Cookies on the OMEGA websites
We use cookies on this website, these cookies are essential for the website to work correctly.If you continue without changing your settings, we'll assume that you are happy to receive all cookies on this website.To find out more information about these cookies please click here.
CLOSE
Basket  |  Contact  |  Help  | 
Free Phone 0800 488 488
International+44(0) 161 777 6611

Fully Isolated Limited Distance Modem

LDM70 Series

Fully Isolated Limited Distance Modem | LDM70 Series

Fully Isolated Limited Distance Modem

£197.00 LDM70-S

CE
  • DC to 57,600 Baud
  • Complete Isolation with Optical Couplers and Power DC-to-DC Converter
  • Data Terminal Ready, Carrier Detect Handshake Without Extra Wires
  • Surge Protectors
  • Four LED Diagnostic Indicators
  • Operation to 3 Miles (5 KM) at 9600 Baud, 1 Mile (1.7 KM) at 19,200, 0.5 Miles (0.8 KM) at 57,600
  • Four-Wire Full Duplex, Two-Wire Simplex
  • Self-Powered or Host-Powered
  • Wide Operating Temperature Range: 0 to +70°C
Communication Products and Converters - View related products

Description

The LDM70 Series of products is designed to allow RS-232 devices to be connected over distances sufficient to cover any industrial or institutional complex of buildings.

The LDM70 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 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 12 Vac 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.

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. In addition, LEDs indicate valid carrier detect and data terminal ready. The RS-232 connection is through a 25-pin D sockect. Field connection is made through a modern, solderless, screw-termination assembly.
Place Order(Specify Model Number)
Part Number/ Desc.
Qty
Description
Quick Ship
LDM70-S
£197.00
Availability: 7 weeks
 
Fully isolated limited distance modem with 25 pin female RS-232 connector, screw termination field connector, host-powered
Quick Ship
LDM70-ST
£217.00
Availability: 7 weeks
 
Fully isolated limited distance modem with 25 pin female RS-232 connector, screw termination field connector, transformer powered
All amounts shown in EUR, GBP, or USD
Note: Includes operator’s manual. Transformer powered units also include ac wall mount transformer.