STM-1 Multi-Service SDH Multiplexer

STM-1 interfaces：

• Number of ports: 2
• Date rate: 155.520Mbps
• Connector: SFP slot, Hot pluggable, Optical or Electrical Optional
• Supports 1+1 path protection and Automatic Protect Switch (APS) , Recovering time: <50ms
• Supports real-time detection for the status of optical module
• Supports ALS (Automatic Leaser Shutdown)
• Supports RPD (Remote Power down Detection)
• Supports optical line loop and device loop

Fast Ethernet Card

• Number of ports: 4
• Number of VCG (Virtual Concatenation Groups ): 4
• Combinations: 4 Fast Ethernet (FE)
• Connector: RJ-45 (100BaseTx)
• Date rate: 10/100Mbps, Auto-negotiation, Full/Half-duplex
• Max Frame Size:1552 bytes (otherwise filtering)
• Min Frame Size: 64 bytes
• Supports unicast, multicast and broadcast frame
• Supports MAC address dynamic learning
• VLAN: Supports IEEE 802.1Q tag-based VLAN and port-based VLAN
• Throughout statistic of the Ethernet packets based on port
• Supports 802.3x flow control and broadcast storm filtering control
• Auto MDI/MDX function
• Compliance: Relevant sections of IEEE 802.3
• Generic Framing Procedure GFP-F compliant with ITU-T G.7041.
• VCAT compliant with ITU-T G.707 and LCAS compliant with ITU-T G.7042 (Ethernet over SDH).

Gigabit Ethernet Card

• Number of ports: 2
• Number of VCG (Virtual Concatenation Groups ): 1
• Combinations: 1 electrical Gigabit Ethernet (GE) and 1 optical Gigabit Ethernet (GX)
• Connector: RJ-45 for electrical (1000BaseTx) and SFP for optical (1000BaseSx or 1000BaseLx)
• Date rate: Electrical 10/100/1000Mbps and Optical 1000Mbps
• Max Frame Size:1552/2036 bytes (otherwise filtering)
• Min Frame Size: 64 bytes
• Supports unicast, multicast and broadcast frame
• MAC address table: 8K
• Supports MAC address dynamic learning
• VLAN: Supports IEEE 802.1Q tag-based VLAN and port-based VLAN
• Supports QinQ (Double Tag VLAN)
• Throughout statistic of the Ethernet packets based on port
• Supports 802.3x flow control and broadcast storm filtering control
• Auto MDI/MDX function
• Compliance: Relevant sections of IEEE 802.3
• Generic Framing Procedure GFP-F compliant with ITU-T G.7041.
• VCAT compliant with ITU-T G.707 and LCAS compliant with ITU-T G.7042 (Ethernet over SDH).

E1 interface：

• Number of ports: 8 or 16.
• Date rate: 2.048Mbps±50ppm.
• Line code: HDB3.
• Line Impedance:
• 120Ω, balanced.
• 75Ω, unbalanced.
• Connector:
• RJ-45, balanced.
• Two BNC, unbalanced (via adapter cable).
• Compliance: ITU-T G.703, G.704, G.823.

Timing

• STM-1 line timing (T11,T12)
• Tributary timing from E1-1 to E1-16 (T2)
• External timing source input (T31/T32), 2048Kbit/s by default and 2048KHz selectable
• External timing output (T41/T42), 2048Kbit/s by default and 2048KHz selectable
• ITU-T G.813 internal oscillator
• The timing source can be auto-switched according to SSM or operator settings

System Management

• CLI: Local management is performed via CLI terminal
• SNMP: Compatible with V1 and V2C protocol. Access is available using SNMP management software “Smartview”
• LED indication: Necessary alarm indications such as NOP, LOF, RPD
• Download online: Supports FTP protocol and firmware download online without disturbance of existing traffic
• Supports embedded BERT and various loop back for troubleshooting