FibroLAN FEM4 User and Installation Manual

Brand: FibroLAN

Model: FEM4

Category: Network switches

Type: User and Installation Manual

FEM/FEM4

Advanced FE/E1

Fiber Converters

User and Installation Guide

Version: 1.6

FibroLAN Ltd.

6 Hayezira St., P.O. Box 544 Yokneam-Illit, 20692 ISRAEL

Tel: 972-4-9591717 Fax: 972-4-9591718

e-mail: [email protected] web site: www.fibrolan.com

Advanced FE/E1 Fiber Converters

FEDERAL COMMUNICATIONS COMMISSION

AND

CANADIAN DEPARTMENT OF COMMUNICATIONS

RADIO FREQUENCY INTERFERENCE STATEMENTS

This equipment generates, uses, and can radiate radio frequency energy and if

not installed and used properly, that is, in strict accordance with the

manufacturer’s instructions, may cause interference to radio communication. It

has been tested and found to comply with the limits for a Class A computing

device in accordance with the specifications in Subpart B of Part 15 of FCC

rules, which are designed to provide reasonable protection against such

interference when the equipment is operated in a commercial environment.

Operation of this equipment in a residential area is likely to cause interference,

in which case the user at his own expense will be required to take whatever

measures may be necessary to correct the interference.

Changes or modifications not expressly approved by the party responsible for

compliance could void the user’s authority to operate the equipment.

This digital apparatus does not exceed the Class A limits for radio noise

emission from digital apparatus set out in the Radio Interference Regulation of

the Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par le ministère des Communications du Canada.

CE Mark

The CE mark symbolizes compliance with the European Community

required technical standards.

The product herewith complies with the requirements of the EMC Directive

89/336/EEC, the Low Voltage Directive 73/23/EEC and the R&TTE

Directive 99/5/EC.

The product was tested in a typical configuration.

Levy Malkiely

Manager Quality

Advanced FE/E1 Fiber Converters

Normas Oficiales Mexicanas (NOM)

Electrical Safety Statement

INSTRUCCIONES DE SEGURIDAD

1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea

operado.

2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.

3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño, lavabo,

sótano mojado o cerca de una alberca, etc.

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el

fabricante.

7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las

instrucciones de operación. Todo otro servicio deberá ser referido a personal de servicio calificado.

9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del

aparato eléctrico sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se

debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de

calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de

operación, o como se indique en el aparato.

12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.

13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por

objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde

salen del aparato.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de

tiempo.

17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u

orificios de ventilación.

18. Servicio por personal calificado deberá ser provisto cuando:

A: El cable de poder o el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o

E: El aparato ha sido tirado o su cubierta ha sido dañada.

Advanced FE/E1 Fiber Converters

List of contents

Overview page 5

Planning your network with FEM page 6

Content of the shipping container page 10

Product general description page 10

Features Summary page 11

Front Panel page 13

Far End Fault Feature page 14

Link Loss on E1 port page 15

Installation procedures page 16

Power connection page 16

F/O connection page 18

F/O port specifications page 19

TP cable connection page 19

DIP switches setup page 20

Typical Networks page 21

Troubleshooting page 22

Specifications page 24

Warranty Limitation page 26

Thank you for purchasing the FEM or /FEM4

quality local Traffic Aggregator from FibroLAN.

We hope that this guide will help you to obtain

the best results from the device and to

minimize the installation time.

If you still need help installing or troubleshooting the FEM/FEM4 after reading the

detailed information in this guide, please visit our web site, contact your reseller, or call

FibroLAN directly. (Support @fibrolan.com)

Note: unless where indicated otherwise, in this guide FEM applies to FEM/SMR7,

FEM/SMR, FEM/SM, FEM/SM/L, FEM/SM/L2, FEM/SM/L3, FEM/SM/LX, to

FEM/SMRF13 and FEM/SMRF15, and similar FEM4 models

Advanced FE/E1 Fiber Converters

1 – Overview

The FEM/FEM4 converter from FibroLAN is an ideal solution for extending your

2.045Mbps E1 copper based PBX, switch/router or Multiplexer over a variety of MM or

SM fiber optic interface links

The FEM device includes 4 Fast Ethernet channels and 1 E1 channel across a single

fiber link. The FEM4 models include 4 E1 ports.

Thus the main advantage of this device is the provided additional Fast Ethernet

connectivity, allowing the user to connect its IP traffic with E1 data across the same

F/O link.

The FEM/FEM4 unit has been designed to be deployed in pairs so that at each end of

the fiber link there is an FEM device.

The FEM/FEM4 unit multiplexes Fast Ethernet data and E1 data over the fiber trunk;

however, the active E1 channel reduces the Ethernet data bandwidth by 2Mbps.

AMI or HDB3 bipolar line code can be selected on the E1 copper interface.

The E1 port has a DS1 interface.

The FEM/FEM4 encapsulates E1 data into fast Ethernet frames that are transmitted

over the fiber link. These E1 frames are given the highest priority; they are transmitted

as soon as the transmission of an Ethernet frame is completed. On the receive side,

these frames are extracted from the Ethernet data flow and converted into timed E1

signals.

A built-in buffer stores incoming Ethernet frames when E1 frames are transmitted. Full

100Mbps data bandwidth is restored when no E1 signals are received.

The Ethernet ports can operate in two selectable user modes:

LAN mode: as a local switch with a fiber link interface

Aggregation mode: each Ethernet port forms with the F/O link a separate traffic path

to provide a physical level of security and separation between the users and to allow

traffic only between each user and the F/O link (traffic between users is blocked)

The LAN/Aggregation selection is performed by means of DIP switch S10

The FEM/FEM4 is available with a variety of multi-mode and single mode fiber

interfaces (distances ranging up to 150km) as well as single-fiber-strand (full bi-

directional traffic) models.

The FEM/FEM4 is standard “half-rack” size for economical installation in both rack-

mount and desktop modes. It is equipped with a reliable internal switching power

supply for extended MTBF. The optional DC power supply facilitates deployment in

Telco environments.

Advanced FE/E1 Fiber Converters

2 – Planning your network with FEM/FEM4

This section will guide you through network planning in order to obtain maximum

benefit - in terms of performance and functionality from the FEM device. Typical

network architectures are shown in the following drawings (which are also applicable to

the FEM4 models)

A. Basic Configurations

1.PBX Configuration

2. Data Network Application

Advanced FE/E1 Fiber Converters

3. Voice and Data Network Configuration

The basic building blocks of a E1 network are the CSU/DSU, Multiplexer and a

Switch/Router.

The CSU/DSU (channel service unit/data service unit) is the actual connection point

for the E1 wires. It provides line diagnostics and keep-alive functions for the line.

The Multiplexer provides the network to direct multiple channels of voice or data onto a

E1 line. Many Multiplexers have built-in CSU/DSU units for direct connection to the E1

lines

The Switch/Router provides the interface, which permits internal servers and networks

to deploy the E1 line as an interconnection or network extension.

Typically E1 media conversion is deployed in two types of network applications:

1. Private network: where the customer operates all of the E1 equipment (example:

between two buildings interconnected by means of E1 media converters) for

Data Network applications

2. E1 Voice and Data Network Applications

Advanced FE/E1 Fiber Converters

B. PBX Voice and Data configuration

Advanced FE/E1 Fiber Converters

C. E1, Voice and Data Network Topology

The installation of fiber throughout the network, from the provider to the subscriber

premises, is the only future proof infrastructure design.

The fiber can reach a variety of customer premises, such businesses, schools,

hospitals and other institutions.

Advanced FE/E1 Fiber Converters

3 – Content of the shipment

The contents of the FEM/FEM4 shipping container are:

• One converter FEM or FEM4 unit. (AC or DC powered unit)

• One AC power cord (excluding shipment to certain countries)

• Power cords for DC (-48V) models are NOT supplied

(FibroLAN DC Power Supply cable, 2m, CBPS-DC48V, part # B151)

• Four plastic “ feet “

• User and Installation Guide manual or Quick Installation Guide

4 – Product General Description

The FEM/FEM4 is offered in the following pre-configured versions as described

below:

FEM Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, multi-

mode 1310nm, 2km, not managed

FEM /SMR7 Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 7km, not managed

FEM /SMR Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 15km, not managed

FEM /SM Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 25km, not managed

FEM /SM/L Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 40km, not managed

FEM /SM/L2 Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 70km, not managed

FEM /SM/L3 Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1550nm, DFB, 100km, not managed

FEM /SM/LX Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1550nm, DFB, 150km, not managed

FEM /SMRF13 Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, simplex SC, single-

mode single-fiber-strand, 1310nmTx-1550nmRx, 20km, not managed

FEM /SMRF15 Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, simplex SC, single-

mode single-fiber-strand, 1550nmTx-1310nmRx, 20km, not managed

FEM4 Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, multi-

mode 1310nm, 2km, not managed

FEM4 /SMR7 Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 7km, not managed

FEM 4/SMR Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 15km, not managed

FEM4 /SM Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 25km, not managed

FEM4 /SM/L Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 40km, not managed

FEM4 /SM/L2 Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1310nm, 70km, not managed

FEM4 /SM/L3 Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1550nm, DFB, 100km, not managed

FEM4 /SM/LX Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, duplex SC, single-

mode 1550nm, DFB, 150km, not managed

FEM 4/SMRF13 Fiber optic E1 modem, 4 E1 port 100ohm plus 4 ports 10/100TX, simplex SC, single-

mode single-fiber-strand, 1310nmTx-1550nmRx, 20km, not managed

FEM 4/SMRF15 Fiber optic E1 modem, 1 E1 port 100ohm plus 4 ports 10/100TX, simplexSC, single-

mode single-fiber-strand, 1550nmTx-1310nmRx, 20km, not managed

Advanced FE/E1 Fiber Converters

Features Summary

• 10Base-T, 100Base-TX and 100Base-FX modes of operation

•

E1 tunneled over FE – extends life of traditional WANs

• 1 or 4 x RJ45 copper E1 port

• User selectable E1 encoding (HDB3/AMI) via DIP switch S3

• Supports FEF feature (Far-End-Fault) to test F/O Link integrity

• Indicators for Link, Activity (Tx, Rx), FDX, 100M, Power status, LAN or

Aggregator mode of operation,

• E1 port LEDs: Local, Remote and LOS (Loss of signal) FEM models

FEM4 LEDs: LOS and Signal

• Hardware based 10/100, Full/Half, Auto-Negotiation and MDI/MDI-X Auto-

Cross feature.

• Wire speed reception and transmission

• Supports 1K Mac addresses

• Automatic address learning and address aging (aging period is 300s)

• Frame length range: 64 ÷ 1916 bytes max.

• FDX Flow Control (IEEE 802.3x) and HDX back pressure Flow Control

• Optional DC Power Supply for Telco environments

• Desktop, shelf or wall mount installation

• ETR: Extended Temperature Range (-10°÷ +70°C) for indoors-industrial

environment installation: optional for all FEM models.

• Local Loop-back on E1 port to test the TX and RX logic (DIP Switch#1)

• Remote Loop-back on E1 link to test the E1 line (DIP Switch#2)

• AIS (Alarm Indication Signal) on LOS (Loss of Signal)

• Various FEM/FEM4 models to cover distances up to 150Km

Advanced FE/E1 Fiber Converters

General Description

All FEM/FEM4 models have identical functionality and performance. Therefore, any

description and features of one model refers to all other types.

The FEM/FEM4 is available with a variety of multi-mode and single-mode interfaces

with distance ranging from 2km to 150km.

It converts 100Base-FX signals received on its F/O interface in 10/100Base-TX signals

and distributes them to 4 copper (shielded RJ-45) ports. Each of these ports is

buffered; furthermore, in Aggregation mode (DIP switch S10 in down position) 4

separate groups are formed each including one Ethernet copper port and the common

F/O port, providing the users with basic security (no connection between the users).

AMI or HDB3 bipolar line code support on the E1 copper interface. (via DIP switch S3)

The Ethernet copper ports are auto-negotiating and will automatically adapt

themselves to the capacity of the users for highest performance (will negotiate 10/100

and FDX/HDX). Nevertheless, in some cases it may be necessary to force certain

operating mode

For this purpose, copper port 1 may be (individually) forced to the following

combinations: 10/FDX, 10/HDX, 100FDX or 100/HDX. While the TP ports 2, 3,and 4

operate in auto-negotiation, this port might be set via the front panel DIP switches S7

S8 and S9 to one of the above operation modes (refer to section 11)

The F/O port supports 100Base-FX transmission, set to FDX (Full Duplex) mode.

The F/O port will always operate in FDX even when the TP port operates at HDX.

Front panel diagnostic LEDs provide information on the operation mode of every port.

The device is housed in a compact and rugged metal case, providing strong free –air-

cooling for extended stable operation and reliability.

The FEM/FEM4 is packaged in a rugged “half rack” enclosure allowing elegant and

safe deployment in a variety of environments: desktop, 2 units on a 19” rack-shelf or

within a standard “half 19” rack (optional brackets required).

The FEM/FEM4 is equipped with a single internal power supply (100 - 240V universal

input), or an optional -48 VDC power supply (PS48) highly overrated to increase the

system’s MTBF. A front panel LED indicates the power status.

The FEM/FEM4 supports the Far End Fault (FEF) feature.

Far End Fault occurs when the signal detection is logically false from the receive

(Incoming path) fiber port. When the FEM/FEM4 detects a F/O Link Loss condition, the

unit will automatically send a Far End Fault signal to the remote device (on it outgoing

path). The remote device should support the same FEF feature and it will

Indicate a Link Loss as well. (Refer to section 6 for more details).

The Alarm Indication Signal (AIS) consists of an unframed all-ones signal

transmitted to maintain transmission continuity in case of LOS (loss of data)

occurrence.

The FEM/FEM4 device features user-selectable E1 port Local and Remote Loop-Back

monitoring for diagnostics purposes (enabled/disabled by DIP switches S1 and S2).

Diagnostic LEDs ease installation and troubleshooting (see “Front Panel” section)

Advanced FE/E1 Fiber Converters

5 – Front Panel (Parts Identification)

1.Power ON LED: (Power On/Off green LED indicator)

2.LAN LED: lit (amber) implies (DIP Switch#10 UP): LAN (switch) mode of operation

of the TP ports. LED OFF (DIP Switch#10 Down): Aggregator mode:

each Ethernet port forms a separate traffic path with the F/O port

Note: this LED is not present in the FEM4 models

3.Duplex SC fiber optic connector: (left /Tx & right / Rx)

The port is configured by default to operate at 100Mb Full Duplex.

4. Link Partner LED: (green) lit implies that a link has been established with the

remote attached device

5. F/O Link/Activity LED (green): constant lit: F/O Link present. Blinking implies

Activity (transmits or receives data).

6. Mode Setup: Array of 10 DIP switches (see DIP switches setting – section 11)

7. RJ45 – Ethernet ports 1 to 4 connectors

8. Link / Activity: LED (green, for each TP port) constant lit implies TP link present:

When blinking implies data activity (transmits or receives mode).

9. FDX LED (green): Full Duplex indicator for ports 1-4: lit when FDX detected

10.100M LED (amber): TP ports 100M: lit when 100Mbps detected or forced (TP port

1 via DIP switch S9)

11. E1 port: RJ-45, 120ohm, up to ~ 2Km

12. LED LOS (Loss of signal): lit red when a signal is not present at the local E1

port

13. LED REMOTE: lit green when a signal is present at the E1 port of the remote

FEM attached device (not present in FEM4 models)

14. LED LOCAL: lit green when a signal is present at the local E1 port

(not present in FEM4 models)

Each E1 port in FEM4 devices includes two LEDs:

LOS (red) = Loss of signal

Signal (green) = a signal is present at the local related E1 port

Advanced FE/E1 Fiber Converters

6 – 100Base-FX Far End Fault (FEF feature)

Usually a “LINK” indication is related to the incoming fiber only: F/O Link ON shows

that the path created by the remote transmitter, local receiver and the fiber connecting

them is operational. However if there is a fault in the other – outgoing - path (created

by the local transmitter, remote receiver and the fiber connecting them) – the indication

for such fault can be seen on the remote device only.

The FEF implemented in the FEM/FEM4 devices close this gap: if there is a fault in the

incoming receive path of the lower FEM/FEM4 (see drawing below), then the F/O

Link/Act LED will go OFF on both FEM/FEM4 devices. In this way we avoid the

possibility of having a FX Link ON indication at one end, while, in reality one of the F/O

data path is disrupted. The following drawing depicts the FEF functionality.

The FEF Feature is always enabled and functional in FEM/FEM4 devices

Advanced FE/E1 Fiber Converters

7 – Link Loss indications on E1 ports

1. Link loss at the copper input E1 port at the remote FEM device causes the

following events:

a. the Local green LED goes off (2)

b. the LOS LED (red) lit (3)

c. a failure indication signal is sent to the local FEM unit

2. The failure signal causes the Remote LED at the local FEM unit to be off (4)

AI (Alarm Indication Signal) is transmitted (5) to the Local Device which is

notified and alerted that the E1 path is malfunctioning.

Advanced FE/E1 Fiber Converters

8 – Installation

The device is intended for use with indoors power lines only

The installation procedures are applicable to all FEM/FEM4 models including the

DC powered versions.

For wall mount installation

Two suitable holes on the back of the FEM/FEM4 permit wall mount Installation.

The two holes are 188mm apart

Use two suitable screws having heads diameter less than 8mm.

For Desktop use: Affix the supplied plastic “feet” (after peeling off the adhesive

protecting sheet) to the bottom of the devices, with each “foot” approximately 1 cm

from each edge.

Place the device horizontally on a hard, clean surface (desk, shelf, etc.), leaving free

space around it for natural ventilation. Avoid putting the device on other active, heat

generating equipment and avoid putting such devices on the FEM/FEM4.

19” Rack installation

You may deploy the optional FibroLAN RM2 (# B160) 19” rack shelf for installation of

up to two FEM devices.

Use the RM2, install it in the rack and place one or two FEM side by side on the shelf.

Make sure to leave a gap of at least 2-3cm above the unit.

9 – Power Connection

CAUTION: When connecting a device to an AC (DC) power

outlet, always first connect the cord to the device, and ensure

that it is securely fastened. Only afterward connect the cord to

the wall outlet. Make sure to use grounded (3 way) outlets (in

case of AC models).

For each country FibroLAN (or FibroLAN’s distributor) provide with the

product an appropriate power supply cord which is safety approved in

accordance with related country’s National Electric Code

FEM/FEM4 AC connection

Connect to AC line socket at the rear of the FEM/FEM4, using the included power cord.

The device will accept and automatically switch between any line voltage from 100 to

240 VAC, 50-60 Hz.

There is no ON/OFF switch on the device. When the power is connected to the device,

the device is ON. The POWER LED on the front panel being illuminated will indicate

this state

Advanced FE/E1 Fiber Converters

FEM/FEM4 Rear panel- AC Inlet

FEM/FEM4 with 48 VDC Power Supply ( PS48 )

FEM/FEM4 Rear panel- DC Inlet

Proceed as above using a suitable DC supply cable. Verify that the DC-Mains

provide a 10Amp DC circuit breaker. Ensure that the polarity of the cable complies

with the polarity of the DC receptacle on the device as depicted above. If you use the

FibroLAN CBPS-48V cable (B151), insert all-way-in the D-type DC connector and

secure the D-Shell to the DC Inlet of the FEM/FEM4 device using the two captive

screws. Connect the cable 3 leads to the DC Power Outlet, ensuring that the -48V

blue lead is connected to the -48V of the DC Power Outlet, the red/brown OV lead to

the OV of the DC Power Outlet, and the ground lead (yellow/green) to the ground of

the DC Power Outlet. There is no ON/OFF switch on the device. When the power is

connected to the device, the device is ON. The POWER LED being illuminated will

indicate this.

NEVER OPEN THE DEVICE WHEN IT IS CONNECTED TO POWER LINES!

Advanced FE/E1 Fiber Converters

10 – Fiber Optic Connection

The FEM is equipped with 1 pair of SC-type connector or single SC connector for SFS

(Single –Fiber – Strand) model.

Do not remove the protective covers on the fiber connectors until you are ready to

connect the fiber optic cables. Power should be connected before attaching the fiber

optic cables. When dealing with fiber optic cables, it is essential to ensure that the TX

at one end of the link is connected to the RX at the other end of the link.

Some duplex fiber optic cables are color coded to help monitor the direction of data

transmission. If the fibers are not coded, special attention must be paid to ensure a

proper connection.

Laser Warning

CAUTION

Radiation emitted from a fiber optic connector may be hazardous

to human vision. Therefore, the following rules must be strictly

observed

All Single-mode (SM) models are CLASS I LASER PRODUCT that

may endanger your eyes and must be handled with special care

When not in use, keep the fiber optic connector closed using its

protective cover

Never stare directly into the fiber optic connector of a powered

device or into the end of a fiber connected to it.

Do not look directly into the fiber optic cables or transmitter

Laser Safety

The emissions produced by the end products described in this guide are under Class 1

emission level according to IEC 60825-1 and the FDA 21 CFR 1040.10 and 1040.1. These

products shall not be installed in an optical network handling above Class 1 level.

Advanced FE/E1 Fiber Converters

F/O port specifications

Option F/O

Port

Transmit

Minimal

Output

Power

dBm

Maximal

Output

Power

dBm

Receive

Min

Receive

Sensitivity

dBm

Maximal

Input

Power

dBm

Suggested

Distance

MM Duplex

SC,MM 1310 - 20 - 14 1310 -30 -14 0-2

SMR7 Duplex

SC, SM 1310 -20 -8 1310 -30 -3 0-7

SMR Duplex

SC, SM 1310 -16 -8 1310 -30 -3 0-15

SM Duplex

SC, SM 1310 -15 -8 1310 -33 -3 0-25

SM/L Duplex

SC, SM 1310 -11 0 1310 -33 -3 15-40

SM/L2 Duplex

SC, SM 1310 -3 2 1310 -35 -3 25-70

SML3 Duplex

SC, SM 1550DFB -4 0 1550 -36 -3 40-100

SM/LX Duplex

SC, SM 1550DFB 0 5 1550 -38 -3 70-150

SMRF13

Simplex

SC, SM

SFS

1310 -15 -7 1550 -32 -3 0-20

SMRF15

Simplex

SC, SM

SFS

1550 -15 -7 1310 -32 -3 0-20

11 – Twisted Pair Cabling connection

The FEM provides 4-shielded RJ-45 connectors to interface to the twisted pair links.

As each of the FEM RJ-45 4 ports supports: full Auto-negotiation, auto-polarity and

Auto-cross, you can simply connect any device to any port by using a standard

straight or crossed cable. If you may need to force an operation mode other than auto-

negotiation on TP port 1, this can be implemented through the front panel S9 and S10

DIP switches. Use a shielded Cable Type 5 or higher grade, up to 100m (330ft) long to

ensure proper operation at 100Mbps.

On FEM with the Auto-cross feature, each RJ45 port has the intelligence to sense the

type of cable, which has been connected to it and will automatically configure itself to

either MDI or MDI-X mode of operation.

E1 Port: RJ45, 120ohm, up to ~ 2Km (Pin Layout: 5=+TX, 4= -TX, 2=+RX, 1=-RX).

Advanced FE/E1 Fiber Converters

12 – DIP switches setup

The FEM/FEM4 is equipped with an array of 10 DIP switches marked “MODE SETUP”

that facilitate the proper setting of the device and individual ports.

Shaded areas indicate factory default setting.

Use a small tool (pen tip or a tiny flat-head screwdriver) to set the switches.

Switch

No. Function Up Position Down

Position

Comments

1 E1 port

Local Loop-Back

Enable Disable Applicable to all 4 E1 ports

in FEM4 models

2 E1 port

Remote Loop-

Back

Enable Disable Applicable to all 4 E1 ports

in FEM4 models

3 Encode

HDB3AMI

AMI B8ZS Applicable to all 4 E1 ports

in FEM4 models

4 Not in Use

5 Not in Use

6 Not in Use

7 Channel 1 port

Auto-

Negotiation

Enable Disable

8 Channel 1 port

10/100

100 10

9 Channel 1 port

FDX/HDX

FDX HDX

10 LAN/Aggregator

Selector

LAN mode Aggregator

mode

LAN mode operation;

Ethernet TP ports can talk

each other and with the F/O

port

Aggregator mode: each TP

port with the F/O port forms

a separate traffic path

DIP switch # 7 (Up position = Auto-Negotiation) override S8 and S9

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FibroLAN FEM4 User and Installation Manual

Brand: FibroLAN

Model: FEM4

Category: Network switches

Type: User and Installation Manual

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FibroLAN FEM4 User and Installation Manual

FibroLAN FEM4 User and Installation Manual

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