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RB002

Compact Gigabit Ethernet Aggregator (RB002)

RB002 is a Gigabit Ethernet aggregator with inverse multiplexing and VLAN TAG function,it provides three gigabitEthernet interfaces (2 electrical and 1 optical Ethernet interfaces) compliant with IEEE 802.3 series standard and 2STM-1 interfaces. It can separate the Ethernet data from GE port (the carried VLAN Tagcorrespond to different VCGchannels)...
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    Overview

    RB002 is a Gigabit Ethernet aggregator with inverse multiplexing and VLAN TAG function; it provides three gigabit
    Ethernet interfaces (2 electrical and 1 optical Ethernet interfaces) compliant with IEEE 802.3 series standard and 2
    STM-1 interfaces. It can separate the Ethernet data from GE port (the carried VLAN Tag correspond to different VCG
    channels), encapsulate them into EoPDH signal, map them into E1 and then into SDH signal; in the opposite direction,
    it can de-map the Ethernet data from E1 signal, then from SDH signal, aggregate them into GE port. Thus, it can
    achieve the efficient transmission of Ethernet data over SDH network.
    RB002 is designed as a modular system, with one 16VCG Ethernet aggregation module embedded in the mainboard,
    three 16 VCG Ethernet aggregation modules pluggable, and various optional power cards to meet the various
    application requirements.
    RB002 supports single E1 mode and Multi-E1 conversion mode, and these two modes can work simultaneously. it
    support 64 VCG channels (each module supports 16 channels) at most, In single E1 conversion mode, each channel
    bandwidth is one E1; In multi-E1 conversion mode, the maximum bandwidth of each channel is 16 E1, under 1+0
    mode (when the two STM-1 interfaces are independent), the 64 VCG share 126 E1.
    RB002 can be used in the traffic convergent network, supports point-to-multipoint application; it supports NE
    management based on CLI command via RS232 and TELNET type; meanwhile, it supports SNMP_V1 and SNMP_V2
    protocol, supports network management platform RAYVIEW based on C/S architecture, which is easy for device
    configuration, management and maintenance.
    With EoPDH (Ethernet over PDH) technology compliant to ITU-T G.7041, G.7042, G.7043 and G.8040 standards,
    RB002 can communicate with products from other vendors adopting the same standards.

    Feature

    • Compact design with 1U height, 19 inch, 205mm depth, and can be installed on standard rack
    •  Optical interface
    •  Two STM-1 optical interfaces; SFP optical module (LC interface); Hot plugging
    •  The line bit rate is 155Mb/s, transmission distance is optional (depend on the SFP optical module)
    •  SFP MSA(INF-8074i), ITU-T G.695, FC-PI V2.0 standards compliable
    •  Support 1+1 optical protection and Automatic Protect Switch (APS) with the recovering time less than 50ms
    •  Provides optical loopback function, a great convenience for trouble shooting
    •  Supports Automatic Leaser Shutdown(ALS) to protect operators from hurt
    •  Supports Remote Power down Detect (RPD) function
    •  Ethernet interface
    •  One optical Gigabit Ethernet interface and two electrical Gigabit Ethernet interfaces compliant with
    • IEEE802.3 serial standard
    •  The electrical gigabit Ethernet interfaces adopt RJ45 connector, support auto-negotiation, which can work in
    • 1000M full-duplex, 100M full/half-duplex, 10M full/half-duplex mode
    •  The optical gigabit Ethernet interface adopts 1000M SFP module, which can work in 1000M full-duplex
    • mode, transmission distance is optional (depend on the SFP optical module)
    •  Proprietary technique (patent pending) adopted to prevent Ethernet frames from looping back in case of
    • unexpected optical loopback
    •  Supports unicast, multicast and broadcast frame
    •  Supports flow control and broadcast storm filtering control
    •  4K MAC address table, with optional 12s / 300s ageing time configurable, the default is 300s
    •  Supports MAC address dynamic learning function
    •  Accepts frames with length between 64 and 1552bytes (otherwise filtering)
    •  Supports port-based VLAN and IEEE802.1Q tag-based VLAN
    •  Provides performance statistic for each Ethernet interface
    •  Timing mode
    •  Tracing from internal timing source, complies with ITU-T G.813 standard
    •  Tracing from STM-1 optical line timing source (T11, T12)
    •  Timing sources can be switched over according to alarms, SSM values, frequency offset, and the preset
    • priority of the sources, or can be switched over by force directly
    •  Path Protection
    •  Supports 1+1 path protection with the recovering time less than 50ms
    •  Supports automatic protection switch and manually protection switch
    •  NE Management
    •  Supports CLI command based on RS232 (CONSOLE) port
    •  Supports CLI command based on Ethernet management (EMU) port (TELNET)
    •  Supports Simple Network Management Protocol (SNMP), compatible with V1 and V2C protocol
    •  Supports FTP protocol and firmware download online without disturbance of existing traffic
    •  Monitoring the alarms and status in real-time
    •  EoPDH remote equipment
    •  In single E1 conversion mode, it supports GFP/HDLC encapsulation; supports communication with the
    • remote RB-ME-I and RB-MEFX-I converter; supports remote management; under HDLC encapsulation, it
    • supports framed PCM31/ unframed mode
    •  In Multi-E1 conversion mode, it supports GFP encapsulation; it can communicate with the remote REOP
    • series and RB003 converter, it supports remote management
    •  Compliant to ITU-T standards
    •  GFP-F encapsulation recommendation G.7041
    •  Virtual concatenation (VCAT) and Link Capacity Adjustment Scheme (LCAS) recommendation G.7042
    •  Ethernet to nxE1 mapping recommendation G.7043
    •  Ethernet to single E1 mapping recommendation G.8040
    •  Supports hot-spare power, the power consumption is less than 20W
    •  -48V DC single power access
    •  -48V DC double power access
    •  220V AC single power access
    •  220V AC double power access
    •  -48V DC+220V AC double power access

    Application

    RB002 supports point-to-multipoint network application; the remote can be REOP series, RB003, RB-ME-I and
    RB-MEFX-I equipment, to meet the various bandwidth requirements. Each RB002 supports 126 E1s and 64 VCG
    channels at most. In the application, the Ethernet service of each remote user can be carried by different VCG
    channels, each VCG can be assigned to 1~16 E1 flexibility and the total bandwidth of the 64 VCG channels cannot be
    exceeds 126E1s. In addition, REOP4/8/16 series is a 3FE+1FX or 4FE converter with one VCG channel and 4/8/16
    E1, supports SNMP and CLI management; RB003 is a 3FE+1FX or 4FE converter with one VCG channel and 4/8/16
    E1, supports CLI management only; RB-ME-I is a single FE converter with one VCG channel and one E1;
    RB-MEFX-I is a single FX converter with one VCG channel and one E1.
    As shown in Figure.3-1, with EoPDH and VLAN technology, the remote Ethernet service can be transmitted and
    converged into the service center (Router) by RB002; RB002 also supports E1 management channel, the remote
    Ethernet management data can be transmitted by the E1 management channel and then converged into the local
    RB002, thus all the management information can be controlled by the local NMS.

     

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    Figure 1 Application

     

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