Hitachi Relion 670 Series Product Manual page 39

Phasor measurement unit RES670
Version 2.2
Galvanic RS485 serial communication module
The Galvanic RS485 communication module (RS485) is
used for DNP3.0 and IEC 60870-5-103 communication. The
module has one RS485 communication port. The RS485 is
a balanced serial communication that can be used either in
2-wire or 4-wire connections. A 2-wire connection uses the
same signal for RX and TX and is a multidrop
communication with no dedicated Master or slave. This
variant requires however a control of the output. The 4-wire
connection has separated signals for RX and TX multidrop
communication with a dedicated Master and the rest are
slaves. No special control signal is needed in this case.
GPS time synchronization module GTM
This module includes a GPS receiver used for time
synchronization. The GTM has one SMA contact for
connection to an antenna. It also includes an optical PPS
ST-connector output.
IRIG-B Time synchronizing module
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 is supported.
Electrical (BNC) and optical connection (ST) for 0XX and
12X IRIG-B support.
Transformer input module TRM
The transformer input module is used to galvanically
separate and adapt the secondary currents and voltages
generated by the measuring transformers. The module has
twelve inputs in different combinations of currents and
voltage inputs.
Ring lug or compression type connectors can be ordered.
Hitachi Energy
Layout and dimensions
SEMOD158664-5 v3
Dimensions
M14851-3 v5
SEMOD141113-4 v9
IEC08000163 V3 EN-US
Figure 7. Case with rear cover
M14875-3 v10
IEC08000165 V3 EN-US
Figure 8. Case with rear cover and 19" rack mounting kit
© 2017 - 2022 Hitachi Energy. All rights reserved
1MRK 511 410-BEN P
IP14539-1 v1
IP14826-1 v1 M15243-4 v7
IEC08000163‐3‐en.vsdx
IEC08000165‐3‐en.vsdx
39