NTD12 Dual-port DTI/PRI card description and installation
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ISDN PRI Installation
Hardware required for DDP configuration
The following hardware is required when configuring the NT5D12 DDP on
Meridian 1 Options 21/21E, 51/51C, 61/61C, 71, and 81/81C, and Meridian
SL-1 STE, RT, XT, and NT systems.
Note:
The NT5D12 DDP card hardware design uses a B57 ASIC E1/T1
framer. The carrier specifications comply with the ANSI TI.403
specification. The NT5D12 provides an interface to the 1.5 Mbps
external digital line either directly or through an office repeater, Line
Terminating Unit (LTU), or Channel Service Unit (CSU).
DTI/PRI
— one NT5D12 DDP
D-Channel Interface
Either of the following:
Note:
Either the DCHI card, the MSDL, or the DDP card may be
installed first. However, DDP loops must be configured in software
before defining DCH links.
— one NT6D80 MSDL
or optionally, as a plug-on
— one NTBK51AA Downloadable D-Channel daughterboard
or optionally, an external DCHI card
— one QPC757 DCHI
Clock Controller
— QPC471/QPC775 Clock Controller(s)