Nevion 3GHD-EO User Manual

3GHD-EO

3GHD-EO-2

Single/dual 3G-SDI

electrical to optical converter

User manual

Rev. E

Nevion

Nordre Kullerød 1
3241 Sandefjord
Norway
Tel: [phone]

nevion.com

3GHD-EO / 3GHD-EO-2 Rev. E

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]

Rev.

Repl.

Date

Sign

Change description

E 4 2015-05-11

MB

Cover page update; DoC removed; no other
changes to content

4 3 2012-11-14

SHH

Updated chapter 5.1

3 2 2012-06-12

AJM

Updated chapter 3.4

2 1 2011-08-15

SHH

Enabled functionality for fibre breakage detection
signal. Only available in HW version 1.1. Updated in

3.5. Added MADI transport chapter.

1 0 2009-10-23

AJM

Updated DIP 3 and 7 in 3.1 and dip 3, 6 and 7 in 3.2.
Updated figure 10 and 11.

0 - 2009-04-09

AJM

First release.

Nevion Support

E-mail: [e-mail]

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

Revision history

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

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3GHD-EO / 3GHD-EO-2 Rev. E

Contents

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

1.1 Product version ............................................................................................................... 5

2 Specifications ..................................................................................................................... 7

2.1 General ........................................................................................................................... 7

2.2 Electrical Input ................................................................................................................. 7

2.3 Electrical Outputs ............................................................................................................ 7

2.4 Optical Output ................................................................................................................. 7

2.5 Standards ........................................................................................................................ 8

3 Configuration ...................................................................................................................... 9

3.1 Single converter .............................................................................................................. 9

3.2 Dual converter ................................................................................................................10

3.3 Reclocker mode .............................................................................................................11

3.4 Automatic change over ...................................................................................................11

3.5 Fibre breakage detection signalling ................................................................................11

3.6 Single converter configuration example ..........................................................................12

3.7 Dual converter configuration example .............................................................................13

4 MADI transport ..................................................................................................................14

4.1 Connections ................................ ................................................................ ...................14

4.2 Terminal format support..................................................................................................14

4.3 Mounting the connector module ......................................................................................15

5 Module status ....................................................................................................................16

5.1 GPI ALARM – Module Status Outputs ............................................................................16

5.2 Front panel – Status monitoring ......................................................................................17

6 RS422 commands .............................................................................................................18

6.1 FLP4.0 block commands ................................................................................................18

6.2 Single converter .............................................................................................................19

6.3 Dual converter ................................................................................................................19

General environmental requirements for Nevion equipment .................................................21

Product Warranty .................................................................................................................22

Appendix A Materials declaration and recycling information .................................................23

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3GHD-EO / 3GHD-EO-2 Rev. E

1 Product overview

The Flashlink 3GHD-EO and 3GHD-EO-2 is a single or dual multi bit-rate electrical to optical
converter module providing high performance media conversion for various signal formats
from 19.4Mbps up to 2970Mbps. Unmatched signal accuracy, even in critical applications
with pathological signal patterns makes the 3GHD-EO and 3GHD-EO-2 the first choice for all
optical transport demands.

The 3GHD-EO and 3GHD-EO-2 can transport all HD and SD signal formats in addition to
DVB-ASI and SMPTE310M. It performs electrical equalizing and signal re-clocking, which is
selectable on application. High quality optical transmitters using FP or DFB lasers are
suitable for short and medium haul applications. The open system platform of Nevion
Flashlink system allows easy interoperability with third party fiber optical systems.

The two modules also support Fibre breakage detection signalling. This feature allows for the
user to distinguish between a loss of signal at the input of the transmitter and a fibre
breakage towards the receiver.

The 3GHD-EO and 3GHD-EO-2 unit has also two electrical outputs for each channel, which

reduces the need for additional DA’s. The electrical input is equipped with a multi rate cable

equalizer providing an equalization of typically 75m of high quality coax cable at 2970Mbps.

Figure 1 Block diagram of the 3GHD-E0 converter

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3GHD-EO / 3GHD-EO-2 Rev. E

3GHD-EO-13T -7.5dBm

1310nm -7.5dBm F-P laser

3GHD-EO-C1270

1270nm 0dBm

3GHD-EO-C1290

1290nm 0dBm

3GHD-EO-C1310

1310nm 0dBm

3GHD-EO-C1330

1330nm 0dBm

3GHD-EO-C1350

1350nm 0dBm

3GHD-EO-C1370

1370nm 0dBm

3GHD-EO-C1390

1390nm 0dBm

3GHD-EO-C1410

1410nm 0dBm

3GHD-EO-C1470

1470nm 0dBm

3GHD-EO-C1490

1490nm 0dBm

3GHD-EO-C1510

1510nm 0dBm

3GHD-EO-C1530

1530nm 0dBm

3GHD-EO-C1550

1550nm 0dBm

3GHD-EO-C1570

1570nm 0dBm

3GHD-EO-C1590

1590nm 0dBm

3GHD-EO-C1610

1610nm 0dBm

Figure 2 Block diagram of the 3GHD-EO-2 converter

1.1 Product version

3GHD-EO is available in the following version:
Single converter version:

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3GHD-EO / 3GHD-EO-2 Rev. E

3GHD-EO-2-T13 -7.5dBm

1310nm -7.5dBm F-P laser

3GHD-EO-2-C1310/1550

1310nm and 1550nm 0dBm DFB laser

3GHD-EO-2-C1470/1490

1470nm and 1490nm 0dBm DFB laser

3GHD-EO-2-C1510/1530

1510nm and 1530nm 0dBm DFB laser

3GHD-EO-2-C1550/1570

1550nm and 1570nm 0dBm DFB laser

3GHD-EO-2-C1590/1610

1590nm and 1610nm 0dBm DFB laser

3GHD-EO-2-C1270/1290

1270nm and 1290nm 0dBm DFB laser

3GHD-EO-2-C1310/1330

1310nm and 1330nm 0dBm DFB laser

3GHD-EO-2-C1350/1370

1350nm and 1370nm 0dBm DFB laser

3GHD-EO-2-C1390/1410

1390nm and 1410nm 0dBm DFB laser

Dual converter version:

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3GHD-EO / 3GHD-EO-2 Rev. E

2 Specifications

2.1 General

Power +5V DC / 3.5W, max
Control Control system for access to setup and module status with

BITE (Built-In Test Equipment)

Temp. range 0 to +40 °C

2.2 Electrical Input

Data rate NRZ 19.4 to 2970Mbps
Equalization Automatic,

Cable equalizer and reclocker can be bypassed to support

bitrates down to 2Mbps.
Impedance 75 ohm
Return loss >15dB @ 5-1485MHz
>10dB 1485-2970MHz
Signal level Nom. 800mV
Connector BNC, 2 inputs

2.3 Electrical Outputs

Number of outputs 4 on single converter
2 (per converter) on the dual converter
Connector BNC
Impedance 75 ohm
Return loss >15dB @ 5-1485MHz
>10dB 1485-2970MHz
Peak to peak signal level 800mV ± 100mV
Signal polarity 2 inverting, 2 non-inverting on single converter
1 inverting, 1 non-inverting (per converter) on dual converter

2.4 Optical Output

Number of outputs 1 on single converter
1 (per converter) on the dual converter
Transmission circuit fiber Single mode 9/125um
Light source F-P / DFB laser
Optical power 13T -7.5dBm: -3 to -12dBm, typ -5dBm,
CWDM: +0dBm +/- 1dBm
Optical centre wavelength 1310nm or CWDM
Max. wavelength variation +/- 6nm for CWDM
+/-20nm for 1310nm

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