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|   Ethernet over SDH (STM-1) Converter   |

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Description
 

Ethernet over SDH provides a simple, cost effective and compact solution to convert 10/100BaseT data interface on the user side and transport Ethernet traffic over a STM-1 SDH link and reconstruct the data back to ethernet frame format, at remote end. The converter is an effective method for converting and transporting 10/100BaseT ethernet data over an STM-1 (SDH) link.

Ethernet over SDH

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)
    • 4 x 10/100BaseT Ethernet (electric) interface
    • 1 x GigE (GigaBit) Ethernet (optical) interface (optional)
  • 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
  • Ethernet Standards Conformity:
  • 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
  • Maximum Frame Size : 1536 bytes
  • Auto MDI/MDI-X for Ethernet Interfaces
  • Supports 1+1 Line Protection and Automatic Protection Switching (APS) with less than 50ms recovery
  • Supports Remote Power Down Detection (RPD) and Auto Laser Shutdown (ALS)
  • Supports STM-1 loop-back for troubleshooting
  • Supports management based on CLI commands via RS232 interface and TELNET
  • Redundant power supply (-48V DC) option available
  • Power consumption less than 20W
  • Providing standard STM-1 Electrical interface compliant to G.664 standard
  • 4 x Ethernet Ports - - electrical
  • Supports 802.1Q based VLAN tagging
  • Supports Port based VLAN tagging
  • Dual or single fiber transmission supported
  • 1310nm wavelength and 1550nm wavelength supported
  • Ethernet mapping adopts GFP/VC-12 virtual concatenated technology; according with MSTP criterion
  • Provides Ethernet over SDH mapping through standard GFP and VC-12 virtual concatenation (VCAT)
  • EoS bandwidth can be adjusted between 2M~100M by set the number of VC-12s (1~48) through management software
  • Supports MAC Address list filtration, learning and updating function
  • Easy to operate.
    •

Application Diagram

Point to Point Network: Shared Link Mode

Point to Point Network: Discrete Link Mode

STM-1 Optical Interface

Data Rate 155.52 Mbps
Standard ITU-T G.967 compliant
Bit rate 155.520Mbps
Coding NRZ
Connector LC
Light source Class 1 Laser
Wave length 1310nm or 1550nm (optional)
Transmit power S 1.1, L 1.1, L 1.2
(- 11 dBm to - 2.5 dBm - as may be ordered)
Receive sensitivity S 1.1, L 1.1, L 1.2(- 28 dBm to - 34 dBm - as may be ordered)
Automatic 1+1 Line Protection Less than 50 ms switching / recovery
Automatic Laser Shut Down Option User selectable options

STM-1 Electrical Interface

Data Rate 155.52 Mbps
Standard ITU-T G.703 Compliant
Line Code CMI
Physical Connector Mini BNC
Automatic 1+1 line protection Less than 50 ms switching / recovery

Ethernet Interface Specification: 10/100BaseT (Electrical)

Interface Types 10/100BaseT
VCAT Compliance ITU-T G.707
LCAS Compliance ITU-T G.7042
GFP-F ITU-T G.7041
Frame Size 1536 bytes
Transmission Bit Rate 10/100BaseT
Connectors RJ-45 (10/100 BaseT Electrical)

Engineering Order Wire (EOW)

Engineering Order Wire (EOW) RJ-11 connector

NMS
  • Windows XP / Windows Vista compatible
  • SNMP V2 based NMS
    •

Power Supply Options

DC Mains Input - 48VDC (range 40V DC to 60V DC)
Power Consumption < 20 Watts

Operating Conditions

Ambient temperature -200C ~ +650C
Relative humidity <90% (Non condensing)

Others Links:

  Multiplexers
  STM SDH Multiplexers
  E1 VoIP-GSM Gateways
  VoIP SS7 and C7 Solution
  Echo Cancellers and VQE Solutions
  GSM Gateways / GSM Channel Banks
  E1 and T1 over Ethernet (TDM over IP)
  Groomers (Hi-Z Non-Intrusive Monitoring)
  Digital Access Cross Connect Switch (DACS)
  E1, T1, E3, DS3, Ethernet Converter (IP over TDM)
Technical specifications are subject to change without notice.
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