RFL Electronics GARD 8000 - Figure 2-4. GA RD 8000 Conceptual Design

Applications
GARD 8000 SYS RFL Electronics
February 14, 2011 2-6 973.334.3100
The following types of modules occupy a slot in both front and rear chassis slots:
 Power Supply (fixed location in front of chassis), Power Supply I/O (fixed location at rear of
chassis)
 Distance Protection module (The processor part is in the front of chassis, and input
transformers and I/O’s use the corresponding rear slot).
 Current Differential Protection module (The processor part is in the front of chassis, and input
transformers and I/O’s use the corresponding rear slot).
 Digital Fault Recorder module (The processor part is in the front of chassis, and input
transformers and I/O’s use the corresponding rear slot).
 Power Line Carrier module (The processor part is in the front of chassis, and amplifiers with
terminal blocks are at the rear).
The optional GPS receiver is the only module that does not take up a module slot. It is piggy-back
mounted on the Controller Module.
2.3.2 SYSTEM ARCHITECTURE
The GARD 8000 is built up of a number of modules that interact over three internal buses; the control
bus, the logic bus and the comms bus. The Base system always consists of one Controller Module and
one Display With TPS Module, plus one Power Supply Module. These modules have fixed locations
(slots). All other Optional and Functional Modules can be freely placed into any slot in the chassis, and
in any combination the application requires.
HMI
Processor
LOGIC
Processor
MAIN
Ethernet
I/O
Serial
I/O
Front
Panel
IRIG
I/O
Comms
Head
Contact
I/O
I/O
Current
I/O
I/V
I/O
Current
Relay
Module
Distance
Relay
Module
TPS
TPS
Comms
BUS
Control BUS
Logic BUS
Display/TPS
Audio
Comms
Head
Inputs/Outputs
SAT
RX
Ethernet
I/O
Comms
Head
Contact
Figure 2-4. GARD 8000 Conceptual design