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.

 

Key Features:

Ø           Redundant MPU card

Ø           Redundant STM-1 card

Ø           Distributed power supply

Ø           Up to 256 POTS per shelf

Ø           Up to 2,048 POTS per node

Ø           Support various interfaces

Ø           Support various topologies

Ø           Unified SNMP-based NMS

Ø           V5.2 and proprietary concentration

Ø           Upgradeable for future network applications

 

Specification:                                                                                                                 Power Supply:

Distributed power supply:

Ø          Distributed DC to DC converter on each board

Power Input:

Ø          DC input: -36Vdc ~ -72Vdc

Ø          Power consumption: less than 20 Watts per card, and < 400 Watts per shelf

Ø          Connector: Terminal Block

Interfaces:

155M (STM-1) SM Optical Interface:

Ø          Transmission Rate:    155.52M ± 20ppm

Ø          Wavelength:              1310nm

Ø          Transmission Range: up to 20km

Ø          Code:                       scrambled NRZ

Ø          Eye pattern, jitter and wander meet ITU-T G.703 requirement

155M MM Optical Interface: (for shelf extension)

Ø          Transmission Rate:    155.52M

Ø          Wavelength:              850nm

Ø          Transmission Range:  up to 2km

Ø          Code:                       scrambled NRZ

E1 Interface:

Ø          Transmission Rate:    2.048M ± 50 ppm

Ø          AC impedance:          Default 120 ohm, 75 ohm for option

Ø          Code:                       HDB3

Ø          Pulse mask, jitter and wander meet ITU-T G.703 requirement

LPOTS/LCPOTS Interface:

Ø          Ringing detection:                      16 ~ 60 Hz, > 40 Vrms

Ø          Metering pulse detection:            12/16KHz, > 10dBm (LCPOTS only)

Ø          Battery reversal detection delay: < 40mS (LCPOTS only)

Ø          AC impedance:                          600 ohm (900 ohm for option)

Ø          Encoding:                                  A law

Ø          VF parameter:                           meet G.712 requirements

Ø          On hook data transmission delay: < 50mS

RPOTS Interface:

Ø          Loop resistance:                        1.2k ohm (including phone-set)

Ø          Ringing generation:                    >50Vrms, 25 ± 1 Hz

Ø          Open circuit voltage:                   48Vdc

Ø          Metering pulse generation:          12/16KHz, > -2.5dBm

Ø          AC impedance:                          600 ohm (900 ohm for option)

Ø          Encoding:                                  A law

Ø          VF parameter:                           meet G.712 requirements

Ø          On hook data transmission delay: < 50mS

Maintenance Interface:

Ethernet Interface:

Ø          Meet IEEE 802.3 requirements

Ø          10/100M auto negotiation

Ø          Support half and full duplex

Ø          AC impedance:  100 ohm

Ø          Loop reach:       100m@(Cat5 or above)

RS-232 Interface:

Ø          15m @ 19.2Kbps, 8-N-1

Ø          Support full duplex

Alarm contact:

Ø          Current:            < 500mA

Ø          Voltage:            < 75Vdc

Ø          Critical, major, and minor

LED:

Ø          Green:              normal condition

Ø          Yellow:             minor alarm or warning

Ø          Red:                 critical or major alarm

Switch:

Ø          Power:      Rocket Switch

Ø          ACO:        (Alarm Cut Off) non-latched switch (push button)

Ø          Reset:       non-latched switch (push button and access by using tools)

Environmental Conditions:

        Meet ETSI EN 300 019 class 3.1E requirements

        All cards pass free drop test at 1.5 m height

        EMC: FCC part 15 Class A

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