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Eddies:
New Generation Digital Loop Carrier
Eddies is an
advanced access product,
which could provide diverse
service cards for different
applications. It provides
the interface between CPE
(such as telephone,
computer, etc.) and exchange
side equipment (such as
switch). It provides
interfacing, management and
time slot cross-connect
functionalities, including
TSI, TSA, concentration,
dynamic time slot
allocation, etc. With its
multiple service cards and
flexible design, it can also
support MSAN (Multi-Service
Access Node) application
effectively.
Unified SNMP based network
management system (NMS),
local craft terminal (LCT)
via RS-232, LED and alarm
contact are used as
Operation, Administration,
Maintenance and Provision (OAM&P)
interfaces for maintenance
and management personnel.
Service provider may provide
service to the subscribers
easily and efficiently by
using this platform.
Eddies supports up to 16
slots for LS (Low Speed)
cards, two MPU (Main
Processing Unit) and two HS
(High Speed) cards at
maximum. Both MPU and HS
cards can be redundant or
non-redundant.
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Key Features:
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Redundant MPU card
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Redundant STM-1 card
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Distributed power supply
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Up to 256 POTS per shelf
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Up
to 2,048 POTS per node
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Support various interfaces
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Support various topologies
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Unified SNMP-based NMS
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V5.2 and proprietary concentration
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Upgradeable
for future network applications
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Specification:
Power Supply:
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Distributed power supply:
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Distributed DC to DC converter on each board
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Power
Input:
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DC
input: -36Vdc ~ -72Vdc
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Power consumption: less than 20 Watts per card, and <
400 Watts per shelf
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Connector: Terminal Block
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Interfaces:
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155M
(STM-1) SM Optical Interface:
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Transmission Rate: 155.52M
±
20ppm
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Wavelength: 1310nm
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Transmission Range: up to 20km
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Code:
scrambled NRZ
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Eye
pattern, jitter and wander meet ITU-T G.703
requirement
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155M MM
Optical Interface: (for shelf extension)
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Transmission Rate: 155.52M
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Wavelength: 850nm
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Transmission Range: up to 2km
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Code: scrambled NRZ
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E1
Interface:
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Transmission Rate: 2.048M
±
50 ppm
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AC
impedance: Default 120 ohm, 75 ohm for option
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Code: HDB3
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Pulse mask, jitter and wander meet ITU-T G.703
requirement
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LPOTS/LCPOTS
Interface:
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Ringing detection: 16 ~ 60 Hz, >
40 Vrms
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Metering pulse detection: 12/16KHz, > 10dBm
(LCPOTS only)
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Battery reversal
detection delay: < 40mS (LCPOTS only)
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AC
impedance: 600 ohm (900 ohm
for option)
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Encoding: A law
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VF
parameter: meet G.712
requirements
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On
hook data transmission delay: < 50mS
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RPOTS
Interface:
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Loop resistance: 1.2k ohm
(including phone-set)
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Ringing generation: >50Vrms, 25
± 1
Hz
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Open circuit voltage: 48Vdc
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Metering pulse generation: 12/16KHz, >
-2.5dBm
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AC
impedance: 600 ohm (900 ohm
for option)
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Encoding: A law
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VF
parameter: meet G.712
requirements
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On
hook data transmission delay: < 50mS
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Maintenance Interface:
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Ethernet Interface:
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Meet IEEE 802.3 requirements
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10/100M auto negotiation
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Support half and full duplex
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AC
impedance: 100 ohm
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Loop reach:
100m@(Cat5 or above)
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RS-232
Interface:
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15m
@ 19.2Kbps, 8-N-1
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Support full duplex
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Alarm
contact:
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Current: < 500mA
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Voltage: < 75Vdc
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Critical, major, and minor
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LED:
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Green: normal condition
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Yellow: minor alarm or warning
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Red: critical or major alarm
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Switch:
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Power: Rocket Switch
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ACO:
(Alarm Cut Off) non-latched switch (push button)
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Reset: non-latched switch (push button and
access by using tools)
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Environmental Conditions:
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Meet ETSI EN 300 019 class 3.1E requirements
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All cards pass free drop test at 1.5 m height
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EMC: FCC part 15 Class A
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