D-Series Industrial Dial-up Modem

  • Metal enclosure, stand alone or rack mounting
  • Industrial temperature rating (-40 to +70C)
  • Two-wire dial-up modem
  • 56 K (V.90) modem
  • DB-25 serial asynchronous interface
  • LEDs for Power, TxD, RxD, DTR, DCD
  • Ideal for remote data collection applications, SCADA, back-up links, and remote controls.
  • Powered by 9,12,24,-48 VDC, or 120/240 VAC (external wall mount AC supply standard)
  • Current production, current stock


Indicators (front panel)

Download the Manual



The D-Series is an industrial dial-up 56 Kbps V.90 modem. The modem can be powered with an external wall mount power supply, or can be powered by a 12, 24, or -48 volt dc supply. A rack front is available for the metal case, so it can be easily rack mounted with one, two or three modems per 1U rack height.

Applications for the D-Series modems include those industrial strength applications where a rack mounting is required. a metal enclosure is required, or where the power source available is DC, rather than an AC wall outlet. It is ideal for telco installation, SCADA remote sites, or ISP POP locations. This is a current production product and DCB support is long-term.

These are not repackaged consumer grade modems. Designed from the ground up for our industrial customers, they are also more reliable on marginal phone lines than commonly used "retail store" modems.

The D-series modems are avialable in domestic (USA) or international versions with agency approval for most contries.

A unique optional version is the "Processor" model D-series modem. This unit adds an additional processor to the modem that allows unique command sets to be emulated or programmed into the modem. Most often used to emulate command sets from obsolete modems or other devices, this is a custom feature that requires factory programming for the required changes and volume commitment.



Meets V.90 Standard and government agency approvals

Indicators (front panel)




Rear View of D Series Modem (AC Version)

Rack Mount Bezels


Download the Short Form Manual
Download the Command Reference Manual

Questions? Phone us toll free at 800-432-2638

Item Number Description Price Buy Now!
D-V.90 V.90 Modem (V.90) $ 336 Qty:
D-V.90/12VDC V.90 Modem (V.90) with 9-18 VDC power input $ 411 Qty:
D-V.90/24VDC V.90 Modem (V.90) with 18-36 VDC power input $ 411 Qty:
D-V.90/48VDC V.90 Modem (V.90) with 36-72 VDC power input $ 411 Qty:
9501030 External 125 VDC power supply for standard V.90 Modem $ 125 Qty:
9902096 1U Rack Mount Bezel for one modem $ 30 Qty:
9902095 1U 3-unit Rack Mount $ 75 Qty:
9801009 PC 9-Pin (DE-9S) to Modem DB-25 cable, 6 feet $ 16 Qty:

Data Comm for Business Inc.
2949 County Road 1000 E
Dewey, Il 61840
Voice: 217-897-6600
Toll Free: 800-4-DCB-NET
Toll Free: 800-432-2638
Email: Contact Page
Web: www.dcbnet.com
Fax: 217-897-8023
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