GE Multilin
T60 Transformer Protection System
3-27
3 HARDWARE
3.2 WIRING
3
c) 10BASE-FL AND 100BASE-FX FIBER OPTIC PORTS
ENSURE THE DUST COVERS ARE INSTALLED WHEN THE FIBER IS NOT IN USE. DIRTY OR
SCRATCHED CONNECTORS CAN LEAD TO HIGH LOSSES ON A FIBER LINK.
The fiber optic communication ports allow for fast and efficient communications between relays at 10 Mbps or 100 Mbps.
Optical fiber may be connected to the relay supporting a wavelength of 820 nm in multi-mode or 1310 nm in multi-mode
and single-mode. The 10 Mbps rate is available for CPU modules 9G and 9H; 100Mbps is available for modules 9J, 9K, 9L,
9M, and 9N. The 9H, 9K, and 9M modules have a second pair of identical optical fiber transmitter and receiver for redun-
dancy.
The optical fiber sizes supported include 50/125 µm, 62.5/125 µm and 100/140 µm for 10 Mbps. In order to engage or dis-
engage the ST type connector, only a quarter turn of the coupling is required.
3.2.10 IRIG-B
IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices. The
IRIG-B code allows time accuracies of up to 100 ns. Using the IRIG-B input, the T60 operates an internal oscillator with 1
µs resolution and accuracy. The IRIG time code formats are serial, width-modulated codes that can be either DC level
shifted or amplitude modulated (AM). Third party equipment is available for generating the IRIG-B signal; this equipment
can use a GPS satellite system to obtain the time reference so that devices at different geographic locations can be syn-
chronized.
Figure 3–27: OPTIONS FOR IRIG-B CONNECTION
NOTICE
UR-series device
BNC (in)
Receiver
RG58/59 coaxial cable
GPS satellite system
GPS connection
IRIG-B (–)
4A
+
859716A1.CDR
IRIG-B
time code generator
(DC-shift or
amplitude modulated
signal can be used)
4B IRIG-B (+)
BNC (out)
Repeater
To other devices
(DC-shift only)
UR-series device
BNC (in)
Receiver
Twisted-pair cable
GPS satellite system
GPS connection
IRIG-B (–)
4A
+
IRIG-B
time code generator
(DC-shift or
amplitude modulated
signal can be used)
4B IRIG-B (+)
BNC (out)
Repeater
To other devices
(DC-shift only)
Summary of Contents for UR T60
Page 10: ...x T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Page 14: ...xiv T60 Transformer Protection System GE Multilin 0 1 BATTERY DISPOSAL 0 BATTERY DISPOSAL 0 ...
Page 34: ...1 20 T60 Transformer Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 436: ...5 298 T60 Transformer Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 678: ...C 30 T60 Transformer Protection System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 688: ...D 10 T60 Transformer Protection System GE Multilin D 1 IEC 60870 5 104 PROTOCOL APPENDIX D D ...
Page 700: ...E 12 T60 Transformer Protection System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...