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Telecommunication & Network Systems

Hitachi

Gigabit PON System AMN1220 Family : OLT

Overview

This single-shelf rack-mounted solution accommodates G-PON lines at rates up to 2.4Gbit/s. At the central office or head-end location, the OLT connects to a switch, router or content server through GbE interfaces.

Benefits

Compliant with the ITU-T G.984 Standards

  • Compliant with ITU-T G.984, including G-PON Encapsulation Mode (GEM)
  • GEM allows native transport of TDM circuits (DS1, OC-3) and Ethernet transport of data
  • Maximum flexibility in implementing FTTP solutions as applications andservices

Flexible Traffic Management and Consolidation

  • Hybrid Layer 2/3 + TDM switch fabric

Dense design

  • Up to 32 PON interfaces per OLT shelf
  • Integrated switch fabric on OLT shelf

Robust bandwidth management

  • Per-flow QoS and bandwidth control
  • VLAN support (translation/transparent transport)
  • Full suite of traffic management functions
  • Integrated IGMP
  • Scalable switching capacity (24Gbit/s, 48Gbit/s, 96Gbit/s)

Redundancy

  • 1:1/1+1 for controller, clock, switch, TDM and voice gateway interfaces
  • Link aggregation for Ethernet

Economical growth path

  • Populate 1/2 of shelf
  • Add second set of switch and PON interface circuit packs as needed

Network/Trunk side interfaces

  • GbE with pluggable optics (upgradeable to 10GbE)
  • DS1 TDM and voice gateway with GR-303 and TR-08 support (redundant)
  • OC-3 TDM with pluggable optics (redundant)

Specifications

Optical interface
(between OLT and remote ONT)		 Transmission method FSAN standard G-PON
(ITU-T G.984.1, G.984.2, G.984.3, G.984.4)
Transmission speed (max) Downstream: 2.488Gbit/s
Upstream: 1.244Gbit/s
Logical speed (per user) 10/100/1000Mbit/s
Bandwidth management Bandwidth can be set in 64kbit/s increments across the PON interface
Connection cable Single-mode optical fibre
Connector SC-PC
Wavelength Downstream: 1,490nm
Upstream: 1,310nm
Transmission distance 20km max
Transmit/Receive characteristics, Class B optics: Tx launch power: +5dBm min; +9dBm max
Rx min sensitivity: -28dBm; min overload -7dBm
Transmit/Receive characteristics, Class B+ optics: Tx launch power: +1.5dBm min; +5dBm max
Rx min sensitivity: -28dBm; min overload -8dBm
Number of lines 32 max per OLT shelf (2 per PON interface card)
Number of branches (users) 32 max per line (1,024 per OLT)
Network interface,
Gigabit Ethernet		 Physical interface 1000BASE-SX/LX/ZX
Connector LC (SFP)
Number of interfaces 16 max (4 per GbE card × 4 cards)
Network interface,
TDM (DS1)		 Physical interface 1.544Mbit/s (DS1)
Connector Champ 28
Number of interfaces 112 max (28 per circuit pack × 4)
Voice protocol support GR-303/TR-08 (optional)
Management interface Protocol TL-1
Interface 10BASE-T
Connection cable UTP CAT-5
Connector RJ-45
Number of ports 4
Serial interfaces 2 RS232Cs
Power Power supply -40.5 to -57.5VDC
Power consumption 1,336W max
Cooling Fan
Physical dimensions External dimensions (W × D × H) 577mm × 584mm × 260mm
Rack mounting 23-inch rack mountable
Mass 49kg max
Environmental Operating temperature range 5 to 40℃
Humidity 5 to 85% RH, no condensation
Compliance UL, FCC, NEBS

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AMN1220 Family
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