WESTERMO MD-45 LV Serial Interface Converter
Discover the reliable WESTERMO MD-45 LV, an industrial-grade serial converter for RS-232 to RS-485/422 applications. Features 3-way galvanic isolation and a wide operating temperature range for harsh environments.
WESTERMO MD-45 LV Serial Interface Converter
The WESTERMO MD-45 LV is a robust and reliable industrial interface converter designed to bridge V.24/RS-232-C and RS-422/RS-485/V.11 serial connections. Engineered for harsh industrial environments, it provides seamless data transmission over long distances, far exceeding the limitations of standard RS-232. The MD-45 LV features complete 3-way galvanic isolation to protect connected equipment from ground loops and electrical transients. Its straightforward design includes a D-sub connector for RS-232 and screw terminals for the line and power connections, ensuring secure and simple installation. Diagnostic LEDs for power, data transmission (TD/RD), and control signals (RTS/CTS/DSR/SG) offer at-a-glance status monitoring, making it an ideal solution for industrial automation, process control, and SCADA systems.
Technical Specifications:
- Interface 1: V.24 / RS-232-C (D-sub 25-pin female)
- Interface 2: RS-422 / RS-485 / V.11 (4-position detachable screw terminal)
- Power Supply: 10–30 VDC (Low Voltage)
- Data Rate: Up to 115.2 kbit/s
- Isolation: 3-way galvanic isolation (2.5 kV) between interfaces and power supply
- Indicators: LEDs for Power (PWR), Transmit Data (TD), Receive Data (RD), RTS, CTS, DSR, SG
- Operating Temperature: -25°C to +70°C (-13°F to +158°F)
- Mounting: 35 mm DIN-rail mount

| Brand | WESTERMO |
|---|---|
| Model | MD-45 LV |
GENERAL DELIVERY INFORMATION
Thank you for visiting and shopping at www.zxanhyd.com. Following are the terms and conditions for the Shipping Policy for ZXAN Hydraulic.
Orders will be processed and shipping during standard working hours (0830 – 1730 BST) Monday to Friday (excluding Bank Holidays)., are processed and despatched on the same business day. If we are experiencing a high volume of orders, shipments may be delayed by 1-2 Days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
NTERNATIONAL DELIVERY RATES & ESTIMATES
Shipping charges for your order will depend on weight and country the order is to be shipped to. All cost will be calculated and displayed at checkout. All orders for delivery within the Asia will arrive on a 2-5 day delivery service depending on Country location. All shipments outside the Asia will arrive on a 3–7-day delivery service depending on Country location. Please check for accurate delivery times with our Sales department. If you Parcel has not arrived within the time expected please do not hesitate to contact us. Please ensure the ship to address you type during checkout is correct. We are not responsible for any wrong or undeliverable addresses.
CUSTOMS, DUTIES AND TAXES
Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling cost. These charges are the buyer’s responsibility as we are only charging the transportation fee for your order. You may check with your country’s customs office to determine if there will be additional costs. The buyer is responsible for obtaining information regarding their country’s laws, regulations, and restrictions that may apply when purchasing our products. By placing an international order (shipping outside of the China) the buyer is responsible for abiding by their country’s laws, regulations, and restrictions. If product is seized and destroyed by customs, we will NOT be responsible for the losses, product, or shipping refunds.
SHIPMENT CONFIRMATION & ORDER TRACKING
You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.
WORKING CLOSELY WITH TOP CARRIER EXPERTS
We use some of the top carrier companies in the world, although you can use your own carrier to collect the order. All deliveries require a signature on delivery. Below are our main carrier companies.

DAMAGES
ZXAN Hydraulic is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
RETURNS POLICY
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.

