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

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2.6.1 Push-to-Talk Driver Module (PTT-D)
The PTT Driver Module (PTT-D) conditions and amplifies instructions generated at a remote Command
Center for transmission to the Command Center. A PTT-D is needed only when a microphone is installed in
a Remote Command Center. The PTT-D is mounted in the Remote Command Center enclosure below the card
cage. A maximum of five (5) PTT-Ds are allowed in a 7200 Series System.
1
2
3
4
1 2 3 4 5 6 7 8
TERMINAL STRIP TB2 FOR
CONNECTION TO REMOTE
BACK-PLANE TB4
TERMINALS
TERMINAL STRIP TB1 FOR
CONNECTION TO PTT-R MODULE
AT COMMAND CENTER
TO REMOTE COMMAND CENTER BACK-
PLANE TERMINALS TB4-11 TO TB4-16
SEE FIGURE 2-26
TB1
TB2
J1
MICROPHONE SUPERVISION TERMINAL
(-)
(+)
(-)
(+)
24 VDC FROM BACKPLANE
AMPLIFIER ACTIVATION TERMINALS
OUT (-)
OUT (+)
IN (-)
IN (+)
PTT-R MICROPHONE
RISER
NOT USED
Figure 2-24
Designation Description Comments
TB1-1 Microphone Input, positive (+), power limited, From PTT-R TB1-12.
TB1-2 riser Input, negative ( - ), power limited, to PTT-R TB1-11.
TB1-3 (See Fig. 2-25 Output, positive (+), power limited, to PTT-R TB1-10.
TB1-4 for ratings) Output, negative ( - ), power limited, From PTT-R TB1-9.
TB2-1 24 VDC 24 VDC positive (+), internal, power limited, from Backplane TB4-1.
TB2-2 24 VDC negative ( - ), internal, power limited, from Backplane TB4-2.
TB2-3 Amplifier activation Positive (+), power limited, internal.
TB2-4 Negative ( - ), power limited, internal.
TB2-5 Microphone supv. Internal. Power limited.
TB2-6 thru -8 Not used.
CONNECTOR
J1
Header Cable connection to Backplane TB4-11 to 16.
Table 2-8 Push-to-Talk Driver (PTT-D)
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