1. Copyright Valiant Communications Limited 2004-2005 16 Port, T1 Digital Access Cross Connect Switch VCL-MegaConnect-Jr. T1 DACS Telecom Transmission Solutions Confidential Slide 1 V aliant C ommunications L imited Updated : January, 2005 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. Copyright Valiant Communications Limited 2004-2005 Product Overview Confidential Slide 2 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS T1 Digital Access Cross Connect Switch 16 Ports, E1 Digital Access Cross Connect Switch 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. Uni-directional Monitoring Bi-directional Monitoring Non - Obstructive Monitoring Application/ Combine traffic from partially - utilized facilities onto 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 48VDC input power-supply (AC input adapter is optional).

3. Copyright Valiant Communications Limited 2004-2005 ISP - Providing Fractional T1s to Subscribers Data - Aggregating Fractional T1 Data Circuits Monitoring & Billing - Non-Obstusive Line Traffic Monitoring for “Listen-Only” and Billing Applications Cellular - Extending Fractional T1 ports from MTSO to Cell-Sites. APPLICATIONS: HIGHLIGHTS: Confidential Slide 3 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- MEGA-CONNECT, Jr. T1 DACS

4. Copyright Valiant Communications Limited 2004-2005 Provides DS0, "n"x64Kbps and Fractional T1 grooming for up to 16 T1 ports. Rear Access User friendly CLI (text based) commands. Telnet (10 / 100 BaseT) 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 Nx56/64kbps fractional T1 operation and grooming. Can be ordered for (non - obtrusively) connecting to monitoring/billing equipment for Live - Traffic monitoring and cross connect functions. Easy to install and simple to use. Confidential Slide 4 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

5. Copyright Valiant Communications Limited 2004-2005 APPLICATIONS Confidential Slide 5 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

6. Copyright Valiant Communications Limited 2004-2005 Confidential Slide 6 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

7. Copyright Valiant Communications Limited 2004-2005 To monitor an T1 link in a single direction, you will need to connect ONE high impedence 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. Confidential Slide 7 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

8. Copyright Valiant Communications Limited 2004-2005 To monitor an T1 link in both directions, you will need to connect TWO high impedence T1, RX pairs of the DACS, i.e. use 1, Hi-Z T1 ports. Confidential Slide 8 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

9. Copyright Valiant Communications Limited 2004-2005 VCL-DACS, T1 DIGITAL CROSS CONNECT SWITCH - SHELF DESCRIPTION: The VCL-DACS, T1- Digital Cross Connect Switch unit is a 2U, 19 Inch Shelf, fitted with a backplane that provides rear access of all external interfaces. The 2Mbps electrical I/O, power input, alarm extension and the NMS port are all accessed from the backplane. The 2Mbps, T1 Interfaces are, 120 Ohms twisted pair wire-wrap or RJ-45 connectors. Confidential Slide 9 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

10. Copyright Valiant Communications Limited 2004-2005 TECHNICAL SPECIFICATIONS Line RateT1 (1.544 Mbps ± 50 bps) Available Time-Slots1-24 Framing Structure as per ITU(CCITT) G.704 Framing Options D4, ESF (Selectable) Line CodingAMI, B8ZS (Selectable) Electrical ITU-T G.703 Jitter ITU-T G.823, ITU-T 1.431 Impedance 100 Ohms Connector RJ-45 (F) T1 Interface ANY-TO-ANY through an internal, best byte, non-blocking TSI Switch. Time - slot selection: Internal(Stratum3 level) Loop-Timed External75 Ohms - 2.048 Mhz - 1.544 Mhz Clock : Confidential Slide 10 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

11. Copyright Valiant Communications Limited 2004-2005 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. Confidential Slide 11 Command Line Interface (english text commands) Windows based GUI (optional). Command Language: Specification and Regulation Compliance Meets CE requirements Complies with FCC, Part 68 and Part 15 subpart A specifications Safety - UL 1459 Issue 2 VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

12. Copyright Valiant Communications Limited 2004-2005 Confidential Slide 12 Width:480mm Depth:280mm Height:90 mm Weight:4.20 Kg. Temperature Operating 0 0 C to 50 0 C Humidity 5% to 95% Non-Condensing Power Consumption Power Consumption18 Watt Mechanical Specification Alarm Contact Closures 1 Alarm Relay, Type - Form "C" relay, VCL- VCL- MEGA-CONNECT, Jr. T1 DACS

13. Copyright Valiant Communications Limited 2004-2005 VCL Products Confidential Slide 13 E1, Voice & Data Drop-Insert Multiplexer PRI ISDN (Q.931) Multiplexers E1 Intelligent Channel Banks E1 / T1 DCME (Digital Circuit Multiplication Equipment) - Voice Compression Equipment Thin Route DCME E1 / T1 Echo Cancellers E1 / T1 Digital Cross Connect T1 / E1 Converters E3, 34Mbps Multiplexer 34Mbps Optical Line Transmission Equipment (OLTE) Digital Loop Carrier Remote Asset Management Systems STM-1 / STM-4 SDH Equipment

14. Copyright Valiant Communications Limited 2004-2005 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