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Terminating Speakers to MDF
Description, Installation, Operations, and Maintenance Manual
Federal Signal www.fedsig.com
To terminate speakers to MDF:
• On the target amplified audio distribution card, ter/- speaker wires to primary
Amp A f (F+) and forward – (F-) spring terminal block
• If a speaker loop is needed, connect return speaker wire to r (R+) and reverse
– (R-) spring terminal block
• This version of the amplifier audio distribution card (P-AADC2-G) allows the
amplifier to be connected to up to two speaker runs. If a second speaker run is needed,
wire the second speaker wire set to the secondary set of terminal blocks
Figure 62 Target amplified audio distribution card (Amp A)
10.2 Terminating a speaker to Amplifier Chassis 2, Amplifier 2
Assuming the use of a standard amplified audio distribution card, P-AADC2-G, with
spring terminal block connectors for speakers.
Amplifier Chassis 2 will already be terminated to the 8-pin connector on the amplified
audio distribution card in slot 2 on the audio (left) panel assembly in the MDF area.