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Modem 288 - Industrial Async Dial-up or Leased-Line V.34 Modem, AC Power

Industrial-strength communications at 28.8 kbps.


Limited Quantity In Stock
Typically Ships within One Week
Extended Double Diamond™ Warranty Available (3 Additional Year)

*Required field

Product Features

  • Use this sturdy, temperature-tolerant modem for your industrial applications.
  • Durable metal enclosure wards off signal-disrupting EMI/RFI signals


  • V.34 trellis encoding, error correction, and data compression support throughput rates up to 57.6 kbps.
  • Operates via dialup or leased phone lines. Or hardwire it as a point-to-point line driver for links up to 20 miles (32 km).
  • Operates reliably at temperatures of 32 to 140° F (0 to 60° C).
  • Modules (MD3315–MD3316) are available for 2-wire RS-485 or 4-wire RS-422 interfaces.
  • Steel bolt-mount flange anchors the modem for use in rough industrial settings.
  • Easily managed from a central site.

The BLACK BOX® Industrial Modem 288 has a durable design that supports communications in application environments with motors, generators, and air-conditioning compressors—all of which emit EMI. And it endures temperatures from 32 to 140° F (0 to 60° C).

Use it for remote data-acquisition or process-control applications where a standalone device must ensure throughput. It monitors activity anywhere that ordinary modems can't go.

You can also send data across long 2-wire leased- or dialup-line links. Or hardwire the modem as a line driver for point-to-point connections up to 20 miles (32.1 km).

Tech Specs

Connectors (2) RJ-11, (1) DB25 F
Interface RS-232 (or RS-422 or RS-485 with optional modules)
Operating Environment 32 to 140° F (0 to 60° C)
Operation Dialup or 2-wire leased line duplex
Power 115-VAC, 60-Hz wallmount adapter (included)
Protocol Asynchronous
Size 1.4"H x 7.5"W x 11.3"D (3.6 x 19.1 x 28.7 cm)
Speed 28.8 kbps (up to 115.2 kbps DTE)
Weight 4.5 lb. (2 kg)
This product works with:

Product works with:

  • RS-485 Modem 144/288 Modules for Industrial Modem 288 (MD3315–MD3316)
  • RS-232 Extended Distance/Quiet Cable (EBN25C)
  • PROCOMM PLUS® 32 Quarterdeck Software (14-00-00397)

* 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

Extended 1 Year Warranty Available

Protect your purchase with an additional 1 Year Double Diamond™ warranty!
Cost: $147.39

Extended 3 Year Warranty Available

Protect your purchase with an additional 3 Year Double Diamond™ warranty!
Cost: $294.77


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 Industrial async dialup or leased line V.34 modem AC Power 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.