Bose 2150 Podręcznik instalatora - Strona 14

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4.0 Operation

8. AC Power sequence connector

A three-pin Euro style terminal and mating connector are supplied with each amplifier to

allow the amplifier to be sequenced on or off remotely. This allows multiple amplifiers to be

powered on or off locally by using the first amplifier as the on/off master. These terminals

are located on the rear panel of the amplifier and are labeled SEQUENCE. The three termi-

nals are from left to right and labeled ground, SND, and RCV (see Figure 6).

The sequence feature can be used to turn on or off one or more Bose

used with more than one amplifier the sequence feature will turn the amplifiers on or off

sequentially at about 0.5 second intervals. This will prevent a large turn-on surge through

the AC mains supply that could possibly cause disruption of the flow of current through the

AC mains.

SEQUENCE

SND RCV

Turning a single amplifier on or off:

Connect the positive side of a 12 to 15 VDC supply to the RCV terminal of the SEQUENCE

connector. Connect the ground side of the 12 to 15 VDC supply to the GROUND terminal of

the sequence connector.

The amplifier will remain on as long as the DC voltage is present. The amplifier will turn off

when the DC voltage is interrupted by opening the circuit at the SEQUENCE connectors. If

a switch is used to control the SEQUENCE circuit, it should be a SPST (single pole single

throw) type. A control device such as a contact closure contained within a system such as

Creston

, AMX

or Panja

The contact closure must be a latching type and not a momentary contact closure.

Turning multiple amplifiers on or off:

Starting with the first amplifier in the sequence to be turned on, connect the positive 12 to

15 VDC to the RCV terminal. Next, connect a wire from the SND terminal of the first ampli-

fier to the RCV terminal of the next amplifier to be turned on. Continue in this manner until

all amplifiers in the sequence are connected.

If the amplifiers are mounted together in a rack where the chassis grounds are connected

through common connection via the metal rack rail or by a common AC ground, no other

connections should be required (see Figure 7). If this is not the case, simply connect all of

the chassis ground terminals together (see Figure 8).

SEQUENCE

SND RCV

SEQUENCE

SND RCV

SEQUENCE

SND RCV

can also be used to remotely control the power of the amplifier.

12-15 VDC Supply

amplifiers. When

November 19, 2001

Figure 6

Sequence connectors

Figure 7

Connections by common AC

ground or via the metal rack

AM259107_00_V.pdf