1. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 1 Gigabit Ethernet over SDH (STM-1) Product Presentation Updated: 19 April, 2010 V aliant C ommunications L imited Telecom Transmission Solutions

2. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 2 Gigabit Ethernet over SDH (STM-1) Product Overview Gigabit Ethernet over SDH (STM-1) Equipment is a modular platform unit with two pluggable 155.52Mbps optical / electrical interfaces. Used in a point-to-point application to provide a compact, cost effective and flexible solution to deliver multiple Ethernet channels. Gigabit Ethernet interface card along with Engineering Order Wire is available. The user removable / replaceable STM-1 Optical / Electrical interface option makes it easy to meet various and changing user requirements. Gigabit Ethernet over SDH Transmission Equipment provides full capability to cross-connect at VC-12 level between all tributaries. The equipment can be used as Terminal Multiplexer (TM) to build a point-to- point SDH transmission network.

3. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 3 Gigabit Ethernet over SDH (STM-1) Features and Highlights 1U height, 19-Inch standard rack-mountable chassis Service interface 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 1 Optical GigE (Gigabit) Ethernet interface 2 Electrical 1000BaseT (Gigabit) Ethernet Interface 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

4. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 4 Gigabit Ethernet over SDH (STM-1) Features and Highlights 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) 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.

5. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 5 Gigabit Ethernet over SDH (STM-1) Timing mode Synchronization with STM-1 line timing External timing source - 120 Ohms 2MBps (External Bits Clock) - Factory Configurable 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 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 Electrical Gigabit compliant with 802.3ab Optical Gigabit compliant with 802.3z Features and Highlights

6. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 6 Gigabit Ethernet over SDH (STM-1) 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 Ethernet bandwidth can be adjusted by the user between 2Mbps ~126 Mbps (VC-12 mapping) Supports MAC Address list filtration, learning and updating function Supports 1+1 Line Protection and Automatic Protection Switching (APS) with less than 50ms recovery Supports point-to-point topology Supports Remote Power Down Detection and Auto Laser Shutdown Features and Highlights

7. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 7 Gigabit Ethernet over SDH (STM-1) 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 Ethernet over SDH mapping through standard GFP and VC-12 virtual concatenation (VCAT) Easy to operate Redundant power supply (EMI/EMC Complied) card options AC+DC, DC+DC and AC+AC. 110V AC - 240V AC (50/60 Hz) power options available -48V and - 24V DC power option available Power consumption less than 12W. Features and Highlights

8. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 8 Gigabit Ethernet over SDH (STM-1) 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.

9. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 9 Gigabit Ethernet over SDH (STM-1) Application Diagram Point to point network application STM-1 Link LAN ROUTER LAN ROUTER SDH STM-1 Link Gigabit Ethernet over SDH (STM-1) Gigabit Ethernet over SDH (STM-1)

10. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 10 Gigabit Ethernet over SDH (STM-1) Front Panel Description

11. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 11 Gigabit Ethernet over SDH (STM-1) Switches ADDRESSNE / EOW (Phone) address switch MUTEAlarm speaker mute / unmute switch LED Indicators PWR (Green)Power indicator RUN (Green)Running indicator UALM (Red)Urgent alarm indicator DALM (Yellow)Minor alarm indicator NOP A/B (Red)Optical / electrical signal loss Alarm indicator RPD A/B (Yellow)Remote device power-down indicator ETH (Green)Ethernet card existing status indicator TALM (Red)General alarm indicator for Ethernet card ALS Auto Laser Shut enable / disable status indicator ALS (Green)Auto Laser Shut enable / disable status indicator BUSY BUSY (Green)EOW (Phone) status indicator

12. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 12 Gigabit Ethernet over SDH (STM-1) Access Interfaces CONSOLE (RJ-45)Serial network management interface for CLI management EMU (RJ-45)Ethernet network management interface Optical Interfaces OPTASFP based optical / electrical interface A OPTBSFP based optical / electrical interface B External Alarm (U/DALMO) Interface U/DALM (DB-9)Urgent (major) and differed (minor) external alarm interface

13. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 13 Gigabit Ethernet over SDH (STM-1) User Channel (RS232) Interface RS2322 (RJ-45)User channel interface, RS232 level, used to transmit the collected alarm information of the telehouse, the user control information and etc. EOW Interfaces EOW Interface (RJ-11)Engineering Order Wire (Phone) interface, Ordinary telephone set with two linemode can be used External Management / Timing Interfaces ETS1/ETS2 (RJ-45)Two external timing source (TTL or Bits) interfaces EXM1/EXM2 (RJ-45)Two external management interfaces

14. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 14 Gigabit Ethernet over SDH (STM-1) Rear Panel Description

15. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 15 Gigabit Ethernet over SDH (STM-1) AC and DC Power Supply Ethernet Options SOCKET 3Gigabit Ethernet Card, Option 1 – Electrical 1000BaseT (Gigabit) Ethernet Interface (2 x RJ-45) – Standard configuration Option 2 – Optical GigE (Gigabit) Ethernet interface (1 SFP based optical Gigabit Ethernet). Power SlotTwo power card slots, one for 110V AC - 240V AC (50/60 Hz), the other is -48V DC. Two different cards (AC+DC) or two same cards (AC+AC, DC+DC) can be inserted into the device simultaneously. Power SwitchON / OFF switch, '1': Power ON, '0': Power OFF.

16. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 16 Gigabit Ethernet over SDH (STM-1) Management Options Easy to use CLI commands through RS232 serial connection and TCP/IP TELNET connection SNMP V2 Management through MIB browser DIP switch settings given on front panel Windows XP / Windows 7 based GUI (Graphical User Interface) to access the equipment over RS232 serial connection, TCP/IP and SNMP protocol. Alarms and Indicator Monitoring SNMP based Alarms (TRAPS) event monitoring through MIB browser and NMS Visual alarm indicators in the front panel Ethernet (Data) port speed and mode status Real time Buzzer alarm for any alarm event.

17. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 17 Gigabit Ethernet over SDH (STM-1) Monitoring and Managing multiple systems from a central location over RS232 serial connection (Local), TCP/IP TELNET and SNMP Protocol (LAN or Remotely) Monitoring single system Monitoring multiple systems NMS (Network Management System) provides the facility to monitor multiple systems from a central location and provide alert (SNMP based) if any alarm event occurs on any Network Element (NE). NMS (Networks Management System) built in GUI

18. Gigabit Ethernet over SDH (STM-1) Copyright: Valiant Communications Limited - 2010Slide 18 Gigabit Ethernet over SDH (STM-1) Thank you for your attention For more details visit us at our Website at http://www.valiantcom.com U.K. Valiant Communications (UK) Ltd 1, Acton Hill Mews, 310-328 Uxbridge Road, London W3 9QN, United Kingdom E-mail: gb@valiantcom.com Website: http://www.valiantcom.com INDIA Valiant Communications Limited 71/1, Shivaji Marg, New Delhi - 110015, India Phone: +91-11 4105 5601, 91-11 4105 5602 Fax: +91-11 4105 5604, 91-11 2543 4300 E-mail: getinfo@valiantcom.com Website: http://www.valiantcom.com U.S.A. Valcomm Technologies Inc. 4000 Ponce de Leon, Suite 470 Coral Gables, FL 33146 United States of America E-mail: us@valiantcom.com Website: http://www.valiantcom.com