
CHAPTER 3: TIME PROTOCOLS
REAL-TIME CLOCK
8 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE
3-5
DST START HOUR
Range: 0 to 23
Default: 2
DST END MONTH
Range: January to December (all months)
Default: Not Set
DST END WEEK
Range: 1st, 2nd, 3rd, 4th, Last
Default: Not Set
DST END DAY
Range: SUN to SAT (all days of the week)
Default: Not Set
DST END HOUR
Range: 0 to 23
Default: 2
IRIG-B
IRIG-B is available in all 8 Series relays. A failure on IRIG-B triggers an event and a target
message.
FASTPATH:
Note that IRIG-B is auto detected. The signal type is detected in the hardware, so there are
no configurable options.