LDM70

LDM70-PLDM70-S

ISOLATED RS-232 LINE DRIVER

LDM70 - 1 Port Fully Isolated RS-232 Line Driver

RoHS

This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.

CE

CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.

LDM70 Isolated RS-232 Line Driver
Featured in:Dataforth Communications

Request a quote for this product

Enquiry information  
Your name  
Company name  
Email address  
Telephone  

Add to quote list

Add the LDM70 to your quote list to send to our sales team for a quote on all your chosen products
Product
Availability
LDM70-P

LDM70 with male DB25 connector

LDM70-S

LDM70 with female DB25 connector

Product
Availability
PT3

12V AC US Power Supply

PT3E

12V AC European Power Supply

* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)
Industry insight.
Network know-how.
Impulse engineers and specialists have the industry insight and network know-how to design forward looking solutions for wide-ranging environments.
Discover our Industrial IoT capabilities

LDM70 overview

Description
Downloads

The LDM70 isolated RS-232  line driver is designed to allow video display terminals (VDTs) and other RS-232 devices to be connected over distances sufficient to cover any industrial or institutional complex of buildings. These limited distance modems feature a rugged aluminum enclosure small enough to mount on the back panel of VDT units, saving valuable desk and floor space.

The LDM70 line driver is designed for full duplex, asynchronous operation over two DC-continuity, non-loaded, twisted-wire pairs. Through special highspeed optically coupled circuits, they may communicate at data rates up to 57,600 baud. A handshake operation is implemented over the same two-wire pairs. A self-powered model and a host-powered model are available. The self-powered unit uses 12V AC from a wall-mounted transformer, while the host-powered unit takes ± DC power from pins 9 and 10 of the RS-232 connector. The modem circuits - and, consequently, the host device - are protected from electrical transients due to lightning strikes or operation of heavy industrial equipment.

Features
  • Industry leading RS-232 serial line driver from Dataforth
  • Ideal for connecting RS-232 devices across long distances
  • Offers protection for your serial devices against power spikes and surges
  • Common mode isolation up to 1500V DC surge
  • For data transmission up to 12 miles (20km)
  • Full 4-wire duplex or 2-wire simplex mode available
  • Available with a pinned male DB25 connector (LDM70-P) or a socketed female DB25 connector (LDM70-S)
  • Mounting : In-line Plug in
  • Port : RS-232
  • Common Mode Isolation : 1500V surge, 1000V continuous
  • Power : Host or External Powered
  • Baud Rate Range : 0 - 57.6Kbps
  • Max. Data Distance : 12 miles (20km)
  • Modes : 4-wire full duplex, 2-wire simplex
  • Channel Lines : TD, RD
  • Control Lines : DTR, RLSD
  • MTBF : 100,000 hrs
  • Power : 12V AC @ 120mA or ±9 to 15V DC @ 45mA
  • Operating Temperature : 0C to +70C
Enquire about the LDM70
Need more info or project pricing for the LDM70?
T: +44 (0)1782 337 800 • E: sales@impulse-embedded.co.uk
 
 
 
 
+44(0)1782 337 800
Join us for our Industrial Tech Solution Day on 16th April! BOOK NOW
+44(0)1782 337 800