Chapter 20 - Fibre Teleprotection
Channel 1 Communication
message (IEEE C37 .94)
Comms Mode
IEEE C37.94
Channel 2 Communication
message (IEEE C37 .94)
Comms Mode
Standard
IEEE C37.94
Relay Power Up
Fixed Pulse
Figure 277: IM64 communications mode and IEEE C37.94 alarm signals
512
Error in Receive
Message Info
Error in Transit
Message Info
Channel Mismatch
Error in Receive
Message Info
Error in Transit
Message Info
Channel Mismatch
S
Q
R
D
S
Q
R
D
1
&
P543i/P545i
Ch1 Signal Lost
Ch1 Path Yellow
Ch1 Mismatch RxN
IEEE C37.94
Ch2 Signal Lost
Ch2 Path Yellow
Ch2 Mismatch RxN
Comms Changed
V02504
P54x1i-TM-EN-1