Nortel Networks DCT1900 manual Digital Line Unit DLU REX-BRD0023 Basic Board, Dlu

Technical Product Manual - DCT1900

System Description, Radio Exchange Boards

4.10Digital Line Unit - DLU (REX-BRD0023) Basic Board

The Digital Line Unit (DLU) card is used only in standalone configurations. The card provides the DCT1900 system with the ability to deliver features such as calling party name/number, message waiting indicator, and multi-line operation to the Portable Telephone.

Each card has 12 Digital Line Circuits (DLC, see Figure 4-9), to support 12 Portable Telephones. Each line is dedicated to a specific Portable Telephone number.

The DLU is designed to interface with various PBXs, such as Nortel Meridian 1, Nortel Norstar, Lucent 75 + 85 series, as well as 8400 Definity G1, G2, G3 PBXs.

BC

DLC 12

DLC 1

Line 12

Line 1

1:1 Digital line

1:1 Digital line

Fig. 4-9 DLU

4.11Digital Line Unit - DLU (AWS1024) Meridian Board

4.12Digital Line Unit - DLU (AWS1025) Norstar Board

4.13Digital Line Unit - DLU (AWS1026) Lucent Board

4-10	System-DCT1900/R8/mw
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