Lab.gruppen PLM 20000Q - Manual (Page 74)

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Back Panel Interface
PLM Series Operation Manual rev 1.2.3
Connect the ‘+’ loudspeaker terminals to the red binding posts and the ‘ – ‘ terminals to the black binding
posts. There are three methods of connecting speaker cables to the binding posts.
1. Solder 4 mm banana-plugs to the ends of the speaker wires and plug into the center of the turrets.
2. Thread the stripped ends of the wires through the holes in the posts. Enter the wires for output
channels 1 and 3 from above and for channels 2 and 4 from below. Tighten the plastic turrets by
finger only, being careful not to overtighten.
3. Crimp 4 mm insulated spade terminals onto the ends of the wires and push into the binding post
assembly from above (Ch. 1 & 3) or below (Ch. 2 & 4). The hole in the post is ignored. Hand tighten
plastic turrets, being careful not to overtighten.
8.2 Analog Inputs and Outputs
8.2.1 Analog Input and Link XLR Connections
Two electronically-balanced analog inputs are provided via latching XLR3F connections. The Link outputs on
XLR3M connectors are directly paralleled to the inputs.
INPUT 1 INPUT 2 LINK 1 LINK 2
PIN 1: SCRN 2: POS 3: NEG
ANALOG WITH I SO- F LOAT TM
Figure 8-11: Analog Input and Link XLR Connections
When linking analog inputs of several PLMs, consider that the drive capability of
the source’s output stage (e.g. mixing console) may be limited. Generally it is
inadvisable not to parallel link more than four inputs. If more links are required,
use a good quality balanced audio line driver or distribution amplifier.
8.2.2 Analog & AES3 XLR Wiring and Pin Out
All XLR connections are wired to IEC268 as shown in Figure 8-12.