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Newbridge-Alcatel Specials
90-9738-01 DMM-3 GEN 1119.0 CLEI

Downloadable Memory Module daughter card, Requires System Control Card
(90-0667-01 or 90- 0667-04/05/09 mother card. Supports Software downloading.

90-9740-01 - DMM-3 GEN 1119.0

Downloadable Memory Module daughter card

90-3669-03 - PWR TRAY -48/60VDC CLEI

DC dual input power shelf with front panel indicators displaying power supply status and alarms. Does not contain a power supply. Can accommodate one or two PWR SUPPLY 48/60VDC (90-9524-02) or one power supply and one Mainstreet RINGER PSU (90-5946-01).
90-4927-01 - 28LC LINE CARD 6PT

Includes redundant power supply dependant on the number of high speed interface cards and peripheral shelves, Quantity two needed per Dual PSU and DS3 Protected Pair.

Alcatel's 275x MainStreet Family of Data Termination Units  

The 275X MainStreet is a series of high performance DTUs that will replace the 2600 MainStreet and 2700 MainStreet DTUs.

The new 275x MainStreet DTUs have additional features not supported by
the 2600 and 2700 DTUs including

  • Line Interface & port redundancy

  • Many new line monitoring & diagnostic features

As a bonus, the value- added 275x DTU are priced the same as the 2700 DTUs.
275x MainStreet DTU at a Glance
Three DTUs for 3 different aggregate interfaces:


Maximum Loop (Km/mi)

Maximum Speed (kb/s)

Aggregate Interfaces




two V.24




two V.21




two V.35




275X MainStreet Considerations

The complete 275X MainStreet series of DTUs are available
in Release X118-HO-00 or above and in the Alcatel 5620 NM Release 4.1

The 2751/2753 MainStreet DTU are fully managed with release 7.1 and the Alcatel 7.15620 NM Release 3.3

The 2752 MainStreet is fully managed release 8.0
and the Alcatel 5620 NM Release 4.1
Advanced line monitoring is available on the 27LC2/27LC3, but the 2B1Q line card does not support this feature.
2700 MainStreet power supplies are not compatible with the 275x,
the 275x MainStreet DTUs use the same power supply as the 2801 MainStreet HDSL DTU.

90-0531-03/04 DTU shelf & integral power are not compatible with the 275x MainStreet DTU

90-0531-01/02 DTU Shelf is compatible with the 275x MainStreet DTUs.

Support for 275x DTUs on the 3612 MainStreet Narrowband Multiplexer (NBM), 3626 MainStreet Intelligent T1 Channel bank (ICB) & 3630 MainStreet Primary Rate Multiplexer (PRM) products is available.
The redundancy feature is not available on 3612 NBM, 2624 ICB and 3630 PRM products.

Our website is built on the principle of simplicity. We easily display the model and part numbers to help you find what you are looking for quickly & efficiently. We want you to find the product that you require from 3Com, US Robotics, Newbridge, Mainstreet 3600, UDS, Adtran and many, many more. You can browse through or simply search for a Model or Part Number. If you still  cannot find what you are searching for, feel free to call us at 800-663-1141 or e-mail us at sales@nationaldatamux.com.

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