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Data Sharing

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Black Box USA TL158A-R4 Data Broadcast Unit DB25
Send your training demo to eight PCs—simultaneously.


  • All ports are DTE/DCE switch-selectable.
  • Put one between your async CPU and up to eight terminals. Students see everything on your screen.
  • Ideal for polling applications or other controlled environments.
  • DB25 model is rackmountable and enables you to connect each port directly and quickly to slave ports.
  • Use RJ-11 version in modular wiring environments. Order an optional RJ Adapter Kit to connect it to premise DTEs equipped with DB25 connectors.


  • Flow Control — Software only, transparent to speed and data
  • Protocol — Async
  • Speed — Transparent
  • User Channels — 8
  • Interface — RS-232
  • Connectors — TL158A-R4: (9) DB25 F; TL159A: (9) RJ-11
  • Power — 115 VAC, 60 Hz
  • Size — TL158A-R4: 2.3"H x 12.2"W x 11.1"D (5.8 x 31 x 28.2 cm); TL159A: 1.5"H x 5.5"W x 8.5"D (3.8 x 14 x 21.6 cm)
  • Weight —TL158A-R4: 8.3 lb. (3.8 kg); TL159A: 2.4 lb. (1.1 kg)

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