NT2X05AC and NT2X48AA

TruePulse is looking to purchase NT2X05AC and NT2X48AA circuit packs for the Nortel DMS-100 switch.

The NT2X05AC, HECI code ENPQAW2, is a DMS-100 LM Power Pack.  You may also be familiar with it as a Genband NT2X05AC.  The line module (LM) power pack with improved grounding card provides a regulated 24-V dc power supply and operates as a ringing generator in LMs and remote line modules (RLM) in DMS-100 equipment.

The NT2X05AC line module (LM) power pack with improved grounding card.

provides a regulated 24V dc power supply, and also operates as a ringing generator in LMs and remote line modules (RLM) in DMS-100 equipment.

Under control of a NT2X27 ringing generator interface, the NT2X05AC provides a programmable voltage source. The source supplies ac or dc outputs over a range of frequencies and voltages. The card prevents noise in NT6X21AA or NT6X21AB business set line cards when the following cards combine:

• LM and line concentrating module (LCM)

• RLM and remote line concentrating module (RLCM)

The NT2X48AA, HECI code ENDRN20, is a DMS-100 Digitial 4-CH Receiver.  You may alternately know it as a Genband NT2X48AA. 

The NT2X48AA digital four-channel multifrequency receiver card receives pulse code modulation (PCM) data from up to four channels. The NT2X48AA detects standard multifrequency (MF) tones on the four channels. It decodes the tones and provides 8-bit binary codes to indicate the tones received.  The NT2X48AA occupies two card positions in a maintenance trunk module (MTM) or a trunk module (TM).Genband, now Ribbon Communications, no longer supports the DMS-100.In addition to the NT2X05AC and NT2X48AA, we are interested in other Nortel DMS-100 circuit packs.  Furthermore, we are looking for circuit packs for other voice switches, such as the Ericsson VSE System Switch, the Definity DCSS 240E, Lucent 5ESS and the GTE GTD-5.