Gigabit Ethernet over SDH (Gigabit Ethernet over STM-1) Converters

VCL Products > IP over TDM > Gigabit Ethernet over SDH (STM-1) Converters

Gigabit Ethernet over SDH (STM-1) Converters

Valiant’s Gigabit Ethernet over SDH (STM-1) provides a simple, cost effective and compact solution to convert 10/100/1000Base-T (Gigabit) data interface on the user side and transport Ethernet traffic over a STM-1 (155Mbps) SDH link and reconstruct the data back to ethernet frame format, at remote end. The converter is an effective method for converting and transporting 10/100/1000Base-T (Gigabit) ethernet data over an STM-1 (155Mbps) SDH link. The unit is available in a compact 1U (44mm high) box in a 19-inch rack mount chassis.

Features and Highlights:

Compact 1U height, 19-Inch standard chassis ideal for rack mounting
Provides complete diagnostics facilities to the user for monitoring optical ports and provide reading of optical transmit power, optical receive power, laser temperature, bias current in voltage alarms etc.
Performance Monitoring and Alarms - Error counts for B1, B2, B3
Performance Analysis - Error Seconds (ES), Several Error Seconds (SES), Unavailable seconds UAS, Higher Order Virtual Container - Remote Error Indication (HOVC-REI), Higher Order Virtual Container - Pointer Justification Event (HOVC-PJE)
Supports 1+1 Line Protection and Automatic Protection Switching (APS) with less than 50ms recovery
Supports point-to-point
Local management and network-based management via a unified platform
Supports Remote Power Down Detection and Auto Laser Shutdown
Supports STM-1 loop-back for troubleshooting
850nm multi-Mode, 1310nm Single Mode and 1550nm Single Mode optical interface options offered
Ethernet mapping adopts GFP/VC-12 virtual concatenated technology; according with MSTP criterion
Provides Gigabit Ethernet over SDH mapping through standard GFP and VC-12 virtual concatenation (VCAT)
Ethernet bandwidth can be adjusted by the user between 2MBps ~126 Mbps (VC-12 mapping)
Supports MAC Address list filtration, learning and updating function
Easy to operate

Applications

10/100/1000Base-T (Gigabit) Ethernet to STM-1 conversion (100/1000Base-T over an STM-1 [155Mbps] interface)
WiMAX station connectivity
High-bandwidth private LAN services
Enterprise connectivity
IP DSLAM backhauling
3G mobile station connectivity
Gigabit Ethernet over STM-1 converter - Remote LAN over wireless
Gigabit Ethernet over STM-1 converter - Remote LAN application

Service interfaces

2 x STM-1 optical interfaces, MSA compliant SFP (pluggable) optical module (LC connector) based design, which supports onsite optical port replacement
2 x STM-1 electrical interfaces, SFP electrical module (Mini BNC connector) Optional
1 x GigE (Gigabit) Ethernet interface Options
Optical GigE (Gigabit) Ethernet interface
Electrical 1000BaseT (Gigabit) Ethernet Interface

Management and Maintenance interfaces

10/100BaseT Ethernet management interface
RS232 serial management interface
Remote (Telnet) management interface
Windows XP based Graphical User Interface (GUI)
Windows 7 based Graphical User Interface (GUI)
SNMP V2 Monitoring
Engineering Order Wire (EOW) interface (RJ-11)
NMS (Network Management System) for monitoring multiple units from a single / central location.

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) - Factory Configurable
Internal Clock - ITU-T G.813 internal oscillator (Stratum 3)
The timing source can be auto-switched according to default or operator programmed settings

Ethernet Standards Conformity

Electrical Gigabit compliant with 802.3ab
Optical Gigabit compliant with 802.3z
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 flow control on WAN port and LAN port
Large buffer size upto 410,000 bytes
Maximum Frame length (MTU size):1552 bytes
Auto MID/MID-X for Ethernet Interfaces
Support 802.1Q based VLAN tagging
Support Port based VLAN tagging
Performance Analysis

All Received Packets
All Transmitted Packets
Received Dropped Packets

Alarm and Indicator Monitoring

Power Indicator
Current Status (integrity and activity) Indicator
Urgent Alarm Indicator
Minor Alarm Indicator
Optical Signal Loss Alarm Indicator
Remote Device Power-down Indicator
Ethernet Card Status Indicator
General Alarm Indicator for Ethernet Card (including Link-down of Ethernet Port)
Auto Laser Shutdown (ALS) Indicator
Engineering Order-Wire (EOW) Indicator
Ethernet Link Indicator
Ethernet Speed Indicator
Dry contact via 9-pin, D-type male connector
Buzzer Alarm
SNMP Diagnostic and Monitoring