Siemens FHA2054-U1 Guide

FHA2054-U1

Audio transformer kit

Mounting

Installation

A6V10590197_en--_a

Building Technologies

2016-02-26 Building Technologies Division

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Legal notice

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Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

Legal notice

Technical specifications and availability subject to change without notice.

Transmittal, reproduction, dissemination and/or editing of this document as well as

utilization of its contents and communication thereof to others without express

authorization are prohibited. Offenders will be held liable for payment of damages.

All rights created by patent grant or registration of a utility model or design patent

are reserved.

Issued by:

Siemens Industry, Inc.

Building Technologies Division

8 Fernwood Road

Florham Park, NJ 07932

Tel. +1 973-593-2600

www.sbt.siemens.com/FIS

Edition: 2016-02-26

Document ID: A6V10590197_en--_a

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Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

Table of contents

1Description..........................................................................................5

2Installation...........................................................................................6

3Preparing and installing the cable...........................................................7

4Views..................................................................................................9

5Wiring and pin assignments.................................................................10

6Recommended wiring for FHA2054......................................................12

7FCC Statement..................................................................................15

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Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

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Description

5 |

Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

1Description

The FHA2054 audio transformer kit is for a reliable ground disconnection of the

low-level audio source in booster amplifier station EBA2001. The FHA2054 audio

transformer kit is installed in booster amplifier station EBA2001 and must be

connected to 'Line in' 'X4' at the booster amplifier mainboard (100 W) EBA2004.

The FHA2054 comes with all individual parts for installation.

The kit contains a shield connection terminal block, an isolating transformer

module with connector for the low-level audio connection, a terminating resistor for

supervision and a terminal block for the wiring to the low-level input.

Properties

●Ensure solid Earth Ground connection

●Allows for terminal landing of shielded cables

●Uses 1:0.75 audio transformer with low distortion and good frequency response

●DC decoupling, impedance of 10kΩat 1kHz

●Allows DC wire supervision and ground fault detection of audio source

●Allows 1.00/1.55 Vrms operation

●Harmonic Distortion: <1 %

●Crossover distortion: <1%

You will find more information on booster amplifier mainboard (100

EBA2004-A1 in document A6V10407858, e.g. requirements for installation and

complete installation instructions.

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Installation

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Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

2Installation

Figure 1: Installing the FHA2054 audio transformer kit

1 Shield connection terminal block

2The FHA2054 audio transformer kit is mounted on the busbar

32x #4-40 pan-head Phillips screws, L ¼"

4 Busbar L=100 mm with 2x fastening tabs

5 2x threaded standoffs in back box

1. Plug the shield connection terminal block (1) onto the busbar (4) from above.

2. Screw the busbar (4) with pre-mounted audio transformer kit (2) and the shield

connection terminal block (1) with both screws (3) into the threaded standoff on

the back box (5).

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Preparing and installing the cable

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Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

3Preparing and installing the cable

Preparing the external cable

Figure 2: Stripping the external cable for FHA2054

wUse a twisted, shielded cable.

1. Cut open the insulation approximately 90 to 110 mm/3.5" to 4.3" from the end

of the cable and remove the insulation approximately 20 mm/0.8" from the

cable.

2. Strip approximately 30 mm/1.18" from the end of the cable.

3. Open the wire braid of the shielding at the end of the cable and expose the

wires.

4. Cut off the wire braid of the shielding at the end of the surround corresponding

to the 'cut shield' in the figure.

Preparing the internal cable

Figure 3: Stripping the internal cable

wUse a twisted cable with a max. length of 170 mm/6.7", shielding is not

necessary.

1. Strip approximately 30 mm/1.18" from the ends of both cables.

2. Open the wire braid of the shielding and expose the wires.

3. Cut off the wire braid of the shielding at the end of the surround corresponding

to the 'cut shield' in the figure.

30 mm /

1.18 inch 60 mm / 2.4 inch

20 mm /

0.8 inch

remove insulation

cut shield

30 mm /

1.18 inch 110 mm / 4.3 inch

cut shield cut shield

30 mm /

1.18 inch

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Preparing and installing the cable

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Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

Laying the cable and connecting the shield

Figure 4: Wiring of the FHA2054 audio transformer kit

1Busbar with FHA2054 audio transformer kit mounted

2 Exposed shielding in the shield connection terminal block

3 External twisted, shielded cable to X41

4PCB of FHA2054 audio transformer kit

5Internal twisted cable

6 Booster amplifier mainboard (100 W) EBA2004

1. Lay the external shielded cable (3) so that the exposed braid is positioned in

the shield connection terminal block (2).

2. If necessary, lay a further shielded cable through the same shield connection

terminal block.

3. Tighten the knurled screws for the shield connection terminal block to fix the

cable in place.

4. Connect the external cable (3) to the plug terminal X41, in accordance with

chapter Wiring and pin assignments [➙10].

5. Lay the internal cable (5) in accordance with the figure above.

6. Connect the internal cable (5) between X42 of the FHA2054 (4) and X4 of the

EBA2004 (6), in accordance with chapter Wiring and pin assignments [➙10].

2 3

X41

X42

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Views

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Building Technologies

A6V10590197_en

Siemens Industry, Inc.

2016

4Views

Figure 5: FHA2054 print view

Element Des. Function

Connector X41 'LINE IN', 'Low level' audio input

X42 'LINE OUT', 'Low level' audio output

to ES PCBA

printed acc.

or DMC

89 6

Label

(BOM)

32 4

3 24 1

R104

R103

X43

C108

C107

RM1

T101

V101

V102

C101

C104

C105

X44

C106

R102

F101

RM3

RM2

C102

C103

R101

L101L101

F102

X41

X42

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Wiring and pin assignments

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Building T

echnologies

A6V10590197_en

Siemens Industry, Inc.

2016

5Wiring and pin assignments

Figure 6: Wiring the plug connections of the FHA2054 audio transformer kit

*The audio line can be monitored by connecting an EOL resistor of 3.3 kΩ,

Siemens part no. C24235-A1-K14. The supervision and the appropriate EOLR

value are determined by the 'External source'.

Settings on the EBA2004

The DIP switch S1601-5 'FAULT TBL: LINE', must be set to OFF. A fault with LED

H401 is not signaled on the booster amplifier mainboard (100 W).

The following DIP switches must be configured, see DIP switch S1501/S1601,

configuration:

●S1501-5 'PRIORITY: LINE/SPEAKER'

●S1501-7 and S1501-8 'LINE INPUT LEVEL', recommended 0.75VRMS

You will find detailed information on the configuration and wiring of the EBA2004 in

document A6V10407858, Booster Amplifier Mainboard (100W) EBA2004.

H401

EOLR

IN+

IN-

EOLR

FAULT transmit

LINE IN

(S1601-5 ON)

LINE IN

Low level audio input

OUT+

OUT-

LINE OUT

Shield

EBA2004

FHA2054

LINE IN

X42

X41

EBA2001

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Table of contents

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