Nevion CWDM-9-16, CWDM-9-16-M, CWDM-1-8-M, CWDM-1-8-L, CWDM-1-8 User Manual

Nevion

Nordre Kullerød 1
3241 Sandefjord
Norway
Tel: [phone]

nevion.com

CWDM-1-8 / 9-16

CWDM-1-8-M / 9-16-M

CWDM-1-8-L / CWDM-9-16-L

9-channel CWDM multiplexer and demultiplexer /

multi mode (-M) / -low-loss (-L)

User manual

Rev. D

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Nevion Support

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.

Revision history

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

Rev.

Repl.

Date

Sign

Change description

D 3 2015-05-14

MB

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

3 2 2010-12-13

AA

New template. Updated China RoHS and added
Declaration of Conformity.

2 1 2007-09-01

RS

Complete restructuring of user manual, adding
specifications for –L (low loss) and –M (multi mode)
versions, removed description of 4-channel CWDM.
Updated Materials Declaration and added EFUP.

1 0 2003-05-14

RS

Corrected interconnection of sub-racks with RS-422 .

0 A 2002-11-19

RS

Product release.

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Contents

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

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

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

2.1 Optical specifications ....................................................................................................... 5

3 Connections ............................................................................................................. 6

3.1 1-8 channel system ......................................................................................................... 6

4 9-16 channel system................................................................................................ 7

5 Laser safety precautions .......................................................................................... 8

General environmental requirements for Nevion equipment....................................... 9

Product Warranty ...................................................................................................... 10

Appendix A Materials declaration and recycling information..................................... 11

A.1 Materials declaration ......................................................................................................11

A.2 Recycling information .....................................................................................................11

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1 Product overview

The Flashlink CWDM (Coarse Wavelength Division Multiplexing) system is based on all­optical modules for multiplexing and demultiplexing 8 CWDM wavelengths according to ITU­T G.694.2. Two sets of wavelengths, one from 1470 to 1610nm (1-8) and one from 1270 to
1410nm with an upgrade port. By use of the upgrade port, up to 16 optical signals can be run
over a single fiber. The units are passive and all-optical devices, requiring no power supply
or control. Any number of channels can be used to transport signals in one direction with the
rest of the channels transporting signals in the other direction. The units can be cascaded
through the upgrade ports in the 9-16 module.

Figure 1 - CWDM-1-8/9-16 block diagram

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2 Specifications

2.1 Optical specifications

Single mode

Number of channels

8+8

Available wavelengths

Ch. 1-8:

1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610nm

Ch. 9-16:

1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410nm

Connector

SC/UPC

Insertion loss (end to end, including
connectors)

5dB max for 8 channels

7dB max for 16 channels

Insertion loss (end to end, incl.
connectors, low loss, -L)

4dB max for 8 channels

6dB max for 16 channels

Insertion loss (common to upgrade)

1dB max, single mode

Channel Spacing

20nm

Passband

13nm min

Transmission circuit fiber

9/125um single mode

Adjacent Channel Isolation

25dB min

Non-Adjacent Channel Isolation

35dB min

Directivity

55dB min

Connector Return loss

30dB min

PDL

0.2dB max

Operating Temperature

0 – 40 oC

Storage Temperature

-40 – 85 oC

Optical Power

250mW max

Multi mode specific parameters for –M versions differing from above

Insertion loss (end to end, incl.
connectors)

5.7dB max for 8 channels

Transmission circuit fiber)

50/125um

Directivity, -M)

40dB min

Connector Return loss

10dB min

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3 Connections

The CWDM filter must be mounted in a Flashlink subrack. This is done from the rear of the
subrack. Do not use force when inserting the CWDM filter, once the module’s upper rail
aligns with the card rail in the subrack, it should slide easily into place. Lock it with 4
M2.5x8mm screws.

Figure 2 - CWDM-1-8 mounted in a Flashlink subrack

3.1 1-8 channel system

Connect each of the optical ports to the corresponding optical port on the receiver or
transmitter that matches the signal type and wavelength.

Figure 3 - Interconnection of an 8 channel system.

Figure 4 - 8-channel CWDM filter connected to main fiber

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4 9-16 channel system

Using the upgrade port of the CWDM-9-16 enables to have up to 16 wavelengths on a single
fiber.

Each set of 8 channels must first be connected like described in chapter 3.1, figure 3.

Figure 5 - 16-channel CWDM filters connected to main fiber

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5 Laser safety precautions

These are guidelines to limit hazards from laser exposure.
All the available EO units in the Flashlink range include a laser.
Therefore this note on laser safety should be read thoroughly even though there is no laser

onboard this product.
The lasers emit light at 1310 nm or 1550 nm. This means that the human eye cannot see the

beam, and the blink reflex cannot protect the eye. (The human eye can see light between
400 nm to 700 nm).

A laser beam can be harmful to the human eye (depending on laser power and exposure
time). Therefore:

Be careful when connecting / disconnecting fiber pigtails (ends).
Never look directly into the pigtail of the laser/fiber.
Never use microscopes, magnifying glasses or eye loupes to look into a fiber

end.
Use laser safety goggles blocking light at 1310 nm and at 1550 nm

Instruments exist to verify light output power: Power meters, IR-cards etc.
Flashlink features:
The FR-2RU-10-2 is classified as Class 1 laser product according to EN 60 825-1:94/A11:96,

and CFR Ch1 (1997) Part 1040.10.
If the front panel is removed, the FR-2RU-10-2 is classified as Class 1 laser product

according to EN 60 825-1:94/A11:96, and class IIIb according to CFR Ch1 (1997) Part

1040.10.
Maximum output power1: 17 mW
Operating wavelengths: > 1260 nm

1

Max power is for safety analysis only and does not represent device performance.

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General environmental requirements for Nevion equipment

1.

The equipment will meet the guaranteed performance specification under the following
environmental conditions:

-

Operating room temperature range:

0°C to 50°C

-

Operating relative humidity range:

<90% (non-condensing)

2.

The equipment will operate without damage under the following environmental
conditions:

-

Temperature range:

-10°C to 60°C

-

Relative humidity range:

<95% (non-condensing)

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Product Warranty

The warranty terms and conditions for the product(s) covered by this manual follow the
General Sales Conditions by Nevion, which are available on the company web site:

www.nevion.com

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Appendix A Materials declaration and recycling information

A.1 Materials declaration

For product sold into China after 1st March 2007, we comply with the “Administrative

Measure on the Control of Pollution by Electronic Information Products”. In the first stage of
this legislation, content of six hazardous materials has to be declared. The table below
shows the required information.

組成名稱

Part Name

Toxic or hazardous substances and elements

鉛

Lead

(Pb)

汞

Mercury

(Hg)

镉

Cadmium

(Cd)

六价铬

Hexavalent

Chromium

(Cr(VI))

多溴联苯

Polybrominated

biphenyls

(PBB)

多溴二苯醚

Polybrominated

diphenyl ethers

(PBDE)

CWDM-1-8/-9-16/1-8­L/9-16-L/1-8-M/9-16-M

O O O O O

O

O: Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is
below the limit requirement in SJ/T11363-2006.

X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used
for this part is above the limit requirement in SJ/T11363-2006.

This is indicated by the product marking:

A.2 Recycling information

Nevion provides assistance to customers and recyclers through our web site

http://www.nevion.com/. Please contact Nevion’s Customer Support for assistance with

recycling if this site does not show the information you require.
Where it is not possible to return the product to Nevion or its agents for recycling, the

following general information may be of assistance:

 Before attempting disassembly, ensure the product is completely disconnected from

power and signal connections.

 All major parts are marked or labeled to show their material content.
 Depending on the date of manufacture, this product may contain lead in solder.
 Some circuit boards may contain battery-backed memory devices.