and Field Reference Guide rev 1.0.6
7. Quick Guide Overview
25
Ser. N:o
Removed!
SPEAKER OUTPUTS
INPUT
1
INPUT 2
LINK
1
LINK 2
AES/EBU
INPUT 1-2
LINK 1-2
LINK
SEC
PRIM
ACT
LINK
ACT
SWITCHED 10/100 Base-TX
Must be grounded/earthed
Made in Sweden
PIN 1: SCRN 2: POS 3: NEG
ANALOG WITH
I
SO-
F
LOAT
TM
CH
1
CH
1
CH
2
CH
2
CLASS 3 WIRING
50-60Hz
PLM
4000
1
200-240V 2950W
INPUT
1
INPUT 2
LINK
1
LINK 2
AES/EBU
INPUT 1-2
LINK 1-2
LINK
SEC
PRIM
ACT
LINK
ACT
SWITCHED 10/100 Base-TX
Must be grounded/earthed
Made in Sweden
PIN 1: SCRN 2: POS 3: NEG
ANALOG WITH
I
SO-
F
LOAT
TM
Ser. N:o
Removed!
CLASS 3 WIRING
SPEAKER OUTPUTS
1+/- CH 1+/-
2+/- CH 2+/-
1+/- CH 2+/-
2+/- CH 1+/-
50-60Hz
PLM
4000
1
200-240V 2950W
1
2
3
4
5
6
7
8
9
1
2
Figure 7.2b: 2-channel PLM rear panel layout
7.2.1 Input connectors and Links
Analog inputs
Analog inputs are available on two standard XLR3F latching connectors. The inputs are electronically
balanced and feature Lake Iso-Float circuitry. The impedance is 20 kOhms, and the inputs can accept a
maximum input level of +26 dBu.
Analog links
Two latching XLR3M connectors are fitted adjacent to the analog input connectors. These are paralleled to
the input connectors to provide an unprocessed analog loopthrough to feed additional PLM Series units, or
other equipment.
AES/EBU inputs
A latching XLR3F connector is provided which accepts an AES/EBU digital audio signal. Input
impedance is 110 ohms.
In comparison to analog signals, digital audio
signals such as AES/EBU require quite different
cabling and routing techniques. In particular,
standard XLR “mic cables” - even high-quality
ones - are rarely suitable for digital audio. Always use 110
ohm digital audio cables. See sections 10.2.2 and 12.5 in the
PLM Series Operation Manual for further information before
making any connections to the AES/EBU inputs.
The AES/EBU digital audio format is two-channel,
and thus both PLM inputs are fed via a single
connector. Selection of the analog or digital inputs is
made via the front panel display or Lake Controller
software.
See section 10 in the PLM Series Operation Manual
for full details of connector pinouts, etc.
