Features and Highlights
- End-to-end transmission delay (latency) of less than 5ms on IEEE C37.94 transmission link
- Symmetrical latency on the transmit and the receive paths
- SDH / SONET quality “jitter” and “wander” with “zero” transmission errors
- Multiple, integrated clock synchronization options include:
- Internal OCXO Disciplined Clock
- GPS — Integrated GPS (ITU-T G.811) Complaint Primary Reference Clock
- External 1PPS, 2.048MBits, 10MHz Clock
IEEE C37.94 Interface Specifications Option #1:
- Interfaces per unit: 4 (4 Tx, 4 Rx)
- Standards: IEEE C37.94
- Optical connector: ST
- Optical Transmitter: LED
- Optical: 820nm/850nm Multi-Mode
IEEE C37.94 Interface Specifications Option #2:
- Interfaces per unit: 4 (4 Tx, 4 Rx)
- Standards: Modulation as per IEEE C37.94
- Optical connector: LC (SFP)
- Optical Transmitter: Laser
- Optical: 820nm/850nm Multi-Mode, 1310nm/ 1550nm Single Mode
Network Port Specification:
| Interface Type |
10/100 Base-T/Tx, Auto MDI-X |
| Connector |
RJ-45 (F) |
| Compliance |
IEEE-802.3 |
OAM Port Specification:
| Interface Type |
10/100/1000 Base-T/Tx, Auto MDI-X |
| Supported Protocols |
SSH, Telnet, ARP, SCP, TFTP, SFTP |
| Connector |
RJ-45 (F) |
| Compliance |
IEEE-802.3 |
Access and Control Interfaces:
- Ethernet — SSH and Telnet with clear-text disable option (clear-text disabled by default)
- USB
Security:
- Secure Boot
- Encrypted Firmware Updates
- SNMPv2 and SNMPv3 trap generation, along with LED and external alarm indication
- Password protection with password strength monitor
- RADIUS Password Authentication
- SSH (Secure Access Control) with encrypted Password Protection
Power Supply Options:
- Redundant 1+1, 48VDC (Input range 18VDC to 60VDC).
Chassis Type:
- 19-Inch, 1U, Corrosion Resistant Aluminium Enclosure
Physical Dimensions and Weight:
- Width x Depth x Height: 437mm x 413mm x 44mm
- Weight: 3.0Kg
CE Compliance:
- Low Voltage Directive 2014/35/EU
- Electromagnetic Compatibility 2014/30/EU
Other Regulatory Compliances:
- RoHS
- CE Marking
- Complies with FCC Part 68 and EMC FCC Part 15
Applications:
The VCL-2711, IEEE C37.94 over Ethernet / MPLS-TP / 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 requiring the tiresome task of having to replace and rewire the existing C37.94 Relays which need to be inter-connected to remote substations inter-connected over Ethernet / MPLS-TP / IP-MPLS transmission links.
By installing the VCL-2711, the existing C37.94 Protection Relays can be migrated from an SDH / SONET transmission network to an
Ethernet / MPLS-TP / IP-MPLS transmission network with no degradation or compromise in the reliability or the performance of the
C37.94 interfaces.