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DATAFORTH LDM30 General Purpose RS-232 Line Driver
DATAFORTH LDM30 General Purpose RS-232 Line Driver
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The LDM30 series is designed for full-duplex, asynchronous operation over two, DC-continuity, non-loaded, twisted-wire pairs. Through special high-speed optically-coupled circuits they may communicate at data rates up to 57,600 baud. A self-powered model and a host-powered model are available. The self-powered unit uses 12VAC from a wall-mounted transformer while the host-powered unit takes ±DC power from pins 9 and 10 of the RS-232 connector. The line driver circuits - and, consequently, the host device - are protected from electrical transients due to lightning strikes or operation of heavy industrial equipment.
Each device features a convenient Data-Communication Equipment (DCE) to Data-Terminal Equipment (DTE) switch which reverses pins 2 and 3 of the RS-232 connector. For installation and troubleshooting, each unit has diagnostic Light-Emitting Diodes (LEDs) on the transmit and receive lines.
The RS-232 connector may be ordered as a male or female 25-pin connector. Field connection is made through a modern, solderless, screw-termination assembly. Alternatively, a convenient four-wire modular phone jack (RJ-11) is available.
Features
- DC to 57,600 Baud
- Optical Isolation
- Surge Protectors
- LED Diagnostic Indicators
- Operation to 3 Miles (5km) at 9600 Baud, 1 Mile (1.7km) at 19,200, 0.5 Miles (0.8km) at 57,600
- Four-Wire Full Duplex, Two-Wire Simplex
- Self-Powered or Host-Powered
- Selection of Connectors
- Wide Operating Temperature Range, 0 to +70°C
- CE Compliant
Block Diagram
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We help businesses, engineers, and tech enthusiasts access premium products at a fraction of the original price — always tested and verified.
Every item undergoes a thorough functionality check before shipping.
That means you get “as-new” performance for up to 70% less than retail price. Then it is difficult to justify the purchase of a brand new HMI, IoT or Measurement device.
- Always tested and verified.
- Always fast delivery.
- Always warranty & 30-day return policy.
Sustainability & Social Impact
Most of a product’s environmental footprint is created during manufacturing — from CO₂ emissions to water consumption and raw material waste. By giving surplus and demo units a second life, you help cut e-waste, reduce emissions, and save valuable resources.
But impact goes beyond the environment. Each year we proudly donate a portion of our revenue to Stockholm Stadsmission, supporting people in need. With every purchase, you make a choice that’s better for the planet — and better for society.
Everything You Need to Know Before Buying from Outlecta
FAQs
What kind of products does Outlecta offer?
We specialize in surplus and demo units within HMI, IoT, and measurement technology from trusted industrial brands. All items are fully tested and verified.
Are the products new or used?
Most items are surplus stock, demo equipment, or unused overstock from manufacturers and integrators. They perform like new but come at outlet pricing.
Do products come with a warranty?
Yes — all Outlecta products include a 12-month warranty and a 30-day return policy for peace of mind.
How much can I save compared to buying new?
Customers typically save 30–70% compared to original retail prices, while still getting full industrial quality and performance.
How does buying from Outlecta help the environment?
Extending the lifetime of technology reduces CO₂ emissions, raw material extraction, and e-waste. Every purchase contributes to a more sustainable industry.
Do you provide shipping internationally?
Yes, Outlecta ships worldwide. Delivery times and shipping costs vary depending on location, but we always ensure fast and secure handling.
Can companies sell surplus hardware to Outlecta?
Absolutely. We actively buy surplus and overstock from businesses. Contact us to discuss how we can help you free up capital and reduce waste.
How do I know if a product will fit my application?
Our product descriptions include detailed specifications. If you need support, our team can guide you to the right HMI, IoT, or measurement solution.
What payment options do you offer?
We support major credit cards, PayPal, and international transfers. For B2B customers, invoice and custom arrangements are also possible.
Does Outlecta give back to society?
Yes — every Christmas, a portion of our revenue is donated through our parent company, Telac Elektronik, to Stockholm Stadsmission in support of children in vulnerable situations.
By choosing Outlecta, you help us give technology a second life and bring joy to those who need it most.