By: Nitek
Video Transmission Solutions
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
RS422 Line Driver-Data Extender

The DL1142 RS422 Line Driver-Data Extender is designed for operation over category cabling and standard 24 AWG telephone pairs. This system allows you to use unshielded twisted pair cable making it unnecessary to use 18 AWG shielded pairs. The unit works equally well over existing communication cables, computer network spare pairs or new cable installations. A highly balanced output design assures that the system will not interfere with other equipment on the network. The DL1142 is designed for easy connection to standard security equipment, including keyboards, matrixes, P/T/Z systems, access control systems, CPU units, etc. The DL1142 is a single unit that connects to twisted pair wires and data via a screw less terminal block for 14 to 26 AWG wires. This unit can be installed at the data source or up to 4,000 feet away. The DL1142 outputs a data signal that will go for an additional 12,000 feet and allows up to 32 more data devices to be connected to it.

DL1142 features include:

  • EIA standard input and output
  • Data speeds of 64K baud up to 12,000 feet
  • Built-in surge suppression
  • Balanced communication output can be run in the
  • Same cable with telephone, video and other
  • Computer signals
  • Screw less terminal blocks allow easy connection to any wire type from 14 to 26 AWG
  • RoHS COMPLIANT 2002/95/EC



1.1″ H x 2.6″ W x 4.3″ D

Power Requirements

14-18 VDC @140mA (wall transformer included)


EIA standard data


Amplified data to meet and work with all EIA standard equipment to 3600 meters

Surge Protection

Built-in surge suppression is provided when earth ground connection is used

Temperature Range

-20C to +65C

Humidity Range

0 to 98%, non-condensing

Enclosure Material

Black, ABC flame retardant plastic

Shipping Weight

1 lb

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Prices and specifications subject to change without notice.