IRIG-B to NTP Time Server
IRIG-B to NTP Time Server
IRIG-B to NTP Time Server
IRIG-B to NTP Time Server


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VCL-3086, IRIG-B to NTP Time Server

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The VCL-3086, IRIG-B to NTP Time Server is designed to provide an NTP time source that is locked to an IRIG-B input reference to provide NTP / SNTP time synchronization to private networks such as Railways and Metro (ticketing and platform) networks, Airports and Air-Traffic Control facilities, Electric Sub-Stations, Power Distribution and Transmission companies, Oil and Gas Utilities, ISPs, Cable TV and Campus networks that are required to maintain a complete isolation frompublic networks for security reasons. VCL-3086 locks to an IRIG-B (Un-Modulated IRIG-B 004) input to provide NTP time output on a 10/100 BaseT Ethernet Port which can be used to serve various types of NTP / SNTP clients / slaves in the network.

VCL-3086 is equipped with a highly accurate, TCXO to provide a high stability holdover clock in the event of unavailability of the Input IRIG-B signal failure, or temporary loss of reception in a totally isolated network.

VCL-3086 provides remote management and monitoring facility with a password-based access using SSH as well as MD5 authentication to ensure operational reliability and security. Additional features include remote login and remote firmware upgrade (file transfer) capabilities.

VCL-3086 includes complete SNMP monitoring as well as support for enterprise directory services for user authentication, internal and external logging and monitoring of alarm and error messages through Syslog ensures a high level of system manageability. Other features include DHCP for installation convenience and support concurrent IPv4/IPv6 networks to provide NTP time and frequency synchronization.

Performance:

The VCL-3086 provides a 10/100 BaseT Industrial Ethernet NTP Port that meets and complies with EN61000-4-5 Level 3 specifications making it suitable for the equipment to be installed in harsh industrial environments, which include Electric Sub-Stations, Railway and Metro Networks. VCL-3086 is capable of servicing up to 3,000 NTP requests per second.

Monitoring and Management:

The VCL-3086 can be managed by Graphical User Management Interface. A text based and menu driven setup utility is also available via Telnet or SSH. An optional Graphical User Network Management Interface (NMS) allows multiple systems installed on a network to be monitored and configured from a single or multiple management locations.

Features and Highlights:

  • High Accuracy IRIG-B time reference for SCADA applications
  • 1 x 10/100 Mbit/s, RJ-45 NTP (Ethernet) interface
  • High bandwidth NTP performance
  • Services up to 3,000 NTP requests per second
  • May be used to provide synchronization to up to 15,000 NTP and SNTP clients.
  • Supports Unicast, Multicast and Broadcast
  • Leap Second correction support
  • MD5 authentication for NTP clients
  • Meets and complies with EN61000-4-5 Level 3 specifications.
  • Alert notifications via SNMP Traps, SNMPv2, SNMPv3
  • Supported network protocols: IPv4, IPv6, SSH, TELNET, SFTP, SYSLOG
  • Secure network management: clear text enable or disable options
  • Status LED indication for IRIG-B Lock and Active Status
  • Temperature Compensated quartz oscillators (TCXO) hold-over

Application Diagram:

IRIG-B to NTP Time Server

IRIG-B (Unmodulated) Input Specifications:

  • IRIG-B Timecode Support: IRIG-B 004 [100pps, DCLS signal, no carrier CF, SBS, BCD (Time of Year), BCD (Year)]
  • Support 0-3 V and 0-5 V IRIG-B 004 Input DCLS signal

Holdover Clock:

  • TCXO (Temperature Compensated Crystal Oscillator)

Synchronization Input:

  • IRIG-B Un-Modulated (BNC) 50 Ohms
  • IRIG-B Un-Modulated 850nm, Multi-Mode, ST Connector

NTP Output:

  • 1 x 10/100Mbps NTP / SNTP Interface

Management and Monitoring Software:

  • Telnet / SSH (option to disable clear text communication to comply with NERC security requirements)
  • GUI (Graphical User Interface) - Runs on any PC operating on Windows 10 or higher OS.

Security and Protection:

  • Password Protection with password strength monitor
  • SSH

Standards & Compliance:

  • IEC - EMC – Certified to EN 55032: CISPR 32, EN 55024:2005
  • RoHS, CE – 2001/95/EC, 2006/95/EC, EN60950-1, EN61000-6-2, EN61000-6-4
  • FCC – FCC Part 15 B Class A: Conducted Emission test on Power Line
  • FCC Part 15 B Class A: Radiated Emission >1 GHz FCC, 6 GHz, on Power Line.

Network Time Protocol:

  • NTP v2, (RFC 1119), NTP v3 (RFC 1305), NTP v4, (RFC 5905), SNTP v3 (RFC 1769), SNTP v4 (RFP 2030), MD5, SHA1 Authentication
  • Internet Protocol: IPv4/IPv6
  • NTP version 4.2.8p7 or higher
  • Time Protocol: TIME (RFC 868)
  • Daytime Protocol: DAYTIME (RFC 867)
  • Supports Unicast, Multicast and Broadcast

Local / Remote Management and Monitoring Ports:

  • USB Serial Port
  • 10/100BaseT Ethernet RJ45
  • Telnet / SSH (option to disable clear text communication to comply with NERC security requirements)
  • CLI Control Interface (HyperTerminal or VT100)
  • SNMPv2, SNMPv3 Traps (MIB files provided)
  • Syslog, HTTP, HTTPS, TCP, UDP, FTP
  • GUI (Graphical User Interface) - Runs on any PC operating on Windows 10 or higher OS.
Mechanical Drawing (PDF)