Nevion EDFA-B-C 17dBm User Manual

EDFA-B-C 17dBm

SDI optimized Erbium Doped Fiber Amplifier

User manual

Rev. B

Nevion

Nordre Kullerød 1
3241 Sandefjord
Norway
Tel: [phone]

nevion.com

EDFA-B-C 17dBm Rev. B

Nevion Europe

P.O. Box 1020

3204 Sandefjord, Norway
Support phone 1: [phone]
Support phone 2: [phone]

Nevion USA

1600 Emerson Avenue

Oxnard, CA 93033, USA

Toll free North America: [phone]

Outside North America: [phone]

E-mail: [e-mail]

See http://www.nevion.com/support/ for service hours for customer support globally.

Rev.

Repl.

Date

Sign

Change description

B 0 2014-05-21

OEH

Added LED chapter

0 A 2012-01-11

SHH

Initial revision.

A - 2008-02-01

Initial revision (not published)

Nevion Support

Revision history

Current revision of this document is the uppermost in the table below.

nevion.com | 2

EDFA-B-C 17dBm Rev. B

Contents

Revision history ........................................................................................................ 2

1 Product overview ................................................................................................... 4

2 Specifications ........................................................................................................ 5

2.1 Optical Characteristics .................................................................................................. 5

2.2 Power consumption ....................................................................................................... 5

2.3 Environmental conditions ................................................................ .............................. 5

3 Cautions ................................................................................................................ 6

3.1 Laser Safety ................................................................................................ .................. 6

4 Configuration ......................................................................................................... 7

4.1 Dip switch settings ........................................................................................................ 7

4.1.1 Common dip switches ................................................................................................ 7

4.1.2 Constant power mode ................................................................................................ 7

4.1.3 Constant gain mode ................................................................................................... 7

4.2 Status by LED’s ............................................................................................................. 8

4.2.1 LED status description ............................................................................................... 8

4.3 GPI ................................................................................................................................ 9

4.4 RS232 control ..............................................................................................................10

4.5 Lid operated switches...................................................................................................11

4.6 Key switch ....................................................................................................................11

5 Connections ........................................................................................................ 12

6 Operation ............................................................................................................. 13

6.1 Introduction ..................................................................................................................13

6.2 EDFA theory ................................................................................................................13

6.3 Operation modes ..........................................................................................................13

General environmental requirements for Nevion equipment .................................. 15

Product Warranty.................................................................................................... 16

Appendix A Materials declaration and recycling information .................................. 17

A.1 Materials declaration ....................................................................................................17

A.2 Recycling information ...................................................................................................17

nevion.com | 3

EDFA-B-C 17dBm Rev. B

1 Product overview

The Flashlink EDFA-B-C 17dBm is an erbium doped fiber amplifier with a special control
circuit making it better for SDI signals than normal EDFAs. It is a +17dBm booster that is
typically used at the beginning or in the middle of a link. At the receiving end of a link, a low
power / low noise preamp would typically be needed instead.

The EDFA is unidirectional by nature, but can amplify up to 40 DWDM channels on a single
fiber, at 100GHz spacing. Ideal gain flatness is achieved with input power close to the
nominal input power.

Various safety measures are implemented, like automatic shutdown if rear lid is opened to
access the fiber connectors, or manual shutdown by the use of GPI, GYDA, RS422 or

turning the safety key to the “off” position. There is also a reduced output power mode that

can be entered with the use of GPI, GYDA or RS422 control.
EDFA can also be directly controlled over RS232, bypassing the Flashlink features. The

key, lid, GPI and GYDA/RS422 still operate the shutdown and reduced output power
modes, even when using direct RS232 control.

EDFA status is monitored by use of LEDs, GPIO and RS422/GYDA.

Figure 1: EDFA block diagram

nevion.com | 4

EDFA-B-C 17dBm Rev. B

Nominal input power

-6dBm

Maximum input power

+4dBm

Minimum input power

-10dBm

Total output power

17dBm +/- 1.5dBm at Pin from -10dBm to 0dBm

Gain flatness

Max. 1.0dB at Pin=-6dBm, Pout=17dBm
Max. 5.0dB at Pin from -10dBm to 0dBm

Noise figure

Max. 6.0dB at Pin=-6dBm, Pout=17dBm

Wavelength range

Full C-band, 1529 to 1562nm

Number of DWDM ch.

Min. 40 channels at 100GHz spacing

Polarization dependant gain

Max. 0.5dB

Polarization Mode
Dispersion

Max. 0.5ps

Input/Output return loss
(pump off)

Min. 35dB

Maximum power
consumption:

<9W (+5V)

Operation temperature
range

0°C – 45°C

Operation without damage
temperature range

0°C – 55°C

2 Specifications

2.1 Optical Characteristics

2.2 Power consumption

2.3 Environmental conditions

nevion.com | 5

EDFA-B-C 17dBm Rev. B

3 Cautions

3.1 Laser Safety

This unit is capable of emitting dangerous levels of light.
DO NOT UNDER ANY CIRCUMSTANCES LOOK AT THE OUTPUT OF THE

UNIT OR FIBRE ATTACHED TO THE UNIT!
Containing a Class IIIb assembly, use the utmost case when changing

connections, and always turn the unit completely off before inspecting or
cleaning any connectors which are attached to the unit’s output.

nevion.com | 6