Description

BD-EOS-GE-STM1 is a dual VCG channel over STM-1 SDH Multiplexer, provides 4 gigabit Ethernet interfaces (3 copper 1000Base-T and 1 fiber Ethernet interfaces) compliant with IEEE 802.3 series standard and 2 STM-1 optical interfaces, supports 1+1 optical path protection and 2+0 mode. In 1+1 mode, the 4 Ethernet interfaces share one VCG and the bandwidth is one VC4 (139Mb/s). In 2+0 mode, the 4 Ethernet interfaces share two VCG channels and the bandwidth is two VC4. Therefore, by GFP and EoS technology, the OC3 multiplexer can realize two 139Mb/s Ethernet traffic transmission over STM-1 optical line.

STM-1 SDH Multiplexer Feature

• Compact design with 1U height, 19 inch, 155mm depth, and can be installed on standard rack
• Optical interface
  • Two STM-1 optical interfaces; SFP optical module (LC interface); Hot pluggable
  • The line bit rate is 155Mb/s, single mode, ltransmission distance is optional (depend on the SFP optical module)
  • Supports real-time detection for the status of optical module
  • Supports Automatic Laser Shutdown(ALS) to protect operators from hurt
  • Supports Remote Power down Detect (RPD) function
• Ethernet interface
  • One fiber gigabit Ethernet interface and three copper gigabit Ethernet interfaces compliant with IEEE802.3 serial standard;
  • The copper 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; supports auto MDI/MDX function
  • The optical gigabit Ethernet interface adopts 1.25G SFP module, which can work in 1000M full-duplex mode, transmission distance is optional (depend on the SFP optical module)
  • Provides two WAN port (inside and invisible), each corresponding to one VCG separately, the bandwidth of each VCG is a VC4.
• Management Interface
  • Any of the GE1-3, GX4 can be used as the Ethernet management interface (EMU)
  • Provides one serieral management interface (CONSOLE)
  • Supports embedded DCN management channel to achieve inband management
• Ethernet Switch bridge
  • Supports unicast, multicast and broadcast frame
  • Supports 802.3x flow control and broadcast storm filtering control*
  • 8K MAC address table, with optional 12s / 300s ageing time configurable, the default is 300s
  • Supports MAC address dynamic learning function
  • Supports 256 items static MAC address configuration
  • Accepts frames with length between 64 and 1552/2048 bytes (otherwise filtering)
  • The gigabit ethernet over STM-1/OC3 multiplexer supports port-based VLAN and IEEE802.1Q tag-based VLAN
  • Supports QinQ(Double Tag VLAN)
  • Supports up to 4K items VLAN table
  • Supports Link Aggregation for WAN and LAN port, supports up to 4 link aggregation groups
  • Supports IEEE 802.1P QoS
  • Supports Port Mirroring
  • Supports Dynamic ARL Table Learning and Searching
  • Supports port rate control
  • Provides performance statistic for each Ethernet interface;
• Loop back
  • Supports VC4 channel of STM-1 optical loopback towards line side
• Supports 1+1 path protection and Automatic Protect Switch (APS) with switching time less than 50ms
• Supports 2+0 mode, the transmission bandwidth available can be up to 2 VC4
• Compliant to ITU-T standards
  • GFP-F encapsulation , compatible with ITU-T G.7041 recommendation
• NE Management
  • 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
• Supports hot-spare power, the power consumption is less than 10W
  • -48V DC single power access
  • 220V AC single power access
  • -48V DC+220V AC double power access