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Westermo TDW-33

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TDW-33

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Marvo Stock ID MV-1FP1
HS Code 85176200
SKU TDW-33
Condition Used
Category General Automation
Warranty 12 months
Weight (lbs) 2.20
Length (inches) 8.27
Width (inches) 6.69
Height (inches) 2.36

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Specification & Description

Specification Description
Part Number TDW-33
Manufacturer Westermo
Category General Automation
Part Family -
Dimensions (W x H x D) 35 mm x 121 mm x 119 mm
Weight 0.21 kg
Degree of Protection IP21
Mounting Horizontal on 35 mm DIN-rail
Operating Voltage 10 to 60 VDC or 10 to 42 VAC
Rated Current 150 mA @ 12 VDC, 70 mA @ 24 VDC, 40 mA @ 48 VDC, 150 mA @ 12 VAC, 70 mA @ 24 VAC
Operating Temperature -25 to +70°C (-13 to +158°F)
Storage Temperature -40 to +70°C (-40 to +158°F)
Humidity 5 to 95% relative humidity non-condensing
Altitude Operating up to 2000 m / 70 kPa
Data Rate (PSTN) 300 bit/s – 33.6 kbit/s
Data Rate (RS-232) 1 200 bit/s – 115.2 kbit/s
Protocols Supported Bell103, Bell212, V.21, V.22, V.22Bis, V.23C, V.32, V.32Bis, V.34, V.90
Connection (PSTN) RJ-11C
Connection (RS-232) 9-pin D-sub female (DCE) and Detachable screw terminal (DCE)
EMC Compliance EN 55022, EN 55024, EN 61000-6-1, EN 61000-6-2, EN 61000-6-4, EN 50121-4, IEC 62236-4
Safety Compliance UL/IEC/EN 60950-1
PSTN Compliance CS 03 Part 1, ETSI TS103 021-1, ETSI TS103 021-2, ETSI TS103 021-3, AS/ACIF S002, AS/ACIF S006
Description The Westermo TDW-33 is an industrial telephone modem designed for robust and reliable communication in demanding environments. It supports a wide range of data rates and protocols, ensuring compatibility with various systems. The modem is built to withstand harsh conditions, with a wide operating temperature range and high humidity tolerance. It is easy to install on a standard 35 mm DIN-rail and offers multiple connection options for flexibility. The TDW-33 is compliant with stringent EMC and safety standards, making it a dependable choice for industrial automation applications.

The Westermo TDW-33 is an industrial-grade telephone modem designed to ensure reliable communication in demanding environments. This modem supports data rates up to 56 kbit/s on the PSTN line side and terminal data rates up to 115.2 kbit/s via its RS-232 interface. Engineered for robustness, the TDW-33 features transient protection on all interfaces and a watchdog function that automatically resets the modem in case of a fault, making it ideal for remote and unmanned installations.

The TDW-33 is equipped with advanced security features, including password protection, dial-back security, and caller ID answering, ensuring that only authorised users can access the connected equipment. Its tri-galvanic isolation between the interface, line, and power supply enhances safety and reliability.

Designed for ease of installation, the TDW-33 mounts effortlessly onto a 35 mm DIN-rail and operates within a wide temperature range of -25°C to +70°C. It is powered by a 12–36 V DC supply and features screw terminal connections for secure and straightforward wiring.

With its robust design, high data rate capabilities, and comprehensive security features, the Westermo TDW-33 is an excellent choice for industrial applications requiring dependable and secure telephone modem communication.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

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What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

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Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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How do I create an account?

Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

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Frequently Asked Questions

What is the primary function of this industrial modem?

The primary function of this industrial modem is to facilitate reliable data communication over telephone lines in industrial environments.

What are the dimensions of the modem?

The dimensions of the modem are 119 mm in height, 35 mm in width, and 121 mm in depth.

What type of mounting does this modem support?

This modem supports horizontal mounting on a 35 mm DIN-rail.

What is the operating temperature range for this modem?

The modem operates within a temperature range of -25°C to +70°C.

What are the power requirements for this modem?

The modem operates on a voltage range of 10 to 60 VDC or 10 to 30 VAC, with a rated current of 150 mA at 12 VDC.

What data rates does this modem support?

The modem supports data rates from 300 bit/s to 33.6 kbit/s for PSTN connections and 1,200 bit/s to 115.2 kbit/s for RS-232 connections.

What protocols are supported by this modem?

The modem supports various protocols including Bell103, Bell212, V.21, V.22, V.22Bis, V.23C, V.32, V.32Bis, V.34, and V.90.

What type of cooling does this modem use?

The modem uses convection cooling to maintain optimal operating temperatures.

Is the modem protected against electrical surges?

Yes, the modem is designed to be fault-tolerant and can handle installation faults up to ±60 V.

What type of interface connections does this modem have?

The modem features a detachable screw terminal for power connections and an RJ-11C connector for PSTN connections. It also includes a 9-pin D-sub female connector for RS-232 connections.

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Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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