Applications
GARD 8000 SYS RFL Electronics
February 14, 2011 2-1 973.334.3100
SECTION 2. APPLICATIONS
2.1 SYSTEM OVERVIEW
The GARD 8000 System is a complete Teleprotection and Relay Terminal for line protection and
transfer trip applications.
2.2 FEATURES
One product for all teleprotection and line protection needs.
High-speed, secure and reliable synchronous communications.
Use as a stand-alone teleprotection channel, line differential protection, distance relay, Power
Line Carrier, or all functions can be combined in one device.
Use 6Uchassis for up to eight functions, or 3U chassis for up to three functions.
Selectable redundancy for power supply, main processor, functional modules and comms
interfaces.
Factory customized programmable logic for specific applications saves commissioning time
and eliminates complex configurations.
Straightforward web browser user interface for settings and diagnostics; no proprietary
application program required.
Optional, built-in GPS receiver provides accurate time tags, independent from any station
clock.
Efficient use of the communications channel; up to 12 x 64 kbps per fiber or connection.
Up to 6 communication interfaces in one 6U device, up to 5 in a 3U; use for redundant
communication paths or to different remote terminals (3 terminal or T-connections).
A wide range of communication interfaces to choose from:
o T1/E1
o RS 232 Async. Dual Channel Module
o RS 449, 56 -768 kbps
o X.21, 64-768 kbps
o V.35, 64-768 kbps
o G.703, co-directional, 64 kbps
o C37.94 fiber
o Fiber, multi-mode or single-mode; up to 80 km
o Audiotone functional module, 2 wire or 4 wire
o Power Line Carrier; ON/OFF or FSK selectable
The communication interfaces can be freely mixed-and-matched; e.g. use a 64 kbps digital
channel as primary and a leased phone line for back-up.