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Configuring the Amplifier Chassis
Description, Installation, Operations, and Maintenance Manual
Federal Signal www.fedsig.com
8.0 Configuring the Amplifier Chassis
To configure the Amplifier Chassis:
• The four amplifier cards have to be of uniform type: either DC or AC models. Each
module has a separate power fuse.
• Each amplifier chassis needs to have its address set using the mini dip switches,
which are visible on the back of the amplifier chassis. Set switches to reflect the
desired amplifier number in the PAGASYS GEN II System Manager Software.
8.1 Setting the Dip Switches
Set the dip switches using a reverse binary logic, with the switch in an up position
representing 0, and in a down position representing 1.
For example,
• For amplifier 1, set the dip switches to down-up-up-up-up to represent 10000.
• For amplifier 2, set the dip switches to up-down-up-up-up to represent 01000, and
so on.
• Number the amplifiers starting at one in the cabinet bottom amplifier position,
and then increasing by one moving up.
• In a 4 kW system, set the amplifier dip switches for the amplifier at the top of the
cabinet to up-up-down-up-up to represent 00100 (represents amplifier four). See
picture below.
Figure 53 Setting Mini Dip Switches
• Amplifier Chassis housed in an auxiliary cabinet should have dip switches continue
numbering from the Amplifier Chassis in the connected controller cabinet.
• Jumpers on the Amplifier Signal Backplane do not function as fuses, but are
connections to configure the chassis to have a Standby Amplifier. If ISMT support is
needed in the Amplifier Chassis, you must remove all four jumpers to avoid damaging
the ISMT card.