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RS232 Data Sharer - 2-Port

Expand leased line, polled environments without adding computer ports or communications links.


Limited Quantity In Stock
Typically Ships within One Week
1 Year Double Diamond™ Warranty (Standard)

*Required field

Product Features

  • Increases network efficiency.
  • Transparent to data.
  • Fully cascadable.
  • Individual subchannel enable/disable switches.
  • 15 kV ESD protection.
  • Data rates up to 128 Kbps.
  • Synchronous and asynchronous data transmission.


Reduce line costs in your RS-232 system by using a BLACK BOX® RS-232 Data Sharer to connect two 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.

It features antistreaming circuitry to lock out any port the instant it begins to stream.

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).

Tech Specs

Clock Source External (from DCE)
Connectors (3) DB25 F
Contention Type RTS/CTS
Dimensions 2.5"H x 8.1"W x 11.3"D (6.4 x 20.6 x 28.7 cm)
Indicators (6): PWR, RTS A, RTS B, CD, CTS, RXD
Interface RS-232 (master port DTE, slave ports DCE)
Leads Supported 8, 15, 17, 20, 22
Operation Full- or half-duplex
Power 115 VAC, 60 Hz (230-VAC versions on request)
Protocol Synchronous or asynchronous
Weight 2.4 lb. (1.1 kg)
This product works with:
Product works with:
  • Adapter Cable for IBM 3174/3274 Contoller (EHM002)
  • Standard RS-232 Low-Noise Cable (ECM25T, ECM25C)
  • CSU/DSU MS (MT132V-R2)
  • Questions? Contact our FREE Tech Support.

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.



    Double Diamond Warranty Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The 2-Port RS232 Data Sharer comes with a standard 1 Year Double Diamond™ Warranty (Standard) already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.