1. Slide 1Copyright : Valiant Communications Limited - 2007 16 Port T1 VCL-MegaConnect-Jr. Digital Access Cross Connect Switch (DACS) V aliant C ommunications L imited Telecom Transmission Solutions Updated : March, 2007 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

2. Slide 2Copyright : Valiant Communications Limited - 2007 Product Overview VCL- VCL-MegaConnect-Jr. T1 DACS The 16 Ports T1 Digital Access Cross Connect Switch, which presents its user an easy to use, yet a sophisticated platform to cross connect up to 16 T1 Ports Offers full cross-connect functionality to cross-connect, and/or aggregate DS-0s, "n"x64Kbps consecutive data channels and, fractional T1 channels to full T1 channels Unidirectional and Bidirectional Monitoring Non-Intrusive Monitoring Application/Combine traffic from partially-utilized facilities into a single fully-utilized T1 Occupies only a 2U high rack-space 19-inch stand-alone unit provides connectivity of up to 16 T1 Ports Units operates on a -48V DC input power-supply (AC input adapter is optional). T1 Digital Access Cross Connect Switch

3. Slide 3Copyright : Valiant Communications Limited - 2007 ISP providing fractional T1s to subscribers Data aggregating fractional T1 data circuits Monitoring & Billing-Non-Intrusive Line Traffic Monitoring for “Listen-Only” and Billing Applications Cellular extending fractional T1 ports from MTSO to cell-sites. Applications Highlights Stratum 3 clock Remote TCP/IP access for configuration and monitoring Text based user friendly CLI for easy configuration Telnet option Available in 16 T1 ports configuration. VCL- VCL-MegaConnect-Jr. T1 DACS

4. Slide 4Copyright : Valiant Communications Limited - 2007 Provides DS0, "n"x64Kbps and fractional T1 grooming for up to 16 T1 ports Rear access User friendly CLI (text based) commands Telnet (10/100BaseT) option Easy to install Configurable from 2 T1 ports to 16 T1 ports depending on user requirements LED Indications on the front panel for alarms and status. Features Benefits Reduce access costs by combining partially loaded T1s to a single T1 Rear access wiring. Improves wiring and cable management Support Nx64kbps fractional T1 operation and grooming Can be ordered for (Non-Intrusive) connecting to monitoring/billing equipment for Live-Traffic monitoring and cross connect functions Easy to install and simple to use. VCL- VCL-MegaConnect-Jr. T1 DACS

5. Slide 5Copyright : Valiant Communications Limited - 2007 Applications VCL- VCL-MegaConnect-Jr. T1 DACS

6. Slide 6Copyright : Valiant Communications Limited - 2007 VCL- VCL-MegaConnect-Jr. T1 DACS

7. Slide 7Copyright : Valiant Communications Limited - 2007 To monitor an T1 link in a single direction, you will need to connect ONE high impedance T1, RX pair of the DACS, as it is only the Rx (RECEIVE) pair that is capable of listening. Please leave the Tx (TRANSMIT) pair un-connected. VCL- VCL-MegaConnect-Jr. T1 DACS

8. Slide 8Copyright : Valiant Communications Limited - 2007 To monitor an T1 link in both directions, you will need to connect TWO high impedance T1, RX pairs of the DACS, i.e. use 1 Hi-Z T1 ports. A Total of 7 T1 links can be monitored bidirectionally aggregated to 2 T1’s. VCL- VCL-MegaConnect-Jr. T1 DACS

9. Slide 9Copyright : Valiant Communications Limited - 2007 16 Port T1 DACS - VCL-MegaConnect-Jr.- Shelf Descriptions The 16 Port T1 DACS - VCL-MegaConnect-Jr. unit is a 2U, 19 Inch Shelf, fitted with a backplane that provides rear access of all external interfaces. The 1.544 Mbps electrical I/O, power input, alarm extension and the NMS port are all accessed from the backplane. The 1.544Mbps, T1 Interfaces are, 100 Ohms twisted pair RJ-45 connectors. VCL- VCL-MegaConnect-Jr. T1 DACS

10. Slide 10Copyright : Valiant Communications Limited - 2007 Technical Specifications T1 Interface Line RateT1 (1.544 Mbps) Available Time-Slots1-24 Framing StructureAs per ITU-(CCITT) G.704 Framing OptionsD4, ESF (Selectable) Line CodingAMI, B8ZS (Selectable) Electrical ITU-T G.703 Jitter ITU-T G.823, ITU-T 1.431 Impedance100 Ohms Connector RJ-45 (F) VCL- VCL-MegaConnect-Jr. T1 DACS Time - slot selection ANY-TO-ANY through an internal, best byte, non-blocking TSI Switch.

11. Slide 11Copyright : Valiant Communications Limited - 2007 Clock Internal(Stratum3 level) Loop-Timed External75 Ohms - 2.048 MHz - 1.544 MHz Management and Control Serial Management Port (RS232) - COM Port 10/100 BaseT for Remote Management over a LAN 10/100 BaseT Telnet over a TCP-IP Network Command Language Command Line Interface (English text commands) Windows based GUI (optional) Telnet. VCL- VCL-MegaConnect-Jr. T1 DACS

12. Slide 12Copyright : Valiant Communications Limited - 2007 Specification and Regulation Compliance Meets CE requirements. Complies with FCC, Part 68 and Part 15 subpart A specifications. Safety - UL 1459 Issue 2. Alarm Contact Closures 1 Alarm Relay, Type - Form "C" relay Temperature Operating0 0 C to 50 0 C Humidity 5% to 95% Non-condensing Power Consumption Power Consumption18 Watt VCL- VCL-MegaConnect-Jr. T1 DACS

13. Slide 13Copyright : Valiant Communications Limited - 2007 Mechanical Specification Width:480mm Depth:280mm Height:90mm Weight:4.20 Kg. Alarm Status Monitoring Loss of incoming Signal at all 1.5Mbps ports Configuration Error Alarm In addition to the above monitoring facilities, VCL-DACS is provided with LED's, which indicate various fault conditions Monitoring 16 Port T1-DACS via LED Indications 1 to 16 T1 Ports LED indicators +3V DC present -48V DC present Configuration Error VCL- VCL-MegaConnect-Jr. T1 DACS

14. Slide 14Copyright : Valiant Communications Limited - 2007 Valiant’s Products Digital Access Cross Connects - E1 / T1, E3, DS3, 10/100 BaseT Ethernet Groomers (Hi-Z Non-intrusive Hi-Impedance Monitoring) 1+1 APS (Automatic Protection Switching) Echo Canceller & Voice Quality Enhancement Solutions - E1, T1, DS3 and STM-1 E1 Drop-Insert (Add-Drop) Voice and Data Multiplexers E1, T1, E3, DS3, Ethernet Converters STM-1 Add Drop Multiplexer with Ethernet GSM Gateways - E1/T1 E1 PRI ISDN (Euro ISDN) Q.931 Multiplexers Channel Banks E2 (4 E1), 2/34 Mbps PDH Multiplexer, 34 Mbps OLTE Remote Site Monitoring Equipment VCL- VCL-MegaConnect-Jr. T1 DACS

15. Slide 15Copyright : Valiant Communications Limited - 2007 Thank you for your attention For more details visit us at our Website at http://www.valiantcom.com VCL- VCL-MegaConnect-Jr. T1 DACS 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