Product Id: 19475230
Description: Black Box RS-232 Data Sharer - Concentrator - 8 ports - external
Mfr Part #: TL554AE-R3
MSRP: $942.58With 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).