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  • Black Box
  • 37506638
  • TL554AE-R3
  • Temporarily Out-of-Stock
  • Call for next available delivery
Ordering Information
  • Supports RS-232 Networking
With RS-232 Data Sharers from Black Box, you can cut extra modem costs and leased-line charges for your RS-232 system. Simply connect up to two, four, or eight RS-232 devices to one modem and phone line!

All RS-232 Data Sharers feature transparent operation up to 64 kbps and convenient LED monitoring. Front-panel switches enable and disable RTS on each input port.

All models feature antistreaming circuitry to lock out any port the instant it begins to stream. On the 4- and 8-port models, hardware-prioritized scanning lets the most frequently used channels go first.

The RS-232 Data Sharers are compatible with various popular IBM communications protocols, such as half-duplex Bisynchronous Communication and Synchronous Data Link Control (SDLC).