FCI FireVac 7200 Series, Installation/Operating Addendum

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2.4 Basic System Amplifier
2.4.1 FCI-Motherboard (FCI-MB)
The FCI-MB microprocessor-based module controls and supervises the functions of the 25 VRMS amplifiers
in the FireVac
®
7200. This module is “DIP" switch programmed and can house 1 or 2 amplifiers, each capable
of supplying 25 Watts. These amplifiers (FCI-AAM-25) are activated either by hardwired input or, in the case
of a distributed amplification system, via the AAI unit. Recorded messages are held in EEPROM memory on the
FCI-MB.
FIELD WIRING
Designation
Description Comments
TB1-1 TRBL N/C Trouble dry contacts, normally closed, power limited
TB1-2 TRBL N/O Trouble dry contacts, normally open, power limited
TB1-3 TRBL COM Trouble dry contacts, common, power limited
TB2-1 Amp. 1 Activation ( - )*
TB2-2 Amp. 1 Activation ( +)*
TB2-3 Amp. 1 Activation (+)*
TB2-4 Amp. 1 Activation ( - )*
TB3-1, -2 Not used.
TB3-3 Amp. power Power input ( - ), non-power limited. From Back plane TB4-1.
TB3-4 24 VDC (nom.) Power input (+), non-power limited. From Back plane TB4-2.
TB3-5 Not used.
TB4-1, -2 Not used.
TB5-1 Amp. 2 Activation ( - )* Single Channel operation with aux. tone
TB5-2 Amp. 2 Activation (+)* Single Channel operation without aux. tone
TB5-3 Amp. 2 Activation (+)* Dual Channel operation
TB5-4 Amp. 2 Activation ( - )* Distributed Amplifier operation
TB6-1 Not used
SWITCHES
S1
8-pos.
S5 Amplifier programming switches, See Figures 2, 3.
CONNECTORS
P3
Header, Amp. 2 Additional 25-watt amplifier connection point.
P4 Header, Amp. 1 Primary 25-watt amplifier connection point.
P5 Header, AAI or PTT-R Connection point for an AAI in a distributed amplifier,
or for the PTT-R in a main amplifier.
P6 Header, microphone Connection point for the system paging microphone, power limited.
This header is jumped out on a Dual Channel System,
or with distributed amplifiers.
P7 Header, aux.
power supply
Connection point for the distributed amplifier power supply.
*See Figure 2-4 for Single Channel operation without Aux. tone.
*See Figure 2-5 for Single Channel operation with Aux. tone.
*See Figure 2-7 for Dual Channel operation.
*See Figure 2-20 for Distributed Amplifier operation.
Table 2-4 FCI-MB Field Wiring, Switches, Connectors
30 of 61 9000-0405
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