Руководство По Установке для Cisco Cisco ONS 15454 SDH Multiservice Provisioning Platform (MSPP)

Installing ONS 15454 SDH DS3iN-12 Cards

78-14604-01

DS3iN-12 Card

Figure 2

DS3iN-12 block diagram

DS3iN-12 Card Specifications

•

DS3iN-12 Input

–

Bit Rate: 44.736 MBits/s (Mbps) + 20 ppm

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Frame Format: ITU-T G.704, ITU-T G.752 / DS-3 ANSI T1.107-1988

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Line Code: B3ZS

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Termination: Unbalanced coaxial cable

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Input Impedance: 75 ohms + 5%

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Cable Loss: Max 137 m (450 ft.) 734A, RG59, 728A / Max 24 m (79 ft.) RG179

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AIS: ITU-T G.704-compliant

•

DS3iN-12 Output

–

Bit Rate: 44.736 MBits/s (Mbps) + 20 ppm

–

Frame Format: ITU-T G.704 , ITU-T G.752 / DS-3 ANSI T1.107-1988

–

Line Code: B3ZS

–

Termination: Unbalanced coaxial cable

–

Output Impedance: 75 ohms + 5%

–

AIS: ITU-T G.704-compliant

–

Power Level: -1.8 - +5.7 dBm (The power level is for a signal of all ones and is measured at a
center frequency of 22.368 MHz (3 + 1 -kHz) bandwidth.)

55292

a
c
k
p

a
n
e

DS3

ASIC

Flash

uP bus

SDRAM

BTC

ASIC

Line

Interface

Unit #1

main DS3-m1

protect DS3-p1

Line

Interface

Unit #1

main DS3-m12

protect DS3-p12

Processor

OHP

FPGA

BERT
FPGA