
6.
External power amplifier 1 (input):
An input to connect an external power amplifier (see section External power amplifiers,
page 67). These pins are used in combination with the external power amplifier output
(no. 18).
7.
Call output:
An output that provides the call audio of the Plena Voice Alarm System.
8.
Override outputs:
Six volume override outputs to override local volume controls in each zone (see section
Volume overrides, page 66).
9.
Trigger inputs:
Twelve trigger inputs to receive signals from third party equipment (see section Trigger
inputs, page 66).
10. Voltage selector:
A voltage selector to select the local mains voltage (see section Power, page 68).
11. Power switch:
A switch to switch the voice alarm router on and off (see section Power, page 68).
12. Mains power inlet:
A socket to connect the voice alarm router to the mains power (see section Power, page
68).
13. Ground:
A connection to electrically ground the router.
14. Firmware upgrade connector:
An RS232 connector to connect a PC to upgrade the firmware of the voice alarm router.
15. Configuration settings:
A set of DIP switches to configure the voice alarm router (see section Voice alarm router,
page 82).
16. System sockets:
Two RJ45 sockets to connect other voice alarm routers to the voice alarm router (see
section Voice alarm routers, page 51).
17. Router ID:
A rotary switch to set the ID of the router (see section Voice alarm router, page 82).
18. External power amplifier (output):
Two XLR sockets to connect external power amplifiers (see section External power
amplifier, page 52). This socket is used in combination with the external power amplifier
inputs (no. 6 and 24).
19. Volume override:
Three contacts (NC/24V/NO) to connect a fail-safe or a power-saving 4-wire volume
override (see section Volume overrides, page 56).
20. 24 VDC output: 800 mA.
21. Power amplifier failure:
Two pins (NC relays) to report a failure of the power amplifier.
22. Trigger outputs:
Two general purpose trigger outputs. For future use.
23. Back-up power inlet:
An inlet to connect a back-up power supply to the voice alarm router (see section Power,
page 68).
24. External power amplifier 2 (input):
An input to connect an external power amplifier (see section Voice Alarm Router, page
109). These pins are used in combination with the external power amplifier output (no.
18).
20
en | System overview
Plena
2013.07 | V2.0 |
Installation and Operation manual
Bosch Security Systems B.V.
Содержание Plena Power Amplifier
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