FCI FireVac 7200 Series, Дополнение к инструкции по установке/эксплуатации

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The amplifier output can be wired for Class A, Style Z or Class B, Style Y operation. Amplifier output should
use twisted, shielded wiring if being run in the same conduit or raceway as either an ALU or AEU signaling line
circuit. Use twisted, unshielded wire if the amplifier audio output is run in a separate conduit or raceway. It is
important to connect the shields of all entering and exiting wires at each electrical connection point, and to
ensure that these shields are not connected to earth ground. Shields must be terminated on each FCI-AAM-25
at TB1-1 or TB1-2. All amplifier output power is inherently power limited.
Designation Description Comments
TB1-1, -2 Shield termination point.
TB1-3 Audio Amplifier Class B (+) field wiring, power limited. Connect to speakers
Output AOMs and AAIs.
TB1-4 Class B ( - ) field wiring, power limited. Connect to speakers
AOMs and AAIs.
TB1-5 Class A (+) field wiring, power limited. Connect to speakers
AOMs and AAIs.
TB1-6 Class A ( - ) field wiring, power limited. Connect to speakers
AOMs and AAIs.
TB2-1 Standby Audio Input (+), internal, power limited.
Input
TB2-2 Input ( - ), internal, power limited.
TB2-3 Output (+), internal, power limited.
TB2-4 Output ( - ), internal, power limited.
P1 5-position Header Factory set with jumpers in positions 3 to 5 (left to right).
This is the setting for 25 VRMS operation. DO NOT REMOVE
LEDs
LED1
Green Amplifier supervision.
LED2 Yellow Speaker circuit trouble
Switch
S1
Back-up Mode When a second FCI-AAM-25 is used for 100% backup
Enable on the FCI-MB.
Table 2-5 Audio Amplifier Module (FCI-AAM-25)
CAUTION: Disconnect all sources of power before servicing, removing, or inserting any circuit boards.
Control unit and associated equipment may be damaged by removing and/or inserting cards, modules,
or interconnecting cables while the unit is energized.
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