VCL-2711, IEEE C37.94 over IP / MPLS / Ethernet Transmission Equipment

Description

VCL-2711, IEEE C37.94 over IP / MPLS / Ethernet Transmission Equipment is a ruggedized, robust and sub-station-hardened transmission equipment which converts and transmits up to two IEEE C37.94 Interfaces over an Ethernet / IP / MPLS-TP or MPML-IP link with “SDH / SONET like” performance. The far-end VCL-2711 unit receives the Ethernet data stream and re-converts it back to the IEEE C37.94 Interfaces. The VCL-2711 units must be always used in pairs, with one unit installed on each end of the Ethernet / IP / MPLS link.

Data Sheet IEEE C37.94 over IP / MPLS Transmission Equipment

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VCL-2711, IEEE C37.94 over IP / MPLS equipment can be used in a point-to-point, or a point-to-multipoint topology with absolutely no bit-errors and almost “zero” jitter or wander due to its integrated GPS (ITU-T G.811) Primary Reference Clock and IEEE 1588v2 PTP Slave clock synchronization options.

VCL-2711 C37.94 over IP/MPLS with Integrated
GPS, ITU-T G.811 Primary Reference Clock

VCL-2711 C37.94 over IP/MPLS with Integrated
IEEE 1588v2 PTP Slave

The most common application of the VCL-2711, IEEE C37.94 over IP / MPLS Transmission Equipment is to transmit the existing IEEE C37.94 multi-mode interfaces over an Ethernet / IP / MPLS transmission network. The equipment is designed to enable sub-stations to seamlessly migrate from SDH / SONET transmission networks to more efficient IP / MPLS transmission networks without incurring a large capex or the tiresome task of having to replace and rewire the existing C37.94 Relays which need to be interconnected to the far-end substations over Ethernet / IP / MPLS transmission links.

Highlights:

  • End-to-end transmission delay (latency) of less than 8ms on IEEE C37.94 links
  • Zero transmission errors
  • SDH / SONET quality “Jitter” and “Wander” control
  • Multiple, integrated clock synchronization options include:
    • GPS - Integrated GPS (ITU-T G.811) Primary Reference Clock option. Guaranteed error-free, end-to-end transmission latency of less than 8ms (excluding network delay)
    • PTP Integrated IEEE 1588v2 PTP Slave option. Synchronized to a sub-station IEEE-1588v2 PTP Grandmaster. Guaranteed, error-free end-to-end transmission latency of less than 8ms.

Security:

  • Extremely Secure. The IP / MPLS Protection (Network Transmission) interface is completely / physically separated from the equipment's Operation and Management (OAM) interface as well as the IEEE 1588v2 PTP Slave clock synchronization (SYNC) interface. VCL-2711 never becomes a point of vulnerability in the sub-stations network security owing to the clear separation of the network side interfaces and the sub-station side interfaces.
  • Password controlled access
  • Password strength monitoring
  • Maintains a log-in history with timestamps
  • SSH with (default) clear text disable option
  • Complies with mandatory NERC requirements.

The VCL-2711 meets and complies with the IEC-61850-3, EMI, EMC, Surge and Temperature specifications making it suitable for sub-station installations to provide uninterrupted service even in the most demanding and harsh environments.

Application:

The VCL-2711, IEEE C37.94 over IP / MPLS Transmission Equipment is designed to enable sub-stations to seamlessly migrate from SDH / SONET transmission networks to more efficient IP / MPLS transmission networks without incurring large capex or the tiresome task of having to replace and rewire the existing C37.94 Relays which need to be inter-connected to the far end substations over Ethernet / IP / MPLS transmission links.

By installing the VCL-2711, the existing inter-connected C37.94 Protection Relays can be easily and reliably migrated from SDH / SONET to IP/MPLS transmission networks with no degradation in the reliability or the dependability of the C37.94 interfaces.

C37.94 Interface Specifications:

  • Number of IEEE C37.94 Interfaces per chassis: 2
  • Standard: IEEE C37.94
  • Optical: 820nm / 850nm Multi-Mode
  • Optical Connector, Tx/Rx: ST
  • Optical Transmitter: LED

Integrated GPS Primary Reference Clock*1 Specifications (optional choose either *1 or *2):

  • Integrated GPS / GNSS based ITU-T G.811 Compliant Primary Reference Clock
  • Clock Quality: Stratum 1
  • GPS Antenna Connector: TNC

Integrated IEEE-PTP Slave Clock*2 Specifications (optional choose either *1 or *2):

  • Standard: IEEE 1588v2 Precision Time Protocol
  • Number of PTP Slave interfaces per chassis: 1
  • Connector: 100/1000BaseT Ethernet Interface, RJ45
  • BCMA support. May be used to synchronize to multiple sub-station IEEE 1588v2 PTP Grandmaster sources using “Best Master (BCMA) Clock Algorithm” to enhance the dependability and the reliability of clock synchronization.

Network (Transmission) Interface:

  • 1 x RJ45 (10/100BaseT)
  • 100BaseFX (SFP)

Management and Configuration Interfaces:

  • 1 x RJ45 (10/100BaseT)
  • USB Serial Interface
  • English Text CLI commands

Password and Access Control:

  • Password protection
  • Password strength monitoring
  • SSH
  • SYSLOG

Compliance/ Regulatory:

  • RoHS
  • CE
  • Complies with IEC 61850-3 Surge and Emission Requirements
  • Complies to applicable IEEE and IEC standards
  • Complies with FCC Part 15 and CISPR 32 Class A
  • Operation ETS 300 019 Class 3.2
  • Storage ETS 300 019 Class 1.2
  • Transportation ETS 300 019 Class 2.3
  • Complies with FCC Part 68 and EMC FCC Part 15 and CISPR 32 Class A
  • FCC Part 15 B Class A Standard
    • Conducted Emission (Test Method : CISPR22 / EN55032 Class A)
    • Radiated Emission (Test Method ANSI C63.4)