

MCW-211 Series
Industrial Ethernet Media Converter
6645-2204
General information
Legal information The contents of this document are provided “as is”. Except as required by applicable law, no warranties of any kind, either express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose, are made in relation to the accuracy and reliability or contents of this document. Westermo reserves the right to revise this document or withdraw it at any time without prior notice.
Under no circumstances shall Westermo be responsible for any loss of data or income or any special, incidental, and consequential or indirect damages howsoever caused.
More information about Westermo can be found at www.westermo.com
About This Guide
This guide is intended for installation engineers and users of the Westermo products. It includes information on safety and regulations, a product description, installation instructions and technical specifications.
Safety and Regulations
Warning signs are provided to prevent personal injuries and/or damages to the product.
The following levels are used:
| Level of warning | Description | Consequence personal injury | Consequence material damage |
WARNING | Indicates a potentially situation | Possible death or major injury | Major damage to the product |
| Indicates a potentially hazardous situation | Minor or moderate injury | Moderate damage to the product | |
| Provides information in order to avoid misuse of the product, confusion or misunderstanding | No personal injury | Minor damage to the product | |
| Used for highlighting general, but important information | No personal injury | Minor damage to the product |
Safety Information
Before installation:
Read this manual completely and gather all information on the product. Make sure that you understand it fully. Check that your application does not exceed the safe operating specifications for this product.
WARNING – SAFETY DURING INSTALLATION The product must be installed and operated by qualified service personnel and installed into an apparatus cabinet or similar, where access is restricted to service personnel only. During installation, ensure a protective earthing conductor is first connected to the protective earthing terminal (only valid for metallic housings). Westermo recommends a crosssectional area of at least 4 mm2. If the product does not have a protective earthing terminal, then the DIN-rail must be connected to protective earth. Upon removal of the product, ensure that the protective earthing conductor, or the connection to earth via the DIN-rail, is disconnected last.
WARNING – HAZARDOUS VOLTAGE
Do not open an energized product. Hazardous voltage may occur when connected to a power supply.
WARNING – PROTECTIVE FUSE
The power supply wiring must be sufficiently fused. It must be possible to disconnect manually from the power supply. Ensure compliance to national installation regulations. Replacing the internal fuse must only be performed by Westermo qualified personell.
WARNING – REDUCE THE RISK OF FIRE
To reduce the risk of fire, use only telecommunication line cords with a cable diameter of AWG 26 or larger. Regarding power cable dimensions, see Interface Specifications.
CAUTION – CLASS 1 LASER PRODUCT
Do not look directly info a fibre optical port or any connected fibre, although the product is designed to meed the Class 1 Laser regulations and complies with 21 CFR 1040.10 and 1040.11.
CAUTION – FIBRE OPTIC HANDLING
Fibre optic equipment need special treatment. It is very sensitive to dust and dirt. If the fibre is disconnected from the product, the protective plugs on the transmitter/receiver must be connected. The protective plugs must be kept on during transportation. The fibre optics cables must be handled the same way.
CAUTION – CORROSIVE GASES
If the product is placed in a corrosive environment, it is important that all unused connector sockets are protected with a suitable plug, in order to avoid corrosion attacks on the gold plated connector pins.
CAUTION – ELECTROSTATIC DISCHARGE (ESD)
Prevent electrostatic discharge damages to internal electronic parts by discharging your body to a grounding point (e.g. use a wrist strap).
Care recommendations
Follow the care recommendations below to maintain full operation of product and to fulfil the warranty obligations:
- Do not drop, knock or shake the product. Rough handling above the specification may cause damage to internal circuit boards.
- Use a dry or slightly water-damp cloth to clean the product. Do not use harsh chemicals, cleaning solvents or strong detergents.
- Do not paint the product. Paint can clog the product and prevent proper operation.
If the product is used in a manner not according to specification, the protection provided by the equipment may be impaired.
If the product is not working properly, contact the place of purchase, nearest Westermo distributor office or Westermo technical support.
Cleaning of the optical connectors
In the event of contamination, the optical connectors should be cleaned by the use of forced nitrogen and some kind of cleaning stick.
Recommended cleaning fluids:
- Methyl-, ethyl-, isopropyl- or isobutyl-alcohol
- Hexane
- Naphtha
Maintenance
No maintenance is required, as long as the product is used as intended within the specified conditions.
Product disposal
This symbol means that the product shall not be treated as unsorted municipal waste when disposing of it. It needs to be handed over to an applicable collection point for recycling electrical and electronic equipment.
By ensuring the product is disposed of correctly, you will help to reduce hazardous substances and prevent potential negative consequences to both environment and human health, which could be caused by inappropriate disposal.
Article number, model and description
| Article | Model | Description |
| 3645-0001 | MCW-211-MM-SC2 | 10/100Base-T/TX: 1 port 100Base-FX: 1 port |
| 3645-0010 | MCW-211-MM-ST2 | 10/100Base-T/TX: 1 port 100Base-FX: 1 port |
| 3645-0020 | MCW-211-SM-SC15 | 10/100Base-T/TX: 1 port 100Base-FX: 1 port |
| 3645-0030 | MCW-211-SM-LC15 | 10/100Base-T/TX: 1 port 100Base-FX: 1 port |
| 3645-0040 | MCW-211-SM-LC40 | 10/100Base-T/TX: 1 port 100Base-FX: 1 port |
| 3645-0050 | MCW-211-MM-LC2 | 10/100Base-T/TX: 1 port 100Base-FX: 1 port |
Simplified EU declaration of conformity
Hereby, Westermo declares that the equipment is in compliance with applicable EU directives. The full EU declaration of conformity and other detailed information are available at the respective product page at www.westermo.com/support/product-support.
Agency approvals and standards compliance
| Type | Approval / Compliance |
| EMC | EN 61000-6-2, Immproducty industrial environments |
| EN 61000-6-4, Emission industrial environments | |
| Marine | DNV GL rules for classification – Ships and offshore products¹ |
| Note | ¹ Applicable only for 3645-0030, 3645-0040 , 3645-0050 |
Corrosive environment:
This product has been successfully tested in a corrosion test according to IEC 60068-2-60, method 4. This means that the product meets the requirements to be placed in an environment classified as ISA-S71.04 class G3.
CAUTION – CORROSIVE GASES
If the product is placed in a corrosive environment, it is important that all unused connector sockets are protected with a suitable plug, in
order to avoid corrosion attacks on the gold plated connector pins.
Type tests and environmental conditions
| Electromagnetic Compatibility | |||
| Phenomena | Test | Description | Level |
| ESD | EN 61000-4-2 | Enclosure contact | ± 4 kV |
| Enclosure air | ± 8 kV | ||
| RF field AM modulated | IEC 61000-4-3 | Enclosure | 10 V/m 80% AM (1 kHz), 30 — 2700 MHz |
| Fast transient | EN 61000-4-4 | Signal ports | ± 1 kV |
| Power ports | ± 2 kV | ||
| Surge | EN 61000-4-5 | Signal ports balanced | ± 2 kV line to earth, ± 1 kV line to line |
| Power ports | ± 2 kV line to earth, ± 2 kV line to line | ||
| RF conducted | EN 61000-4-6 | Signal ports | 10 V 80% AM (1 kHz), 0.15 — 80 MHz |
| Power ports | 10 V 80% AM (1 kHz), 0.15 — 80 MHz | ||
| Voltage dips and interruption | EN 61000-4-29 | DC power ports | 10 ms, interruption 10 ms, 30% reduction 10 ms, 60% reduction +20% above & —20% below rated voltage |
| Radiated emission | CISPR 16-2-3 ANSI C63.4 (FCC part 15) | Enclosure | Class A |
| Conducted emission | CISPR 16-2-1 | DC power ports | Class A |
| Dielectric strength | UL 60950-1 | Signal port to other isolated ports | 1.5 kVrms 50 Hz 1 min |
| Power port to other isolated ports | 2 kVrms 50 Hz 1 min | ||
| Environmental | |||
| Temperature | EN 60068-2-1 EN 60068-2-2 | Operating | -25 to +70°C |
| Maximum surface temperature | 135°C (temperature class T4) | ||
| Storage & Transport | -40 to +70°C | ||
| Humidity | EN 60068-2-30 | Operating | 5 to 95% relative humidity |
| Storage & Transport | 5 to 95% relative humidity | ||
| Altitude | Operating | 2 000 m / 70 kPa | |
| Service life | Operating | 10 year | |
| Vibration | IEC 60068-2-6 | Operating | 7.5 mm, 5 — 8 Hz |
| 2 g, 8 — 500 Hz | |||
| Shock | IEC 60068-2-27 | Operating | 15 g, 11 ms |
| Packaging | |||
| Enclosure, MCW-211 | UL 94 | PC / ABS | Flammability class V-1 |
| Enclosure, MCW-211 Ex | Cabelec 6141 | ||
| Dimension WxHxD | 35 x 121 x 119 mm | ||
| Weight | 0.25 kg | ||
| Degree of protection | IEC 529 | Enclosure | IP 21 |
| Cooling | Convection | ||
| Mounting | Horizontal on 35 mm DIN-rail | ||
Interface specifications
| Power | |
| Rated voltage | 12 to 48 VDC |
| Operating voltage | 10 to 60 VDC |
| Rated current | 200 mA @ 12 VDC 100 mA @ 24 VDC 50 mA @ 48 VDC |
| Rated frequency | DC |
| Inrush current 12t | 0.03 /Vs @ 12 VDC |
| Startup current* | 0.75 A peak |
| Polarity | Reverse polarity protected |
| Redundant power input | Yes |
| Isolation to | Ethernet TX |
| Ethernet FX | |
| Connection | Detachable screw terminal |
| Connector size | 0.2 — 2.5 mm, (AWG 24 — 12) |
| Shielded cable | Not required |
* Direction relative this product
| Ethernet TX | |
| Electrical specification | IEEE std 802.3. 2000 Edition |
| Data rate | 10 Mbit/s or 100 Mbit/s, manual or auto |
| Duplex | Full or half, manual or auto |
| Transmission range | 100 m |
| Isolation to | Power |
| Connection | RJ-45 |
| Ethernet FX | |
| Optical specification | IEEE std 802.3. 2000 Edition |
| Data rate | 100 Mbit/s |
| Duplex | Full or half |
| Connection | SC, ST or LC |
Location of interface ports and LEDs

Fibre optic power budget
| Model | MCW-211-MM xx2 | MCW-211-SM SC15 | MCW-211-SM LC15 | MCW-211-SM LC40 |
| Transmitted wavelength | 1310 nm | 1310 nm | 1310 nm | 1310 nm |
| Min. output power, transmitter | -19 dBm | -15 dBm | -15 dBm | -5 dBm |
| Max. output power, transmitter | -12 dBm | -8 dBm | -8 dBm | 0 dBm |
| Input sensitivity, receiver | -31 dBm | -34 dBm | -31 dBm | -34 dBm |
| MM. power budget | 12 dBm | 19 dBm | 16 dBm | 29 dBm |
| Max. power budget | 19 dBm | 26 dBm | 23 dBm | 34 dBm |
| Recommended fibre cable and core / cladding diameter | Multimode 50/125, 62.5/125 | Singlemode 9/125. 10/125 | Singlemode 9/125, 10/125 | Singlemode 9/125, 10/125 |
| Fibre type | Normal attenuation @ 1310 nm multimode | Normal attenuation @ 1310 nm singlemode | ||
| 50/125 | 3.0 dBm/km | – | ||
| 62,5/125 | 3.5 dBm/km | – | ||
| 9/125 | – | 0.5 dBm/km | ||
| 10/125 | – | 0.5 dBm/km | ||
Attenuation in connectors / splices
| Type | Normal attenuation |
| Connector | 0.2 – 0.4 dBm |
| Fusion splice | 0.1 dBm |
| Mechanical splice | 0.2 dBm |
LED indicators
LED indicators are available on the front panel and on the RJ-45 TX connector.
| LED | Status | Description | |
| PWR | ON | Internal power, initialising OK | |
| Slow flash | Initialisation progressing | ||
| Fast flash | Initialisation error | ||
| LINK TX | OFF | No Ethernet link TX | |
| ON | Good Ethernet link TX | ||
| Flash | Ethernet data is transmitted or received on TX interface | ||
| LINK FX | OFF | No Ethernet link FX | |
| ON | Good Ethernet link FX | ||
| Flash | Ethernet data is transmitted or received on FX interface | ||
| FX DPX | OFF | Half dupex FX interface | |
| ON | Full duplex FX interface | ||
| LFF | OFF | Link fault forward is not active | |
| ON | Link fault forward is active and has shutdown an interface |
| LED | Status | Description | |
| SPD | OFF | 10 Mbitls TX interface | |
| ON | 100 Mbitls TX interface | ||
| DPX | OFF | Half duplex TX interface | |
| ON | Full duplex TX interface |
Installation
Mounting / Removal
WARNING – HAZARDOUS VOLTAGE
Do not open an energized product. Hazardous voltage may occur when connected to a power supply.
CAUTION – ELECTROSTATIC DISCHARGE (ESD)
Prevent electrostatic discharge damages to internal electronic parts by discharging your body to a grounding point (e.g. use a wrist strap).
Mounting
This product should be mounted on 35 mm DIN-rail which is horizontally mounted on a wall or cabinet backplate. Snap on mounting, see figure
Cooling
This product uses convection cooling. To avoid obstructing the airflow around the product, use the following spacing rules.
Recommended spacing 25 mm (1.0 inch) above/below and 10 mm
* Spacing (left/right) recommended for full operating temperature range
Removal Press down the black support at the back of the product, see figure.
Configuration
DIP switches are accessible under the lid on top of the product. DIP switches are used to configure the product.
DIP-switch settings
WARNING – HAZARDOUS VOLTAGE
Do not open an energized product. Hazardous voltage may occur when connected to a power supply.
CAUTION – ELECTROSTATIC DISCHARGE (ESD)
Prevent electrostatic discharge damages to internal electronic parts by discharging your body to a grounding point (e.g. use a wrist strap).
NOTE! DIP-switch alterations are only effective after a power on.
Observe this when the DIP-switches will be configured
Speed and duplex setting only valid when auto-negotiation is disabled.
If auto-negotiation and auto MDI/MDI-X disabled the TX ports supports MDI-X configuration.

TX Port settings
| Auto-negotiation and auto MDI / MDI-X disabled TX port | |
| Auto-negotiation and auto MDI / MDI-X enabled TX port | |
| 10 Mbit/s speed selected TX port | |
| 100 Mbit/s speed selected TX port | |
| Half duplex selected TX port | |
| Full duplex selected TX port |
FX Port settings
| Half duplex selected FX port | |
| Full duplex selected FX port |
Flow control setting
| Flow control disabled | |
| Flow control disabled |
Link fault forward settings
| TX → FX Link fault forward disabled | |
| TX → FX Link fault forward enabled | |
| FX → TX Link fault forward disabled | |
| FX → TX Link fault forward enabled |
| Factory settings |

Westermo · SE-635 35 Stora Sundby, Sweden
Tel +46 16 42 80 00 Fax +46 16 42 80 01
E-mail: [email protected]
www.westermo.com
REV. F 6645-2204 2021-01 Westermo Network Technologies AB, Sweden

















