Network Electronics CWDM-1-8, CWDM-9-16, CWDM-1-8-L, CWDM-1-8-M, CWDM-9-16-L User Manual

network-electronics.com

8-channel CWDM multiplexer

and demultiplexer/

- multi mode (-M)/

-low-loss (-L)

Rev. 2

Flashlink User Manual

CWDM-1-8/9-16

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

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

CWDM-1-8/-9-16/1-8-L/9-16-L/1-8-M/9-16-M Rev. 2

Network Electronics ASA

Thorøya

P.O. Box 1020

N-3204 Sandefjord, Norway

Phone: [phone]

Fax: [phone]

Email:

[e-mail]

www.network-electronics.com

Support Phone: [phone]

Revision history

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

Rev. Repl. Date Sign Change description

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
A - 2002-10-01 RS Preliminary version

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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 Mounting the CWDM filter............................................................................................ 6

3.2 1-8 channel system........................................................................................................ 6

3.3 9-16 channel system...................................................................................................... 7

4 Laser safety precautions ..........................................................................................8

General environmental requirements for Network Electronics equipment..................9

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

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

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

A.2 Environmentally-friendly use period ............................................................................. 11

A.3 Recycling information.................................................................................................. 12

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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
ITU-T 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 fibre. 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 fibre 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

o

C

Storage Temperature -40 – 85

o

C

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 fibre) 50/125um
Directivity, -M) 40dB min
Connector Return loss 10dB min

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3 Connections

3.1 Mounting the CWDM filter

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.

3.2 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 fibre

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3.3 9-16 channel system

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

Each set of 8 channels must first be connected like described in chapter

3.2, figure 3.

Figure 5: 16-channel CWDM filters connected to main fibre

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4 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 fibre pigtails (ends).

Never look directly into the pigtail of the laser/fibre.

Never use microscopes, magnifying glasses or eye loupes to look into a fibre 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 power

1

: 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 Network Electronics

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 Network Electronics ASA. These conditions are available on the
company web site of Network Electronics ASA:

www.network-electronics.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.

Toxic or hazardous substances and elements

組成名稱

Part Name

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)

WOC-2-50-50/­90-10/-95-05
WOC-4-25

X 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.

A.2 Environmentally-friendly use period

The manual must include a statement of the “environmentally friendly use period”. This is
defined as the period of normal use before any hazardous material is released to the
environment. The guidance on how the EFUP is to be calculated is not finalised at the time
of writing. See

http://www.aeanet.org/GovernmentAffairs/qfLeOpAaZXaMxqGjSFbEidSdPNtpT.pdf for an

unofficial translation of the draft guidance. For our own products, Network Electronics has
chosen to use the 50 year figure recommended in this draft regulation.

Network Electronics suggests the following statement on An “Environmentally Friendly Use
Period” (EFUP) setting out normal use:

EFUP is the time the product can be used in normal service life without leaking the hazardous
materials. We expect the normal use environment to be in an equipment room at controlled
temperature range (0ºC - 40ºC) with moderate humidity (< 90%, non-condensing) and clean air, not
subject to vibration or shock.

Further, a statement on any hazardous material content, for instance, for a product that uses
some tin/lead solders:

Where a product contains potentially hazardous materials, this is indicated on the product by the
appropriate symbol containing the EFUP. The hazardous material content is limited to lead (Pb) in
some solders. This is extremely stable in normal use and the EFUP is taken as 50 years, by comparison
with the EFUP given for Digital Exchange/Switching Platform in equipment in Appendix A of “General
Rule of Environment-Friendly Use Period of Electronic Information Products”. This is indicated by the
product marking:

50

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It is assumed that while the product is in normal use, any batteries associated with real-time clocks or
battery-backed RAM will be replaced at the regular intervals.

The EFUP relates only to the environmental impact of the product in normal use, it does not imply that the

product will continue to be supported for 50 years.

A.3 Recycling information

Network Electronics provides assistance to customers and recyclers through our web site

http://www.network-electronics.com. Please contact Network Electronics’ 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 Network Electronics 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 labelled 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.

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