MGC FOM-2000-UM Bedienungsanleitung

Installation and Operation Manual

Single-Mode or Multi-Mode Fiber Module

LT-6907 Rev. 1

November 2018

FOM-2000-UM

Contents

1.0 FOM-2000-UM Single-Mode or Multi-Mode Fiber Module 4

1.1 Important Application Information .................................................................................. 4

1.2 System Components ...................................................................................................... 4

2.0 Connections, LEDs, and Jumpers 5

2.1 Connections for Optical Modules ................................................................................... 5

2.2 Jumpers ......................................................................................................................... 5

2.3 LEDs .............................................................................................................................. 5

3.0 Installation 6

3.1 Installation of Optical Modules ....................................................................................... 6

3.2 Installation of Fiber Optic Cables ................................................................................... 8

4.0 Wiring 9

4.1 Wire from L1 to L2 ......................................................................................................... 9

4.2 Class A (Style 7) ............................................................................................................ 9

4.3 Class B (Style 4) ............................................................................................................ 10

4.4 Mixed Wiring (Fiber and Copper) ................................................................................... 10

4.5 Mixed Fiber Types ......................................................................................................... 11

5.0 Specifications 12

5.1 Single-Mode ................................................................................................................... 12

5.2 Multi-Mode ..................................................................................................................... 12

1.0 FOM-2000-UM Single-Mode or Multi-

Mode Fiber Module

Add the FOM-2000-UM to the FNC-2000 network interface controller to allow the use of

single-mode or multi-mode fibers in a FleX-Net™ or MMX™ network. Plug-in optical modules

allow for cost-effective network configurations made of fiber only or a mix of wires, single-

mode fibers and multi-mode fibers.

The FOM-2000-UM is compatible with LC Duplex terminated fiber pairs or patch cords.

Installation in a FleX-Net™ or MMX™ network requires FNC-2000 network interface

controllers but no system configuration change or special firmware.

1.1 Important Application Information

See section 5 on page 12 for specifications, including maximum lengths.

Published fiber attenuation figures do not include losses due to fiber splices, connectors, or

patch cords. Never mix fiber types in the same link. Patch cords should be of the same type as

the fibers. Match optical modules to fiber types.

When the job specifications require the use of a pre-existing link, the provider should certify in

advance that the attenuation is within the optical budget specified in section 5 on page 12.

Measurements should be done with the link fitted with the patch cords and connectors that will

be used for the fire alarm system. For new links, the fiber contractor should be consulted to

insure he can meet the budget with the complete link.

1.2 System Components

Picture Model Description

FOM-2000-UM

The FOM-2000-UM allows for single-

mode or multi-mode fiber optic

communication on a FleX-Net™ or

MMX™ network.

FOM-CONN-SM Fiber Optic Module Connector -

Single Mode (pack of 2)

FOM-CONN-MM Fiber Optic Module Connector - Multi

Mode (pack of 2)

FNC-2000

The FNC-2000 Fire Network

Controller board provides network

capability for the FleX-Net™ or

MMX™ network. The FOM-2000-UM

is connected to the FNC-2000.

2.0 Connections, LEDs, and Jumpers

Figure 1 FOM-2000-UM connections, LEDs, and jumpers

2.1 Connections for Optical Modules

There are 2 bays for optical modules. L1 corresponds to Side A in the FleX-Net™ or MMX™

network. L2 corresponds to Side B.

2.2 Jumpers

JW1 must be on (closed) if an optical module is installed in L1. JW2 must be on (closed) if an

optical module is installed in L2.

If there is no optical module in L1, remove the jumper from JW1. If there is no optical module

in L2, remove the jumper from JW2.

2.3 LEDs

LEDS I1 and I2 turn on if data is received on ports L1 and L2 respectively.

RX TX RX TX

Side B Side A

Connect to P10 on the FNC-2000

Bay for optical module Bay for optical module

JW1

JW2

I2 I1

3.0 Installation

3.1 Installation of Optical Modules

To install an optical module

Figure 2 Optical module lever and end cap

1. Insert the module into one of the metal bays on the FOM-2000-UM.

The lever must be closed as shown in Figure 3.

The module should slide in easily.

Figure 3 Optical module in FOM-2000-UM

Attention: Fiber components are very sensitive to dust or other contaminants.

Optical modules and patch cords are fitted with end caps to protect

them. Unless otherwise stated, leave caps on until the fiber components

are connected. Once removed, the caps should be stored in a clean bag

with a zip-lock or equivalent sealed opening and left in the fire alarm

control panel.

The FOM-2000-UM and the plug-in optical modules contain static

sensitive components. Wear a grounded anti-static wrist strap or touch

the metal enclosure of the fire panel before handling the boards.

Remove power from the fire alarm system before installing the FOM-

2000-UM.

Note: Leave the lever closed (up) and the end cap on when you insert the optical

module. The lever locks the module in place, and the end cap protects the

electronics from dust.

End cap

Lever

Installation

2. When the module is all way in, push delicately on the front until it does not move further.

You will feel a click when the module is in place.

Figure 4 Optical module in FOM-2000-UM

3. To protect the module from dust, leave the end cap on until the fiber cable is connected

to the board.

Figure 5 Optical module in FOM-2000-UM with end cap

To remove an optical module

1. Remove the end cap.

2. Pull the lever down to unlock the module.

3. Pull the module out of the bay.

Figure 6 Remove an optical module from FOM-2000-UM

Installation

3.2 Installation of Fiber Optic Cables

1. Disconnect AC and batteries from the fire alarm system.

2. Install the supplied spacers on the two bottom mounting holes of the FNC-2000 network

controller.

3. Connect the FOM-2000-UM to connector P10 on the FNC-2000.

4. Install the FOM-2000-UM on the spacers with the optical module bays facing out as

shown in Figure 7.

5. Remove the protective cap from the optical module.

6. Insert the fiber LC connector into the module with the locking lever of the LC connector

on top.

7. Push until the locking mechanism clicks.

8. Power the system.

Figure 7 Connecting a fiber cable to FOM-2000-UM

To remove the fiber cable

1. Disconnect AC and batteries from the fire alarm system.

2. Press on the lever on the LC connector and then pull out the fiber connector.

If the optical module is dislodged in the process, follow the steps in section 3.1 on

page 6 to put it back in place.

Attention: Fiber components are very sensitive to dust or other contaminants.

Optical modules and patch cords are fitted with end caps to protect

them. Unless otherwise stated, leave caps on until the fiber components

are connected. Once removed, the caps should be stored in a clean bag

with a zip-lock or equivalent sealed opening and left in the fire alarm

control panel.

The FOM-2000-UM and the plug-in optical modules contain static

sensitive components. Wear a grounded anti-static wrist strap or touch

the metal enclosure of the fire panel before handling the boards.

Remove power from the fire alarm system before installing the FOM-

2000-UM.

4.0 Wiring

4.1 Wire from L1 to L2

A maximum of 63 nodes can be connected.

Always connect L1 to L2 on the next node, and always connect TX to RX on the next node, as

shown in Figure 8.

L1 corresponds to Side A in the FleX-Net™ or MMX™ network. L2 corresponds to Side B.

Figure 8 Wiring detail

4.2 Class A (Style 7)

For class A networks, connect L1 to L2 and L2 to L1 as shown in Figure 9. The system

configuration must specify a class A network.

Figure 9 Three nodes system with class A (style 7) network

Attention: Do not connect L1 to L1, or L2 to L2. If you do, the network might not

function correctly.

TX RX TX RX

To L2 on next nodeTo L1 on next node

2 bers (TX, RX)

2 bers (TX, RX) 2 bers (TX, RX)

Node 1

Node 2 Node 3

BABA

Wiring

Figure 9 shows a typical class A network. All optical modules are installed and all jumpers are

on. Node 1 has the lowest address and is the loop master for supervision purposes. All LEDs

should be on except I1 on node 2. This is because the L2 side on node 1 will transmit data

only if the loop is broken elsewhere.

4.3 Class B (Style 4)

For class B networks, the two ends of the network need only one optical module. Use either

bay L1 or L2 in this case. Remove the jumper corresponding to the empty module bay (JW1

for L1 or JW2 for L2). Set the system configuration to class B (Style 7 (Class A) network

unchecked).

Figure 10 shows a typical class B (style 4) network.

Figure 10 Three nodes system with class B (style 4) network

4.4 Mixed Wiring (Fiber and Copper)

When both copper cables and fibers are used in a system, use the following connections:

• Use the same L1 to L2 and L2 to L1 connection as described in section 4.1 on page 9.

• On nodes where the fiber is connected to L1, connect the copper cable to line B on the

FNC-2000 network card. Connect the copper cable to line A of the next node.

• On nodes where the fiber is connected to L2, connect the copper cable to line A of the

FNC-2000 network card. Connect the copper cable to line B of the next node.

• If this connection scheme is not followed, the network communication may become

unstable. See Figure 11.

• On nodes with mixed connections, only one optical module is used. Remove the jumper

corresponding to the unused bay on the FOM-2000-UM.

• See LT-6014, the FNC-2000 Installation Instructions, for more information on installing

and wiring the FNC-2000.

Node 1

Node 2 Node 3

2 bers (TX, RX)

BABA

JW2 open

JW1 open

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