Irig-B Time Synchronization Module Irig-B; Introduction; Design - ABB RED650 Technical Manual

Section 22
IED hardware
22.2.13
22.2.13.1
22.2.13.2
844
Table 642: Line data communication module
Characteristic
Type of LDCM
Type of fiber
Peak Emission Wave length
Nominal
Maximum
Minimum
Optical budget
Graded-index multimode 62.5/125 mm,
Graded-index multimode 50/125 mm
Optical connector
Protocol
Data transmission
Transmission rate / Data rate
Clock source
*) depending on optical budget calculation
**) C37.94 originally defined just for multimode; using same header, configuration and data format as
C37.94

IRIG-B time synchronization module IRIG-B

Introduction

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.
Electrical (BNC) and optical connection (ST) for 0XX and 12X IRIG-B support.

Design

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).
1MRK 505 394-UEN A
Range or value
Short range (SR) Medium range (MR)
Graded-index Singlemode 9/125
multimode µm
62.5/125 µm
820 nm 1310 nm
865 nm 1330 nm
792 nm 1290 nm
13 dB (typical 22 dB (typical
distance about 3 distance 80 km/50
km/2 mile *) mile *)
9 dB (typical
distance about 2
km/1 mile *)
Type ST Type FC/PC
C37.94 C37.94
implementation **)
Synchronous Synchronous
64 kbit/s 64 kbit/s
Internal or Internal or derived
derived from from received signal
received signal
Line differential protection RED650 2.2 IEC
Technical manual
SEMOD141102-1 v1
SEMOD141113-4 v8
SEMOD141098-4 v4