Extron electronic Quick Start Guide - RAC 104, cont’d, QS-2RAC 104 Quick Start Guide, Step

Quick Start Guide — RAC 104, cont’d

Step 4

If the RAC 104 is to be connected to a computer or host controller for remote control, connect the host’s RS-232 cable to the RAC 104’s

3-pole captive screw RS-232 connector. Wire the connector as shown below. See chapter 3 for more information on remote control.

Transmit (Tx)

Receive (Rx)

Ground (Gnd, )

RS-232 Tx Rx

Pin	RS-232 function	Description
1	Tx	Transmit data
2	Rx	Receive data
3	Gnd	Signal ground

Step 5

Set the line level selector DIP switches to -10 dBV (unbalanced, consumer line level) or +4 dBu (balanced, professional line level).

IN OUT

A B A B

ON

LINE LEVEL

+4 dBu

-10 dBV

Step 6

Connect power cords. Wire the RAC 104’s power connector as shown below.

CAUTION

When connecting the power supply, voltage polarity is extremely important. Applying power with incorrect voltage polarity could damage the power supply and the RAC 104. Identify the power cord negative lead by the ridges on the side of the cord or a black heat shrink wrapping around it.

SmoothRidges

A A

SECTION A–A Tie Wrap

Orange Captive Screw

Power SupplyConnector

Output Cord

The two power cord wires must be kept separate while the power supply is plugged in. Remove power before wiring.

Step 7

Turn all the equipment on.

Step 8

Set volume, bass, and treble levels using the front panel controls, Simple Instruction Set commands, or the Extron Audio Products Control Program. See chapters 2 and 3 for more information.

QS-2 RAC 104 • Quick Start Guide