Bogen CAM2 User Manual

CAM2 Mixer/Pre-Amplifier

Installation and Use Manual

© 2001 Bogen Communications, Inc.
All rights reserved. Specifications subject to change.
54-2039-01R2 Printed in Korea. 0112

Notice

Every effort was made to ensure that the information in this
guide was complete and accurate at the time of printing.
However, information is subject to change.

Important Safety Information

Always follow these basic safety precautions when installing and
using the unit:

1. Read all instructions.

2. Follow all warnings and instructions marked on the product.

3. DO NOT place the product in a separate enclosure or cab­inet, unless proper ventilation is provided.

4. Never spill liquid on the product.

5. Repair or service must be performed by a factory author­ized repair facility.

6. DO NOT staple or otherwise attach the AC power supply
cord to building surfaces.

7. DO NOT use the product near water or in a wet or damp
place (such as a wet basement).

8. DO NOT use extension cords. The product must be
installed within 6 feet of a grounded outlet receptacle.

9. Use caution when installing or modifying paging or control
lines.

Applications Assistance

Our Applications Engineering Department is available to assist
you from 8:30 A.M. to 6:00 P.M. and on call until 8:00 P.M.,
Eastern Standard / Daylight Time, Monday through Friday.Call 1-
800-999-2809, Option 2.

Domestic and International Listings

The CAM2 is a UL, CSA listed product.

Contents

Page

INTRODUCTION & INSTALLATION ..........................................................................................3

Introduction ..........................................................................................................................................................3

Installation..............................................................................................................................................................3

PANEL DESCRIPTIONS ..................................................................................................................4

Front Panel ............................................................................................................................................................4

Rear Panel..............................................................................................................................................................4

INPUT CONNECTIONS ..............................................................................................................5-6

Microphone Inputs ..............................................................................................................................................5

Phantom Power....................................................................................................................................................5

Microphone Cable Wiring..................................................................................................................................6

AUX IN ..................................................................................................................................................................6

OUTPUT CONNECTIONS..........................................................................................................7-8

BAL/OUT to Balanced Input of Other Equipment......................................................................................7

BAL/OUT to Microphone Input of Other Equipment................................................................................7

LINE OUT..............................................................................................................................................................8

BRIDGING MIXERS..........................................................................................................................9

Bridging Connections..........................................................................................................................................9

OPERATION....................................................................................................................................10

Power ..................................................................................................................................................................10

MIC Gain Control..............................................................................................................................................10

AUX Gain Control............................................................................................................................................10

Clip Indicator......................................................................................................................................................10

Master Gain Control ........................................................................................................................................10

Output Level Meter..........................................................................................................................................10

AUDIO SYSTEM LEVEL ................................................................................................................11

Setting System Levels........................................................................................................................................11

SPECIFICATIONS ..........................................................................................................................12

LIMITED WARRANTY ..................................................................................................................13

Introduction & Installation

Introduction

The Bogen Model CAM2 is a mixer/pre-amplifier that provides four MIC inputs and one AUX input while supply­ing both MIC and high level outputs. The CAM2 is particularly well-suited for expanding the number of inputs of
Bogen public address amplifiers.

The CAM2 accommodates low-impedance microphones and has an input for tuners or other high level sources.
Outputs are provided for high-impedance unbalanced and low-impedance balanced MIC inputs and line level inputs
to a public address amplifier, tape deck or similar equipment.Units may be interconnected to provide a greater num­ber of inputs.

The CAM2 operates from a 120V AC, 60Hz source. It may be mounted in a standard 19" equipment rack using a
Bogen Model RPK35B rack mounting kit or in a wall with a Bogen Model WMK1 in-wall mounting kit.

Caution: To reduce the risk of fire or electric shock, do not expose this unit to rain or excessive moisture.

Unpacking

Your unit was carefully checked before leaving the factory. Inspect the shipping container and the unit carefully for
indications of improper handling. If the unit has been damaged, make an immediate claim to the distributor from
whom it was purchased. If it was shipped to you, notify the transportation company and place a claim.

Power & Grounding

The AC line cord has a three-prong plug that should be plugged into a three-wire, grounded 120V AC, 60Hz out­let. If a three-wire outlet is not available, then use an adapter and secure the pigtail lead to the grounded wall plate
mounting screw. It is important to ground the unit. If the wall plate screw is not grounded, connect the wire from
the GND terminal of the mixer/pre-amplifier to a suitable earth ground.

Installation

Rack Mounting

Bogen Model RPK35B Rack Panel Kit is designed to mount the CAM2 in a standard 19" sound equipment rack. The
panel is fabricated from cold-rolled steel and finished in black enamel.

In-Wall Mounting

Bogen Model WMK1 is designed to mount the mixer/pre-amplifier flush in a wall. Depth of the mounted unit is
3-1/2".

3

Panel Descriptions

Front Panel

1. Input Over Voltage LEDs (Clipping LED) - LED will light when input is overdriven.

2. MIC Channel Gain Controls - Controls the gain levels of the MIC channels.

3. AUX Gain Control - Controls the gain level of the AUX input.

4. Output Meter - LED meter indicates peak output signal level.

5. Master Gain Control - Adjusts the overall output level.

6. Power Switch & Power Indicator - Power switch will illuminate when Power Switch is turned "ON".

Rear Panel

1. Power Connection - 120V AC, 60Hz, .043A.

2. Output XLR Connector - Provides a balanced output compatible with most professional audio equipment.

3. Output Level Switch - Switch changes the nominal signal level of the XLR output from +4dB to -50dB.

4. Line Output Connector (Line Out) - RCA jack provides output signal levels compatible with most amplifiers,

recording equipment, and other audio equipment. Not affected by Output Level switch.

5. Bridging - The bridging jacks facilitate the connecting together of mixers to obtain additional inputs without using any
of the CAM2 inputs.

6. Auxiliary Input (AUX In) - A dedicated unbalanced auxiliary input for tuner, tape deck, CD player, etc.

7. MIC Inputs - Balanced MIC level XLR inputs.

8. Phantom Power - The CAM2 provides power for electret condenser microphones.The Phantom ON/OFF switch

controls the applications of DC voltage to each MIC input.

4