BLACK BOX RS-232 - Model TL 553A R3 4 PORT DATA SHARER connection to 4 devices - $50 - (Henderson, TN)
BLACK BOX RS-232 - Model TL 553A R3 4 PORT DATA SHARER ALLOWS CONNECTION TO 4 DEVICES This Black Box RS 232, Model TL 553A-R3 4 port Data Sharer will allow you to connect four devices to a single modem and phone line. The RS-232 Data Sharer features transparent operation up to 64 kbps and convenient LED monitoring. Front-panel switches enable and disable RTS on each input port. The Data Sharer features anti-streaming circuitry to lock out any port the instant it begins to stream. On this 4 port model, hardware prioritized scanning lets the most frequently used channels go first. The RS-232 Data Sharer is compatible with various popular IBM communications protocols, such as half-duplex Bisynchronous Communication and Synchronous Data Link Control (SDLC).This is a used Black Box from a local 911 Call Center and was surplused to make way for newer equipment. It comes from a working, smoke & dust free environment. I have 2 identical units for sale. Ships in a well padded USPS Priority Large Flat Rate box. FedEx is a little cheaper but has a higher rate of damage to my items. It does not come with the instruction book or any extra cords or cables.This listing is for 1 unit2 Units available Serial #12132345451 & #1215345368.
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From ebay.com - 1 month ago