Crown FM250 Manual do Utilizador descarregar pdf (Página 12)

2-4 FM10000 User's Manual

2.4.2 Voltage Surge Protection Device

Install the Voltage Surge Protection Device in accordance with the installation 

procedures provided with the device. Consult National Electrical Code for your 

area for proper conductor size and colors of wire.

2.4.4 Audio Input Connection

Illustration 2-14 Audio Input connection

The Audio input connection is an XLR Female on the back of the FM250 as shown 

below installed in the rack in illustration 2-14.

2.4.3 Low Pass Filter and RF Output

Analog L and R : 

XLR Left and Right

AES/EBU Input :

XLR Left only (with 

optional DP-3)



1) Remove Low Pass Filter from shipping container being careful not to 

drop or damage the filter during the process of removal.

2) Remove shipping cover from output connector at the bottom of the 

cabinet and save bolts for Low Pass Filter installation.

3) Install low pass filter onto the connector along with upper retaining 

clamp as shown in illustration 2-13. Use bolts from previous step to 

fasten down filter to connector. Connect "input" to connector on cabinet.

4) Tighten bolts onto connector and then tighten upper retaining clamp 

for a snug fit. Do not over tighten clamp enough to deform the shape of 

the low pass filter; the filter must remain perfectly round.

Illustration 2-13 Low Pass Filter and RF Output connections

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Crown FM250 Manual do Utilizador Página 12