17.2.12 IRIG-B time synchronization module IRIG-B
SEMOD141102-1 v1
17.2.12.1 Introduction
SEMOD141113-4 v8
The IRIG-B time synchronizing module is used for accurate time synchronizing of
the IED from a station clock.
The precision time protocol (PTP, IEC/IEEE 61850-9-3) input shall be used for
synchronizing when IEC/UCA 61850-9-2LE is used.
17.2.12.2 Design
SEMOD141098-4 v4
The IRIG-B module has two inputs. One input is for the IRIG-B that can handle
both a pulse-width modulated signal (also called unmodulated) and an amplitude
modulated signal (also called sine wave modulated). The other is an optical input
type ST for optical pulse-width modulated signal (IRIG-B 00X). The IRIG-B
module is mounted as a mezzanine card on the Analog digital conversion module
(ADM).
ST
Y2
T
A1
IEC06000304=1=en=Original.ai
IEC06000304 V2 EN-US
Figure 316: IRIG-B PC-MIP board with top left ST connector for optical IRIG-B
00X 820 nm multimode fibre optic signal input and lower left BNC
connector for IRIG-B signal input
1MRK 505 384-UEN A Section 17
IED hardware
Breaker protection REQ650 2.2 IEC 709
Technical manual
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