QSC CM16a Manual download pdf (Page 12)

Section 1: Introduction- Basic Connector & Indicator Descriptions

12

RS-232- This DB-9 fe-

male jack is where the

serial cable between the

DSP-3 and the computer

is plugged in.

FRONT PANEL

CH 1 INPUT, CH 2 INPUT- These terminal-block

jacks (receptacles) are where you connect the

line-level audio inputs to the DSP-3.

They are electronically balanced with an input

impedance of 8.3k Ohm. If used in an unbalanced

configuration, the input impedance is 3.7k Ohms.

EXTERNAL POWER-

2.5mm barrel connector-

Center (+), Outer(-), 15

VDC, 300mA. Use only if

your amplifier does not

supply the required op-

erating voltage from its

DataPort (or non-

DataPort amps).

CH 1 OUTPUT, CH2 OUTPUT-- These terminal-

block jacks provides post-DSP (processed) signal

from the DSP-3 for downstream devices (ampli-

fiers, monitoring busses, daisy-chaining the pro-

cessed signal to a second amplifier). In the case

of non-DataPort amplifiers, these are the DSP-3

output that gets connected to your amplifier’s

input connector.

DATAPORT- This is the “in-

put” DataPort. If the DSP-3 is

used with QSC DataPort prod-

ucts that can supply the audio

inputs or provide amplifier con-

trol & monitoring, this is where

they are connected to the DSP-

3.

SIGNAL indicator- This green

LED illuminates when the

DSP-3 detects an input signal

on either channel. Dual bright-

ness levels indicate signal

level. At -40dB, it will light

dimly; at -20dB it will light

brightly.

POWER indicator- This blue

LED illuminates when the DSP-

3 has power properly applied.

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