ABB RELION 670 Series Technical Manual page 1338

Section 22
IED hardware
22.2.18.3 Technical data
Table
1045:
Function
Max antenna cable attenuation
Antenna cable impedance
Lightning protection
Antenna cable connector
Accuracy
22.2.19 IRIG-B time synchronization module IRIG-B
22.2.19.1 Introduction
The IRIG-B time synchronizing module is used for accurate time synchronizing of the IED from a
station clock.
The Pulse Per Second (PPS) input shall be used for synchronizing when IEC 61850-9-2LE is used.
Electrical (BNC) and optical connection (ST) for 0XX and 12X IRIG-B support.
22.2.19.2 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).
1332
GPS – Antenna and cable
1MRK 502 066-UUS B
Value
26 db @ 1.6 GHz
50 ohm
Must be provided externally
SMA in receiver end
TNC in antenna end
+/-1μs
Technical manual
SEMOD55690-1 v1
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