QSC DSP-3' Manual descarregar pdf (Página 6)

Section 1: Introduction- Basic Connector & Indicator Descriptions

Below are listed the connector and indicator callouts as they appear on the DSP-3. The bold type indicates the actual

labeling on the DSP-3. A brief description of each is provided.

“Front”-side connectors & indicators-

CH 1 INPUT- This 3-pin terminal-block jack is where you connect the audio line level input to the DSP-3’s channel #1 input block. It is an

electronically balanced input with an input impedance of 7.5k Ohm (7,500 Ohms). When used in an unbalanced configuration, the input

impedance is 3.7k Ohms (3,700 Ohms).

CH 2 INPUT- Same description as CH1 INPUT, but assigned to the DSP-3’s channel #2 input block.

CH 1 OUTPUT- This 3-pin terminal-block jack provides post-DSP (processed) signal from the DSP-3 for daisy-chaining the processed signal

to a second amplifier. If using one amplifier only, this output can be unused or used as a monitor source. In the case of non-DataPort

amplifiers, this is the DSP-3 output that gets connected to your amplifier’s input connector. Signal source is the DSP-3’s channel #1 output

block.

CH2 OUTPUT- Same as description as CH 2 OUTPUT only the signal source is the DSP-3’s channel #2 output block.

Keep in mind that cross-routing is possible with the DSP-3. This means that the signal input as CH 1 can be routed

to CH 2 output (and vice versa).

DATA PORT- This HD-15 female jack is where you would connect the CM16a Amplifier Network Monitor (if used). The CM16a allows full-

featured amplifier monitoring (output power and load impedance measurements, internal amplifier temperature monitoring and much

more). Additionally, zone paging and other control features are provided.

RS-232- This DB-9 female jack is where the interconnecting serial cable to the host computer is plugged in.

EXTERNAL POWER- This jack is utilized when the DSP-3 is used with QSC Powerlight, MX, USA, PLX, RMX, or non-QSC amplifiers. External

power is not required for all other directly-mounted-to-amplifier situations. We recommend the use of the QSC external power supply as

it has been fully tested with the DSP-3 to assure trouble-free operation. The power requirements for this jack are 15 Volts DC, 300

milliAmperes (mA), with the center of the plug being POSITIVE (+) and the outside being NEGATIVE (-). The size of the plug is: 2.5mm (0.100

inch) ID, 5.5mm (0.218 inch) OD and a length of 9.5mm (0.375 inch).

POWER indicator- This blue LED illuminates when the DSP-3 has power properly applied to it.

SIGNAL indicator- This green LED illuminates when the DSP-3 detects an input signal on either channel.

“Back”-side connector-

DataPort jack- This unlabeled HD-15 male jack is where amplifiers with a DataPort are connected to the DSP-3. When used in applications

where the DSP-3 is mounted directly to the amplifier, this jack plugs directly into the female jack on the rear of the amplifier, requiring no

cable. When used in applications with QSC amplifiers where “remote” mounting is required, this is where you would make the amplifier

to DSP-3 cable connection. When used with non-DataPort equipped QSC amplifiers or non-QSC amplifiers, this connection is unused and

the feature set of the DSP-3 is reduced.

When connecting to Powerlight 6.0 & 9.0 amplifiers, pin #9 must not be present on the

interconnecting cable between the DSP-3 and Powerlight 6.0 or 9.0 or amplifier damage may result!

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