1. Slide 1 Copyright : Valiant Communications Limited. - 2010 Slide 1 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Updated: April, 2010 V aliant C ommunications L imited Telecom Transmission Solutions VCL-MX™ Version 5 12 E1 Voice & Data Multiplexer Product Presentation

2. Slide 2 Copyright : Valiant Communications Limited. - 2010 Slide 2 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer  Carrier class and cost-effective bandwidth provisioning equipment designed to manage and deliver services from the optical core to the access  Used for inter-connecting legacy voice and data networks, provisioning and managing bandwidth on a E1 channelized level as well as 64Kbps, DS-0 time-slot level and as a digital-access cross-connect equipment  Easy network manageability  Low cost per line  Easy upgradeability  Carrying both voice and data over PDH  Easy integration to SDH network  Higher reliability  SNMP Management  Network Management System. Product Overview:

3. Slide 3 Copyright : Valiant Communications Limited. - 2010 Slide 3 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer  2Mbps, 12 E1 non-blocking cross-connect at 64Kbps (DS-0) level  Single Control Card  1+1 Redundant Power Supply  May be used in a Point-to-Point, Point-to-Multi point, Add-Drop (drop-insert), Tree and Star topology  Telnet  SNMP V2  In-band and Out-of-band management  GUI - Easy to use Graphical User Interface  NMS - SNMP V2 based Network Management System. Features:

4. Slide 4 Copyright : Valiant Communications Limited. - 2010 Slide 4 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer  Integrated Voice and Digital Data services  Any combination ("mix-n-match") of voice and digital data services deployed from a single VCL-MX "Smart Shelf” - 2 channels per card  User programmable ABCD CAS signaling option  Digital Data option may be used for internet access or video conferencing application  SCADA applications  19-inch, 6U high construction. Additional Features:

5. Slide 5 Copyright : Valiant Communications Limited. - 2010 Slide 5 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer  Compliance with all relevant ITU-T (CCITT) recommendations  Field upgradable to provide voice, data or both services  Flexibility on use of transmission medium-copper, fiber or wireless  Choice of Interfaces for Voice and Data Applications  RS232, Interface for local connection through the serial interface to the "Network Control and Management Software”  USB Interface for local connection through the serial interface to the “ Network Control and Management Software”  10/100BaseT Interface for remote connection over a TCP-IP link to the "Network Control and Management Software”  In-band and Out-of-band system configuration and management interface  Channel assignment independent of slot position in the sub-rack. Highlights:

6. Slide 6 Copyright : Valiant Communications Limited. - 2010 Slide 6 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer  Extensive set of alarms  User configurable Internal, External or Loop-timed synchronization clock options  Supports 120 Ohms and 75 Ohms TTL External synchronization clock options  Provides 120Ohms external synchronization clock output  Integrated OAM (Operations and Management) Card  Any interface card can plug in at assigned interface slot. Highlights:  Copper  Optical Fiber  Wireless. Transmission Mediums:

7. Slide 7 Copyright : Valiant Communications Limited. - 2010 Slide 7 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Provides full range of POTS (voice) and digital data services to subscribers located at different locations, requiring to interconnect and establish a voice and data network over an E1 link. Voice Interfaces:  FXO  FXS  E&M (2 Wire and 4 Wire)  FXS-FXS (Hot-line)  FXS-C-FXS-C (15-way conference)  Magneto (GEN-GEN)  Ring Generator (75V RMS). VCL-MX Version #5

8. Slide 8 Copyright : Valiant Communications Limited. - 2010 Slide 8 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Data Interfaces:  Channelized E1 / Fractional E1 Data  RS232 asynchronous data  V.24 synchronous data / asynchronous data  G.703, @ 64 Kbps, co-directional  V.35, V.36, X.21, V.11, RS442, RS530, “n”x64Kbps data  V.35, V.36, X.21, EIA530, V.11, V.28, RS485, RS232 @ 64Kbps  10BaseT Bridge Interface Card  Analog I/O Card (Dry Contact)  Digital I/O Card (TTL signal)  Universal Data Interface Card (user configurable data interface)  BRI (2B+D) ISDN.  Complete Capability to Cross Connect Voice and Digital data between 12 incoming E1 ports (i.e. 12 separate connecting E1 links) VCL-MX Version #5

9. Slide 9 Copyright : Valiant Communications Limited. - 2010 Slide 9 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Front View: Voice and Data Drop-Insert Multiplexer with In-band Management Interface and “n” x 64 Kbps data options VCL-MX Version #5

10. Slide 10 Copyright : Valiant Communications Limited. - 2010 Slide 10 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Rear View: VCL-MX Version #5

11. Slide 11 Copyright : Valiant Communications Limited. - 2010 Slide 11 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Applications of VCL-MX Version 5  POTS (voice), digital data, or real-time video conferencing services (V.35, V.36, X.21, 10BaseT Ethernet Bridge) high-speed digital data interface options allows video conferencing channel of up to 1920 Kbps)  Junction Mux - for digital interconnection of analog exchanges.  Point-to-Point, Point-to-Multi point, Add-Drop (drop-insert), Tree and Star topology applications  Wireless network applications  High-speed data ports for digital communication links providing leased  Lines access to Internet Service Provider (ISPs) with speeds ranging from 64Kbps up to 1920 Kbps digital data interface options.

12. Slide 12 Copyright : Valiant Communications Limited. - 2010 Slide 12 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer  Micro-Cellular infrastructure applications for providing cell-switch connectivity  Wide area networking  Internet Access over POTS lines - All POTS interfaces operate @ 64Kbps and support V.34 (33.6Kbps) dial-up modems. Applications of VCL-MX Version 5

13. Slide 13 Copyright : Valiant Communications Limited. - 2010 Slide 13 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 01: VCL-MX, 12 E1 Voice & Data Multiplexers Connecting over Digital Microwave Radio Links Applications

14. Slide 14 Copyright : Valiant Communications Limited. - 2010 Slide 14 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 02: VCL-MX, 12 E1 Voice & Data Multiplexers Connecting over Optical Fiber Links Applications

15. Slide 15 Copyright : Valiant Communications Limited. - 2010 Slide 15 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 03: VCL-MX, 12 E1 Voice & Data Multiplexer Connecting at the Central Office/Switch - E & M Interfaces Applications

16. Slide 16 Copyright : Valiant Communications Limited. - 2010 Slide 16 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 04: VCL-MX, 12 E1 Voice & Data Multiplexer Using in a Subscriber Loop Point to Point or Drop/Insert Application Applications FXO/JNC 2 wire exchange loop interface card FXS/SLC 2 wire subscriber loop interface card

17. Slide 17 Copyright : Valiant Communications Limited. - 2010 Slide 17 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 05: VCL-MX 12 E1 Voice & Data Multiplexer Providing Synchronous (X.21, V.35, V.36, RS530) “n x 64” Kbps Data Interfaces DCE- Remote DCE Configuration Data Interface Card (Application A) Applications

18. Slide 18 Copyright : Valiant Communications Limited. - 2010 Slide 18 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 05: VCL-MX 12 E1 Voice & Data Multiplexer Providing Synchronous (X.21, V.35, V.36, RS530) “n x 64” Kbps Data Interfaces DCE- Remote DTE Configuration Data Interface Card (Application B) Applications

19. Slide 19 Copyright : Valiant Communications Limited. - 2010 Slide 19 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 06: VCL-MX 12 E1 Voice & Data Multiplexer Providing Voice and Synchronous (V.11, X.21, V.35, V.36, RS422, RS530) “n x 64” Kbps Data Interfaces Applications

20. Slide 20 Copyright : Valiant Communications Limited. - 2010 Slide 20 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 07: For providing Hybrid Voice and Data Services Applications

21. Slide 21 Copyright : Valiant Communications Limited. - 2010 Slide 21 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer Application # 08: VCL-MX 12 E1 Voice & Data Multiplexer used in Add-Drop, Tree and Star Configuration Applications

22. Slide 22 Copyright : Valiant Communications Limited. - 2010 Slide 22 VCL-MX, E1 Voice & Data Drop-Insert Multiplexer 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