Toa VP-2241, Инструкция по эксплуатации

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Chapter 2: PRODUCT DESCRIPTIONS
2. NOmENclATurE AND fuNcTIONS
2-23
4. PA Link Connector [PA LINK]
This rJ45 connector connects to the power
amplifier output of the VX-200SP or VX-200SZ
module.
When this unit is used as the standby amplifier,
connect to the VX-2000SF’s standby PA LINK
connector.
Output audio signals are transmitted to the power
amplifier, and the power amplifier’s audio monitor
signals are returned to this PA link connector.
It is also possible to retrieve data regarding power
amplifier overheating status and blown DC fuses.
Hum noise may be generated by a ground loop
of the PA link’s audio input accidentally created in
the system. To cut off the ground loop, make the
ground lift setting referring to the procedure on
p.
8-41 .
5. BGM Input Terminal [BGM]
removable terminal block (5P), BGm signal input:
−10 dB*
1 * 2
/600 Ω balanced, Mute input: no-voltage
make contact.
receives BGm signals and BGm mute control
signal (make contact).
When the mute input terminals are closed, BGm
signals are muted.
[Pin function]
* 1 0 dB = 1 V
* 2 can be changed to “0 dB* 1 .” (see p. 8-42 .)
6. BGM Volume Control [VOL.]
Adjusts the BGm input level.
If the PEAK indicator lights red, reduce the BGm
output level at the BGm source equipment or BGm
input level with this volume control.
7. DC Power Input Terminal [DC POWER IN]
connects to the VX-3000DS Emergency Power
Supply’s DC power output terminal.
H c E G +
BGm signal input mute input
Hot cold Earth Ground control
input