Nortel Networks DCT1900 manual System Boards

Technical Product Manual - DCT1900

Product Specifications, System Boards

CHAPTER 6

System Boards

6.1Digital Trunk Unit (DTU–E1 CAS, CCS) - REX-BRD0002 or 2/ROFNB 157 13/1

Compliance to Regulations and Standards

The DTU–E1 provides 2 standard CEPT primary rate interfaces and meets the following requirements:

CE regulation

CE marking

Leased line CTR

G.703

G.704

G.823

G.732

I.431

Environmental

Temperature

Operating

Storage

Relative humidity

General Specifications Length x width

Digital Trunk Specification Number of primary rate interfaces per DTU board Bit rate

Signalling

:91/263/EEC

: (this marking is not placed on the DTU–E1 board

because the DCT1900 system is already covered by the CE marking of the cabinet)

:CTR12

:Electrical characteristics of the 2.048 Mbit/s synchronization interface

:Synchronization frame structure at 2.048 Mbit/s

:Input jitter requirements

:Characteristics of primary rate PCM multiplex equipment operating at 2.048 Mbit/s

:Primary rate layer 1

:32 to 104°F (0 to 70°C)

:-40 to 158°F (-40 to 70°C)

:20 to 80%, non condensing

13.5" x 7.7" (343 x 195.6mm)

:2

:2.048 Mbit/s

:Common Channel Signalling (CCS), using firmware set NTM/RYSNB 101 17/3

:Channel Associated Signalling (CAS), using firmware set RYS 105 664

Specs-DCT1900/R8/mw	6-1
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