Nortel Networks DCT1900 - Manual (Page 48)

Technical Product Manual - DCT1900
System Description, Radio Exchange Boards
4-10 System-DCT1900/R8/mw
© 2000-2005
4.10 Digital 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.
Fig. 4-9 DLU
4.11 Digital Line Unit - DLU (AWS1024) Meridian Board
4.12 Digital Line Unit - DLU (AWS1025) Norstar Board
4.13 Digital Line Unit - DLU (AWS1026) Lucent Board
Line 12
Line 1
DLC
12
BC
DLC
1
1:1 Digital line
1:1 Digital line