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IC-52B
DUAL CHANNEL
AUDIO INTERCOM AMPLIFIER
OPERATION AND INSTALLATION
MANUAL
Tech Works
TM
"Making Specialized Communication Easy"
A Division of: United Communication Technology, Inc.
22347 La Palma Ave., Suite #107, Yorba Linda, CA 92887
Direct Line: 714-694-1040 Fax: 714-694-1041 Toll Free: 1-800-813-1080
Web site www.tech4people.com
2/15
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Table of Contents
Related Manuals for Tech Works IC-52B
Summary of Contents for Tech Works IC-52B
- Page 1 IC-52B DUAL CHANNEL AUDIO INTERCOM AMPLIFIER OPERATION AND INSTALLATION MANUAL Tech Works “Making Specialized Communication Easy” A Division of: United Communication Technology, Inc. 22347 La Palma Ave., Suite #107, Yorba Linda, CA 92887 Direct Line: 714-694-1040 Fax: 714-694-1041 Toll Free: 1-800-813-1080 Web site www.tech4people.com...
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Page 2: Table Of Contents
The Setup, Adjustments section should also be read before installation. For those users who wish to do their own engineering then all sections may be useful. You may also wish to contact a Tech Works application engineer for assistance. Table of Contents Table of Contents……………………………………. -
Page 3: List Of Illustrations
Page 22 Cath-Lab Application with Doctor Music……………….. Page 23 Interview Application with Conversation Logging……… Page 24 IC-52B-DM Desk Mount…………………….…………….. Page 25 IC-52B-WM Single Wall Mount………………………….. Page 25 IC-52B-WM2 Dual Wall Mount……………..……………. Page 25 IC-52B-RM Rack Mount……………………..…………… Page 25 IC-52B-RM2 Rack Mount…………………………………... -
Page 4: Overview
Overview The IC-52B is the most versatile Audio Intercom ever built. Yet it is also the easiest to integrate into your design. Configuration Templates support every common application. Follow the Setup and you’re done. If there is not a template for your application, give us a call; we will be pleased to assist you to configure the IC-52B into your design. -
Page 5: Functional Diagram And Explanation
IC-52B Functional Diagram Each audio path or channel has its own audio control section, which provides Automatic Level Control, Amplifier Muting and other functions. These can be operationally assigned for specific applications based on placement of removable jumpers inside the unit. -
Page 6: Specifications
Specifications General: Dual Channel Universal Audio Intercom Amplifier Inputs: R.F. and static electricity protected Outputs: short circuit protected Frequency Response: 250 Hz to 10 KHz 10-Watts RMS Sine Wave output, 25 Volts (Balanced) Distortion at full voltage output < 1% T.H.D. Power Supply Required: 24 Volts DC @ 2.2 Amps for full rated output Unit is intended to use with class 2 power source (Sold Separately) 24 Volts D.C. - Page 7 PA-BUSS Output, signal pairs: Configurable with internal jumper options Power, 23 Volts, 350 Milli-Amps fold back current limited, short circuit current ~ 40MA Line Level Output, Transformer Isolated ~0dBM ALERT, indicates attention is requested Automatic Level Control: Operator and Remote Greater then 40dB Automatic Level accommodation Fast Attack, <10mS Feed Forward Control, no ‘Pumping’...
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Page 8: Mechanical Details
Mechanical and Electrical: 1U, Half Rack, 8½” X 1¾” X 6” Mounting Options: Table-Top; Under Counter; Rack Approximately 3 lbs Modular aluminum enclosure Euro-Style connectorized barrier strips SIDE VIEW FRONT VIEW DESK MOUNT TOP WALL MOUNT TOP DUAL WALL MOUNT TOP RACK MOUNT TOP 2/15 Page 8 of 26... -
Page 9: Front Panel Controls And Indicators
FRONT PANEL CONTROLS AND INDICATORS IC-52B Front View Power Indicator Green when operating normally Call Tone Level Control trimpot, sets the level of the tone from the Operator speaker associated with a ‘Call’ button closure. “OPERATOR” (Remote Microphone to Operator Speaker) -
Page 10: Rear Panel Connections
Green, flashing to Red, Normal Operation Speaker Level Control trimpot, sets the listening level from the Remote Speaker REAR PANEL CONNECTIONS IC-52B Rear View Audio I/O, Euro Style Barrier Strip Operator Microphone/Line Input, Configurable, see Specifications, and Jumper Options Operator Speaker Output... - Page 11 Control Inputs, Euro Style Barrier Strip, common sensing for Switches, or PLC Switch Common Shutoff (Lowest Priority) - Active low, momentary, or sustained, see below Disables both Operator and Remote Speakers (Overridden by “Activate”, “Push to Talk”) Power on, quiescent state, Operator Shutoff Activate - Active Low, momentary, or sustained Overrides “Shut Off”, Cancels Call Tone (Jumper Option)
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Page 12: Simplified Block Diagram
Simplified Block Diagram 2/15 Page 12 of 26... -
Page 13: Main Board Jumper Options
Jumper Options (Refer to the Block Diagram for Jumper Function) IC-52B Main Board Jumper Locations Control Functions Jumpers: Change Tone Shutoff The Call Tone is edge triggered by a Switch Closure The Call Tone is Cancelled by the a PTT Switch Closure... - Page 14 Audio Input Jumpers: Universal Microphone/Line Input both channels: This input can accommodate a wide range Microphone or Line inputs The Microphone Sensitivity is adjustable with the 16 Position Rotary Switch With ~3db/Step for a 45 dB range By using the Gain Switch, and Jumper options the total Range is -75dB to +20dB The Signal is processed with an ALC, to assure the Output never exceeds 0dBm Indicators allow the Microphone Gain to be adjusted to the optimal level Phantom Power:...
- Page 15 Audio Switching Configuration Jumpers The IC-52B has two Audio Channels, designated as Remote Microphone to Operator Speaker and Operator Microphone to Remote Speaker With all Signal Flow Jumpers in place, Half Duplex Operation is supported Half Duplex Operation, the Microphone Inputs and Speaker Outputs are sequenced: When the Operator is “Listening”:...
- Page 16 PA-BUSS Output Jumpers The PA Buss is provided for easy interface to other Tech Works PA-Buss products such as the PA-402 Music and Paging Amplifier. There are several Audio Selection Choices, which are summed. These selections determine what signals are sent to the PA-402 and when they are sent.
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Page 17: Setup, Adjustments
Initial Adjustments, each channel: There are both Input and Output Controls with associated Indicators When the Indicators are green the associated control is enabled Only attempt adjustments if the associated indicator is lighted green! Do each channel separately, Remote to Operator, then, Operator to Remote Digital Rotary Switches (3dB/Step) are used to set Reach, Microphone Gain The nominal Reach, Microphone Gain is ~6dB, or less, into limiting Reach, Microphone Gain is always setup first... - Page 18 VOX and Anti-VOX: When VOX is not used, the VOX Threshold must be set Fully CCW This disables VOX, and sets the timing for Push-to-Talk Operation Proper Speaker Microphone placement is necessary for VOX operation. The sound level from the operator speaking into the microphone should be greater than sound level at the microphone from the operator’s speaker.
- Page 19 There are two methods to adjust the Notch Filters; both entail forcing a feedback condition The one below is required if access to the jumpers is unavailable If the covers are off the IC-52B, the second method may be easier; see next page Method 1:...
- Page 20 The second mode is the distance of the microphone from a near object. This frequency is much higher near 1000Hz. The IC-52B incorporates two filters in tandem, one a low Band Filter 250Hz to 1000Hz, and the other a High band Filter 750Hz to 3000Hz.Adjust the Notch Filters one at a time.
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Page 21: Application Templates
IC-52. They are meant to allow the user to easily configure a standard system. They are also useful as a guide for those configurations that are almost standard. The IC-52 is extremely versatile; almost any design can be accommodated. If you need additional help please contact a Tech Works applications engineer. Default Jumper Settings Setup: The normal setup procedures for the intercom should be done first. -
Page 22: Ticket/Drive-Through Window Vox Application
Ticket / Drive-Through Window, VOX application: Ticket and Drive Through Windows include those applications such as the Movie Theaters, Bank Drive Through Tellers, Prison Inmate Personal Items Return, and even the local Landfill or Weigh Station. The IC-52 provides a flexible, quality communication between the customer and the service attendant. -
Page 23: Cath-Lab Application With Doctor Music
Cardio Cath Labs. The typical medical Procedure Room Intercom configuration uses the special features specifically designed into the IC-52B such as Operator Listen Always On and Procedure Room Music Mute. Tech Works microphones include indicator lamps to tell the Operator when the intercom is in the Listen mode or when the Microphone is active for both Talk and Listen The IC-52B comes with the default jumper settings set for Procedure Room operation. -
Page 24: Interview Application With Conversation Logging
Clear audio is critical to observing the interview and recording the conversation. The IC-52B includes balanced, transformer isolated, recording outputs with automatic level control for line level audio to any professional recording equipment. The typical Interview Room configuration uses the features such as Selective Recording of what was said or what was heard depending on Jumper settings. -
Page 25: Mounting Options
Wall or Under Counter Mount IC-52B-WM PROGRAM PAGE PA-402 PROGRAM AND PAGING AMPLIFIER POWER LEVEL ACTIVE LEVEL ACTIVE IC-52-WM2 Shown with an IC-52B and a companion PA-402 IC-52-RM Rack Mount Option IC-52-RM PROGRAM PAGE PA-402 PROGRAM AND PAGING AMPLIFIER POWER LEVEL ACTIVE LEVEL... -
Page 26: Accessories
Accessories CS540 WIRELESS HEADSET - When the user requires mobility, privacy, and quality the CS540 does it all in a light weight rechargeable package with an integral over the ear mounting band. The CS540 requires the HS-1 adaptor sold seperately. PRO 45 HANGING MICROPHONE - In the procedure room area such as an operating table the PRO 45 is a high quality condenser microphone with cardioid pattern for excellent signal to noise and 25’...
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