Features and Highlights:

• Compact 1U height, 19-Inch standard chassis ideal for rack mounting

• Service interfaces
• 2 x STM-1 optical interfaces, SFP optical module (LC connector)
• 2 x STM-1 electrical interfaces, SFP electrical module (Mini BNC connector) (optional)
• 2 x Gigabit Ethernet (electric) interface or
• 1 x Gigabit Ethernet (optical) interface (optional-extra)

• Management and Maintenance Interfaces
• TCP/IP Management Interface for Telnet and SNMP
• RS232 Serial Management Interface
• SNMP based NMS inbuilt with Windows XP / Windows Vista compatible Graphical User Interface (GUI)
• SNMP V2 Management and Monitoring
• Engineering Order Wire (EOW) Interface (RJ-11)

• Timing mode
• Synchronization with STM-1 line timing
• External timing source option - 120 Ohms 2MBps (External Bits Clock)
• External timing source - 120 Ohms 2MHz (External TTL Clock)
• Internal Clock - ITU-T G.813 internal oscillator
• The timing source can be auto-switched according to default or operator programmed settings
• 1 or 2 external Ethernet LAN ports and 4 internal Ethernet WAN ports
• Each WAN port employs a VCG channel
• Up to 48 VC12 bandwidth for each VCG and the total bandwidth is 63 VC12 assigned for 4 VCGs
• Provide two Gigabit Ethernet electrical interface or one Gigabit Ethernet optical interface as LAN interface (customer may use either 2 Gigabit electrical interfaces or 1 Gigabit optical interface, at any time)
• Ethernet electrical interface (RJ45 connector) supports 10/100/1000Mb/s auto-negotiation
• Ethernet Optical interface (SFP module) supports 1000Mb/s and automatic Laser Shutdown (ALS) function
• Supports 802.3 frame type and Ethernet II frame type
• Supports flow control and broadcast storm filtering control
• Supports MAC address dynamic learning function
• Supports port-based VLAN and 802.1Q tag VLAN
• Supports GFP-F Encapsulation specification complying with ITU-T G.7041
• Supports VCAT specification complying with ITU-T G.707 and LCAS proposed in G.7042
• The maximum tolerated differential delay between any two VC-12 channels is 128 ms
• Provides both LCAS and Non-LCAS modes
• Supports automatic protection switching based on VC-12, in a ring network
• Supports device management based on CLI command and network management based on SNMP protocol
• Minimum Frame Size : 64 bytes
• Maximum Frame Size : 1536 bytes
• Easy to operate