Siemens DFM-BRK Fiber Optic Interface and Bracket User manual

Brand: Siemens

Model: DFM-BRK Fiber Optic Interface and Bracket

Type: User manual

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P/N 315-033779-6

INTRODUCTION The Model DFM-BRK from Siemens Industry, Inc.,

provides a fiber optic interface for the FireFinder XLS

digital audio network (DNET) which interconnects the

DAC-NET modules. The DFM-BRK can be connected

either Style 4 or Style 7 and utilizes the Telebyte model

DFM fiber optic converter. The DFM uses 62.5/125 um

fiber at distances up to 2KM. Standard ST connectors

are provided for connection of the optical fiber.

The DFM-BRK mounts in the rear of the XLS CAB-1/-2/-3

enclosure and occupies one module space.

INSTALLATION

Remove all system power before installation, first battery then AC. (To power up,

connect the AC first, then the battery.)

Each DFM-BRK requires at least one DFM converter. Required DFM may be ordered

under P/N 500-634910. Check the wiring section below and determine the quantity

and location of the DFMs for each DFM-BRK in the system.

1. Attach one of the DB-25 cables, P/N 555-134899, supplied with the

DFM-BRK to each DFM. Secure the DB-25 connector using the screws

which are captive on the DFM.

2. Place the DFMs on the DFM-BRK with the ST connectors facing the bottom

of the DFM-BRK. Be sure to observe the locations of the DFMs for the first

and last DAC-NETs in a Style 4 network (see Figure 2). These two locations

use only one DFM and their location on the DFM-BRK is critical to proper

DNET operation.

Fiber Optic Interface and Bracket For DNET

Installation Instructions

Model DFM / DFM-BRK

Figure 1

DFM-BRK Fiber Optic

Interface Bracket For

DNET

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Siemens Industry, Inc.

Building Technologies Division

P/N 315-033779-62

3. Place the DFM hold-down bracket over the DFMs (see Figure 1) and secure

in place using the two screws and nuts provided in the DFM-BRK hardware

kit.

4. Plug the 6 position connector on the end of the DB-25 cable into the

corresponding receptacle on the DFM-BRK.

5. Mount the DFM-BRK in the back of the enclosure with the four screws

from the hardware kit.

6. Wire between the DFM-BRK TB1 and the DAC-NET (see Figure 2).

7. Connect 24V from TB4 on the PSC-12 to TB2 on the DFM-BRK, be sure to

observe the correct polarity (see Figure 3).

8. Connect the fiber optic cables to the DFMs. The transmit (T) output on each

DFM must go to the receive (R) input on its partner DFM for proper opera-

tion.

9. Apply power. If the Power LED on the DFM-BRK is not lit, check the polarity

of the 24V input on TB2.

10. Once all DFM-BRKs are installed, check the DNET for errors. Refer to the

DNET fault LEDs on the DAC-NETs. Once all DNET fault LEDs are clear the

DNET is properly connected.

ELECTRICAL RATINGS

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FIBER RATINGS

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Siemens Industry, Inc.

Building Technologies Division

P/N 315-033779-63

91011 13 1512 14 16

ONE SLOT OF CC-5 / CC-2

FIRST DAC-NET

DFM-BRK

END MIDDLE END

DO NOT USERESISTOR 3.3K

P/N 140-034721 (US/CA)

DFM

91011 13 1512 14 16

ONE SLOT OF CC-5 / CC-2

DFM

LAST DAC-NET

DFM-BRK

DO NOT USE

RESISTOR 3.3K

P/N 140-034721 (US/CA)

91011 13 1512 14 16

ONE SLOT OF CC-5 / CC-2

OMIT FOR STYLE 4

DFM

MIDDLE DAC-NET

DFM-BRK

DO NOT USE

RESISTOR 3.3K

P/N 140-034721 (US/CA)

Figure 2

DNET Over Fiber Style 7 / Style 4

NOTES:

1. All wire and fiber connections supervised.

2. All wire connections power limited.

3. Maximum fiber length 2km.

4. Refer to DAC-NET Installation Instructions, P/N 315-035100.

5. For Style 4 (DCLB) two DFMs are required on all DFM-BRKs located in the middle of the network. Only one DFM is required at each end.

6. For Style 7 (DCLC) two DFMs are required on every DFM-BRK regardless of the location.

7. In Canada, ULC S524 requires that all interconnecting data communications links for networks be wired DCLC (style 7) except for

dedicated network communication to annunciators.

firealarmresources.com

Siemens Industry, Inc.

Building Technologies Division

Florham Park, NJ

Siemens Canada, Ltd.

1577 North Service Road East

Oakville, Ontario

L6H 0H6 Canada

P/N 315-033779-6

Figure 3

DFM-BRK Input Power Wiring

DFM

POWER

TO PSC-12 TB4*

TO NEXT MODULE

*USE 12-14 AWG

TB2

1324

DFM

DFM-BRK

TB1

13572468

Document ID A6V10239120

Cyber security disclaimer

Siemens products and solutions provide security functions to ensure the secure operation of building comfort,

fire safety, security management and physical security systems. The security functions on these products and

solutions are important components of a comprehensive security concept.

It is, however, necessary to implement and maintain a comprehensive, state-of-the-art security concept that is

customized to individual security needs. Such a security concept may result in additional site-specific preventive

action to ensure that the building comfort, fire safety, security management or physical security system for your

site are operated in a secure manner. These measures may include, but are not limited to, separating networks,

physically protecting system components, user awareness programs, defense in depth, etc.

For additional information on building technology security and our offerings, contact your Siemens sales or

project department. We strongly recommend customers to follow our security advisories, which provide infor-

mation on the latest security threats, patches and other mitigation measures.

http://www.siemens.com/cert/en/cert-security-advisories.htm

firealarmresources.com

Siemens DFM-BRK Fiber Optic Interface and Bracket User manual

Siemens DFM-BRK Fiber Optic Interface and Bracket User manual

Siemens DFM-BRK Fiber Optic Interface and Bracket User manual

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