SW29716 Databus Network Tester

Southwest Inter Connect Inc. has developed a Databus Network Tester (part number SW29716) to offer as replacement for the incumbent DBNT (S2476N).

Download Spec Sheet

Hardware

The DBNT (SW29716) comprises two self-contained, battery powered units:

  1. Transmitter Unit (TXU)
  2. Receiver Unit (RXU)

Both TXU and RXU are housed in a ruggedized aluminum housing containing PCB’s, battery pack, keyboard and Liquid Crystal Display.

External power is connected via a D38999 interface and test connections via BJ79 twin axial connector. The housing also contains a pressure equalization valve to meet air transportation requirements.

Features

  • The enclosure, display, keyboard and electrical interfaces have been designed to meet the requirements of CS235
  • Interface connections replicate the USN’s incumbent DBNT (S2476N) allowing continued use of all existing interface cable sets.
  • The TXU electronics provide a composite signal comprising a high frequency component for insertion loss measurement and wiring fault detection with periodic bursts of a lower frequency component for wiring polarity detection.
  • The LCD indicates battery charge state, and four lines, 20 characters/line, of text providing test and operator information.
  • The RXU electronics controls mode of operation and the LCD indicates battery charge state, and four lines, 20 characters/line, of text providing test and operator information.
  • The PCB’s and electronic components employ latest generation surface mount technology ensuring reliability and security of supply for many years.

Power Supply, and Charging

  • The TXU and RXU are powered by internal battery packs. Each battery pack has a nominal voltage of 10.8 VDC and can power the TXU and RXU for a minimum of 12 hours under test conditions.
  • The batteries can be charged from any 18 to 36 VDC utility supply. A Universal AC power supply capable of charging both units simultaneously is supplied with the TXU and RXU.
  • The TXU and RXU can be powered from any aircraft 24VDC utility supply with the addition of a platform specific power cable.
  • Charging of the TXU and RXU is inhibited when connected to an aircraft utility power supply.

Calibration

  • The equipment comes with a calibration pad which should be used daily prior to commencement of testing. An Operational Capability and Health Check should be carried out ‘on-condition’.

Other

For more information, please contact:

  • US (ph) (682) 385-9751
  • (fax) (682) 385-9752

Southwest Inter Connect Inc. is partnered with Blore Edwards Ltd. to supply the SW29716 databus network tester to customers in the UK and Europe. Please contact:

  • UK (ph) +44 (0) 1685 882043
  • (fax)+44 (0) 1685 878743