VCLMX Version 6 DXC 80 E 1 160

VCL-MX Version 6 DXC 80 E 1, 160 Mbps Digital Access Cross Connect Switch

Product Overview Ø Scalable: May be used in configurations ranging from 8 E 1 Ports to 80 E 1 Ports. Ø May be scaled from 8 E 1 Ports to up to 80 E 1 Ports by adding additional interface cards. Ø Versatile: May be configured as a DACS or as a E 1 Multiplexer to provide E 1, Voice and data services. Ø Offers full cross-connect functionality to cross-connect between 64 Kbps timeslots (DS-0 s), “n”x 64 Kbps consecutive DS-0 s and Fractional E 1 channels to full E 1 channels Ø 160 Mbps, 80 E 1 fully non-blocking cross-connect at 64 Kbps (DS-0) level (2480 DS-0 any to any time-slot cross-connect) Ø Occupies 6 U high (264 mm) rack-space and is a complete 19 -inch standalone unit that provides a 64 Kbps time-slot (DS-0) cross-connect fabric for up to 80 E 1 ports 2

Features and Highlights Ø Ø Ø Ø Ø 1+1 Control Card Processor Redundancy 1+1 Cross-Connect / TSI Redundancy 1+1 Timing (Synchronization Clock) Redundancy. Offers “user selectable” clock / timing synchronization priority. 1+1 -48 V DC Power Supply Redundancy (Dual Power Input allows the equipment to be powered from two separate -48 V DC sources The Dual Power Inputs allow the equipment to be powered from two separate power sources. AC input external adapter is an optional for AC mains operation Bit Error Rate (BER) monitoring BER thresholds to generate BER alarms automatically whenever alarm limits are exceeded Telnet remote access. SSH for secured remote access SNMP traps Maintains Access Security Log. 3

Features and Highlights Ø USB and RS 232, Interface for local connection through the serial interface to the “Network Control and Management Software” Ø User Selectable Internal, External and Loop-timed clock synchronization priority options Ø Local and remote loopback facility. System Access, Control and Management Options Ø Telnet Ø SSH Ø CLI Control Interface (Hyper. Terminal or VT 100) Ø SNMP V 2 Traps (MIB File provided) Ø GUI (Graphical User Interface). 4

OAM: Operation and Management Ports Ø RS 232 Serial Port Ø USB COM Port Ø 10/100 Base. T Ethernet for remote access. 5

Synchronization Timing Options Internal Clock, Loop-Timed Clock, External Clock. User selectable synchronization priority Synchronization Sources Internal Clock, span clock timing derived from incoming HDB 3 links (Loop-Timed), External Clock, 75 Ohms (TTL), 2. 048 Mbits and 120 Ohms (Bits clock) Default Option Internal Clock (Stratum 3) 6

Status Monitoring Ø Synchronization Clock Selection Ø Status of alarms Ø Enabled / Disabled status of 2. 048 Mbps E 1 ports Ø Monitoring the 80 Port E 1 DACS status and configuration Ø Monitoring of E 1 Link status: LOS, LOF, AIS, ES, SES, UAS. Alarm Status and Monitoring Ø Loss of incoming signal at all 2. 048 Mbps E 1 Ports Ø Configuration error alarm. 7

System Access, Control and Management Options Ø Telnet Ø SSH Ø CLI Control Interface (Hyper. Terminal or VT 100) Ø SNMP V 2 Traps (MIB File provided). OAM: Operation and Management Ports Ø RS 232 Serial Port Ø USB COM Port Ø 10/100 Base. T Ethernet for remote access. 8

Security and Protection Ø Secured Access via SSH V 2 Ø Password Protection: Password Protection in compliance with the mandatory clauses of the GR-815 -CORE-2 specifications for secured access control. Ø Logging: Maintains a log of all successful and un-successful attempts. Logged information includes the ID and the IP address of the accessing entities. Alerts the administrator if the un-successful logging attempts exceed 3. Ø Security Audit: All access logs for up to 30 days are maintained for security audit purposes. Ø Security log entry of any request or activity including that user-ID (including IP address, if applicable), to establish user accountability Ø Report Generation / Audit Trail Ø Security Administration. 9

LED Indication Ø 1 to 80 E 1 Ports LED indicators Ø 5 V DC present Ø -48 V DC present Ø Configuration error. External Alarm - Contact Closures Ø 1 Alarm relay Type - Form “C” 10

Application Diagram ISP Digital Cross Connect Application - Providing fractional E 1 s’ to subscribers Fractional E 1 channels Internet To Switch or Router E 1 Fractional E 1 VCL-MX Version 6 80 E 1 DXC Fractional E 1 Aggregates fractional E 1 channels to a single E 1 11

Application Diagram Backhaul-Cellular Application using VCL-MX Version 6 - DXC Cell Site MTSO Switch Cell Site 12

Thank You for your attention For more details visit us at our Website at http: //www. valiantcom. com U. K. U. S. A. INDIA Valiant Communications (UK) Ltd 1, Acton Hill Mews, 310 -328 Uxbridge Road, London W 3 9 QN, United Kingdom E-mail: gb@valiantcom. com Website: http: //www. valiantcom. com 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 Valiant Communications Limited 71/1, Shivaji Marg, New Delhi - 110015, India E-mail: mail@valiantcom. com Website: http: //www. valiantcom. com 13