FCI FireVac 7200 Series, Дополнение к инструкции по установке/эксплуатации, Страница: 47 / 66

2.6.2 Push-to-Talk Receiver Module (PTT-R)
The PTT Receiver Module (PTT-R) receives the conditioned and amplified instructions generated at a remote
Command Center. A PTT-R is needed only when a microphone is installed in a remote Command Center.
The PTT-R is mounted in the main Command Center on the FCI-MB. One (1) PTT-R is required per system with
a maximum of five (5) PTT-Ds allowed.
A. PTT-R Addressing information
Switch SW1 (“ones" digit) and Switch SW2 (“tens” digit) can be addressed using addresses 00 - 99.
These addresses are interpreted by the Audio Evacuation Unit/Keyboard Display Unit (AEU/KDU) as addresses
100 -199 (identically to the AOM-2s). To set the address of an PTT-R module, refer to the following example.
A maximum of one PTT-R can be used per system
EXAMPLE:
For address 00, SW1 is set to “0" and Switch SW2 is set to ”0". (The AEU/KDU interprets switch address “00"
as ”100".)
1 2 3 4 5 6 7 8 9 101112
TB1
P5
ADDRESS SWITCH
TENS DIGIT
ADDRESS SWITCH
ONES DIGIT
5
9 8
7
6
4
0
1
23
5
9 8
7
6
4
0
1
2 3
CLASS A/B OUT (+)
CLASS A/B OUT (-)
CLASS A RETURN (+)
CLASS A RETURN (-)
SHIELD GROUND-WIRE CONNECTION
SHIELD GROUND-WIRE CONNECTION
NOT USED
NOT USED
IN (-)
OUT (+)
OUT (-)
IN (+)
REMOTE MICROPHONE
RISER TERMINALS
AEU SIGNALING LINE
CIRCUIT TERMINALS
Note: PTT-R must be assigned as address 00
on AEU signaling line circuit.
Figure 2-26 Push-to-Talk Receiver, PTT-R
Designation Description Comments
TB1-1 AEU-SLC Input, positive (+), power limited, from backplane TB2-7.
TB1-2 See Fig. 2-1 Output, negative ( - ) power limited, out to additional devices.
TB1-3 for ratings Output, positive (+), power limited, out to additional devices.
TB1-4 Input, negative ( - ), power limited, from Backplane TB2-6.
TB1-5, -6 Not used.
TB1-7, -8 Shield ground points.
TB1-9 Microphone Input, negative ( - ), power limited, return from PTT-D TB1-4.
TB1-10 riser Input, positive (+), power limited, return from PTT-D TB1-3.
TB1-11 See Fig. 2-25 Output, negative ( - ), power limited, to PTT-D TB1-2.
TB1-12 for ratings Output, positive (+), power limited, to PTT-D TB1-1.
CONNECTOR
P5
Connects to P5 of the FCI-MB.
Table 2-9 PTT-R Field Wiring
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