Teleprotection
Teleprotection over IP/MPLS

Maintenance:

• Manual Loop Test: This feature initiates a “Manual Loop-Test” which verifies the integrity of the transmission link between the “Local” Teleprotection Terminal and the “Remote” Teleprotection Terminal.
• Automatic Loop Test: The Automatic Link Test feature automatically initiates “Periodic Loop Tests” at user programmed intervals to check the integrity of the transmission link between the “Local” Teleprotection Terminal and the “Remote” Teleprotection Terminal.
• Delay Measurement: This feature automatically initiates an end-to-end “Delay Measurement Test” between the “Local” and the “Remote” Teleprotection Terminal through the interconnecting transmission link.

Management and Monitoring:

• RS232 serial, USB serial interfaces for local terminal access
• 10/100BaseT Ethernet Interface for remote access over an IP network
• Encrypted Password Protection
• Telnet - Remote access over IP links
• SSH - Secured remote access using Secure Shell Protocol over IP links
• Graphical User (GUI) Interface
• SNMP Traps and NMS for real time remote monitoring and management over an IP network
• Automatic Link Test feature – link testing at user programmable periodical intervals
• Visual I/O status – LED Display
• Dry contact external alarm relay to connect an external alarm on an annunciator panel, which can be wired up for either NO or NC condition.

Event and Alarm Logging:

• Time-Stamped Alarm Logging
• Time-Stamped Event Logging
• NTP time synchronization option to synchronize time-stamps with NTP Server
• IEEE-1588v2 time synchronization option to synchronize time-stamps with PTP Grandmaster.

Reliability:

• Advanced Communication Protocols to ensure reliable transmission of commands
• Power Supply Immunity to withstand impulse surges and transients of up to 10,000 Volts
• High Quality Relays – withstands voltage 10 kV between coil and contacts (1.2 × 50 μþs)
• 2.5kV RMS - Contact Input / Output Hi-port dielectric strength
• Maximum Switching Voltage: 400V AC or 300V DC
• Optoisolated Command Inputs
• Optoisolated Relay Outputs
• Relays compliant with IEC-255-0-20 / VDE 0435, 0631, 0700, 40013847 standards
• Relays - Mechanical: 10,000,000 operations min. (at 18,000 operations/hour).

Error Detection and Coding:

• Link Loss Detection
• LOS (Loss of Signal) Detection
• Block Command Encoding.