SM265B and SM267B

January 19, 2026

by Peter Szoke

TruePulse currently has one each of the SM265B and SM267B circuit boards available for sale. They are used pulls that have been tested.

The SM265B and SM267B are switching modules used in the 5ESS, a Class 5 switch develop by AT&T in the 1980s! Subsequently sold under Lucent, Alcatel-Lucent, and even Nokia brands. The 5ESS complements the 4ESS, a Class 4 switch.

SM265B has a HECI LMPQ04A, and comes with various Comcode options. SM267B has a HECI LMPQ04U, and also comes with various Comcode options.

In addition to the 5ESS, TruePulse buys and sells various other Lucent platforms, including the DDM-2000, the FT-2000, the Galaxy, the DACS IV and the Lambda Unite. Please let us know your interests.

TruePulse Blog

ERB2B and ERB3B

May 1, 2026

TruePulse is searching for ERB2B and ERB3B for the Lucent DACS IV. You may alternately be familiar with the boards as the AT&T ERB2B and […]

Rogers Communications offering buy-outs to employees

April 27, 2026

According to an article published in the Globe and Mail today, Rogers Communications will be offering buyouts to half of its work force. Exclusions apply […]

NTN442AB and NTN442AJ

April 20, 2026

TruePulse is actively seeking Nortel Optera 3500 OC-48 boards NTN442AB and NTN442AJ. They may also be known as the Ciena OM3500 NTN442AB and NTN442AJ. The […]

Ciena NTK553RA

April 9, 2026

TruePulse would like to acquire NTK553RA circuit packs for the Ciena 6500 system. You may possibly also know it as a Nortel OME 6500 NTK553RA. […]

24G-U and 29G-U

March 23, 2026

TruePulse is looking to purchase 24G-U and 29G-U for the Lucent DDM-2000. You may also be familiar with the boards as the Alcatel 24G-U and […]

1 2 3 … 19 Next »

See More Blog Posts

TruePulse Inc.
Richmond Hill, ON
Canada

Telephone: 416-728-4998
Email: sales@truepulse.com

Website powered by Wenex Media Works