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TFX Audio Interface Module
Installation Instructions
4100-1340,
©2007- 2011 SimplexGrinnell LP. All rights reserved.
Specifications and other information shown were current as of publication and are subject to change without notice.
Simplex and the Simplex logo and AUTOCALL are trademarks of Tyco International Ltd. and its affiliates and are used under license.
579-815
Rev. C
Introduction The 4100-1340 TFX Audio Interface module converts 10 Vrms 4100U or 4100ES analog outputs
into 0.77 Vrms signals compatible with the AUTOCALL® AMP-96 audio riser. During a TFX500 or TFX-800 to 4100U or 4100ES master panel migration, the TFX Audio Interface module
provides a means to retain existing AMP-96 speaker circuits.
This publication covers the installation procedure of the TFX Audio Interface module into a
4100U or 4100ES Master control panel.
In this
Publication
This publication discusses the following topics:
Cautions
and
Warnings
READ AND SAVE THESE INSTRUCTIONS- Follow the instructions in this installation manual. These instructions must be
followed to avoid damage to this product and associated equipment. Product operation and reliability depend upon proper
installation.
DO NOT INSTALL ANY SIMPLEX® PRODUCT THAT APPEARS DAMAGED- Upon unpacking your Simplex product,
inspect the contents of the carton for shipping damage. If damage is apparent, immediately file a claim with the carrier and notify
an authorized Simplex product supplier.
ELECTRICAL HAZARD - Disconnect electrical field power when making any internal adjustments or repairs. All repairs should
be performed by a representative or authorized agent of your local Simplex product supplier.
STATIC HAZARD - Static electricity can damage components. Handle as follows:
• Ground yourself before opening or installing components.
• Prior to installation, keep components wrapped in anti-static material at all times.
EYE SAFETY HAZARD - Under certain fiber optic application conditions, the optical output of this device may exceed eye
safety limits. Do not use magnification (such as a microscope or other focusing equipment) when viewing the output of this device.
FCC RULES AND REGULATIONS – PART 15 - This equipment has been tested and found to comply with the limits for a Class A digital
device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
SYSTEM REACCEPTANCE TEST AFTER SOFTWARE CHANGES - To ensure proper system operation, this product must be tested in
accordance with NFPA-72, after any programming operation or change in site-specific software. Reacceptance testing is required after any change,
addition or deletion of system components, or after any modification, repair or adjustment to system hardware or wiring.
All components, circuits, system operations, or software functions known to be affected by a change must be 100% tested. In addition, to ensure that
other operations are not inadvertently affected, at least 10% of initiating devices that are not directly affected by the change, up to a maximum of 50
devices, must also be tested and proper system operation verified.
Topic See Page
Overview 2
Introduction to TFX Audio Interface Module 3
Installing the TFX Audio Interface Module 7
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Glossary The following terms are defined:
Overview The 4100-1340 TFX Audio Interface Module interfaces the 4100U/4100ES Analog Audio
Controller to existing AUTOCALL TFX AMP-96 amplifiers. It provides an AMP-96 compatible
audio riser by converting the 10 Vrms audio signal from the 4100U/4100ES PDI to a 0.77 Vrms
signal. It provides a transformer coupled output that is trim pot adjustable to 0 dBm +/- 6dB. (This
module is similar to the TFX Riser Driver 2 board).
Figure 1. TFX Audio Interface Module System Interconnection
Term Definition
Addressable
Devices
TFX addressable devices
PDI Power Distribution Interface
TFX Autocall TFX-500, TFX-800 series fire alarm panel
Overview
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Introduction to TFX Audio Interface Module
Physical
Specification
The card is a flat, 4"x5" form-factor module that plugs into the 4100U/4100ES power distribution
interface.
Figure 2. TFX Audio Interface Module
Input
Specifications
• 24VDC
• Supervisory or Alarm Current:
Card Power: 29mA maximum
Environmental
Specifications
• Operating Temperature: 32 to 120F (0 to 49C)
• Humidity: Up to 93% relative humidity at 90F (32C)
External
Connectors
The module has four external connectors:
• TB1 is a 3 position terminal block for audio signal field wiring. Refer to Table 1:
Continued on next page
Table 1: TB1 Connections
Pins Description
Pin 1 Riser +
Pin 2 Riser -
Pin 3 Shield
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Introduction to TFX Audio Interface Module, Continued
External
Connectors,
(continued)
• 2 is a 3 position shield jumper. Refer to Table 2 for pinout description.
• P4 is a 6 position header used to select between Audio1 +/- or Audio2 +/- riser inputs
• Default setting is Audio Riser #1, P4 positions 1-3 and 2-4.
• To select Audio Riser #2, move jumpers to P4 positions 3-5 and 4-6.
Note: Audio Riser # 1 is only available for use with TFX. Audio Riser # 2 is reserved for
future non-TFX appliacations
• R1 is an adjustable trim pot used to change the output audio by +/-6dB.
Continued on next page
Table 2: P2 Jumper Position
Position Function
1-2 24C shield connection
2-3 Earth shield connection(default)
Table 3: Trim Pot Position
Turning Function
CW
Amplify audio output
signal
CCW
Attenuate audio output
signal
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Introduction to TFX Audio Interface Module, Continued
Field Wiring Figure 3 shows fields wiring information.
Figure 3. Field Wiring
Wiring Notes
1. All wiring to be in accordance with NEC (National Electronic Code), local authorities and
applicable notes.
2. All wiring in the audio system is Power Limited.
3. Disconnect power before servicing the system.
4. All conductors must be free of grounds.
5. The Audio Riser should be terminated at the source of the Audio Riser at the Audio Riser
Interface Card.
6. Audio Riser: Twisted shielded pair, 75 ohms maximum.
7. All wiring is supervised by the Amp96
8. Ground detection: 10 Kohm, note this is detected and reported by the AMP-96/RPS424
9. Maximum circuit voltage is 0.84Vrms
10.Wire Size = 12 - 18 AWG (3.31 - 0.82 mm
2
)
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Field Wiring,
Continued
Ground Fault Detection of Audio Riser
The output of the riser driver transformer is referenced to DC common of the power supply that is
used to power the amplifier system. Because the riser is referenced to DC common, ground fault
detection of the audio riser is possible.
Only one power supply used in the system with same DC common should have ground fault
monitoring enabled. If the other power supplies are used in a system with the same DC common
wired together, their ground fault circuits should be disabled for proper ground fault detection.
Audio Level Calibration
The Audio Riser requires calibration so that the level of the audio signal at the end of the Audio
Riser is 0dBm (0.77Vrms). To achieve this, follow the following steps:
1. At the originating point of the Audio Riser, place the calibration potentiometer to midrange.
2. Make sure the 4100U/4100ES Analog Audio controller is playing the 1KHz supervision tone.
3. Ensure that the Audio Riser is properly terminated. Measure the audio.
4. The end of the Audio Riser is the last AMP-96 Amplifier connected to the riser.
• For 1-10 AMP-96 Amplifiers connected to the riser, use the 750 Ohm (P/N 976448)
termination resistor.
• For 11-20 AMP-96 Amplifiers connected to the riser, use the 4.7k Ohm (P/N 976449)
termination resistor.
• For 21-25 AMP-96 Amplifiers connected to the riser, no termination resistor is required.
5. Measure the riser signal level at the end of the riser (or riser subsection) by measuring the AC
voltage at terminals TB2-1 and TB2-2 of the AMP-96 Amplifier or at the TB1-1 and TB1-2 or
TB2-1 and TB2-2 of the CS2 Channel Select Board.
6. Adjust the RISER GAIN potentiometer R1, on the Audio Interface board so that the voltage
measured at the end of the riser is 0.77VRMS (+/- 0.07V).
Introduction to TFX Audio Interface Module, Continued
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Installing the TFX Audio Interface Module
Overview The 4100U/4100ES TFX Audio Interface module mounts on a PDI in a 4100U/4100ES expansion
bay. It can be mounted on any available block. Refer to Figure 4.
Figure 4. Mounting TFX Audio Interface Module
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579-815
Rev. C
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