GE Multilin
F60 Feeder Protection System
2-15
2 PRODUCT DESCRIPTION
2.2 SPECIFICATIONS
2
2.2.8 COMMUNICATIONS
RS232
Front port:
19.2 kbps, Modbus
®
RTU
RS485
1 or 2 rear ports:
Up to 115 kbps, Modbus
®
RTU, isolated
together at 36 Vpk
Typical distance:
1200 m
Isolation:
2 kV
ETHERNET (FIBER)
ETHERNET (10/100 MB TWISTED PAIR)
Modes:
10 MB, 10/100 MB (auto-detect)
Connector:
RJ45
SNTP clock synchronization error: <10 ms (typical)
ETHERNET SWITCH FIBER OPTIC PORTS
Maximum fiber segment length calculation:
The maximum fiber segment length between two adjacent
switches or between a switch and a device is calculated as fol-
lows. First, calculate the optical power budget (OPB) of each
device using the manufacturer’s data sheets.
where OPB = optical power budget,
P
T
= transmitter output power,
and
P
R
= receiver sensitivity.
The worst case optical power budget (OPB
WORST
) is then calcu-
lated by taking the lower of the two calculated power budgets, sub-
tracting 1 dB for LED aging, and then subtracting the total insertion
loss. The total insertion loss is calculated by multiplying the num-
ber of connectors in each single fiber path by 0.5 dB. For example,
with a single fiber cable between the two devices, there will be a
minimum of two connections in either transmit or receive fiber
paths for a total insertion loss of 1db for either direction:
The worst-case optical power budget between two type 2T or 2S
modules using a single fiber cable is:
To calculate the maximum fiber length, divide the worst-case opti-
cal power budget by the cable attenuation per unit distance speci-
fied in the manufacturer data sheets. For example, typical
attenuation for 62.5/125
μ
m glass fiber optic cable is approxi-
mately 2.8 dB per km. In our example, this would result in the fol-
lowing maximum fiber length:
The customer must use the attenuation specified within the manu-
facturer data sheets for accurate calculation of the maximum fiber
length.
ETHERNET SWITCH 10/100BASE-T PORTS
Connector type:
RJ45
MAXIMUM 10 MBPS ETHERNET SEGMENT LENGTHS
Unshielded twisted pair: 100 m (328 ft.)
Shielded twisted pair: 150 m (492 ft.)
MAXIMUM STANDARD FAST ETHERNET SEGMENT LENGTHS
10Base-T (CAT 3, 4, 5 UTP): 100 m (328 ft.)
100Base-TX (CAT 5 UTP):100 m (328 ft.)
Shielded twisted pair: 150 m (492 ft.)
PARAMETER
FIBER TYPE
10MB MULTI-
MODE
100MB MULTI-
MODE
1
1. UR-2S and UR-2T only support 100 Mb multimode
100MB SINGLE-
MODE
Wavelength
820 nm
1310 nm
1310 nm
Connector
ST
ST
SC
Transmit power
–20 dBm
–20 dBm
–15 dBm
Receiver sensitivity
–30 dBm
–30 dBm
–30 dBm
Power budget
10 dB
10 dB
15 dB
Maximum input
power
–7.6 dBm
–14 dBm
–7 dBm
Typical distance
1.65 km
2 km
15 km
Duplex
full/half
full/half
full/half
Redundancy
yes
yes
yes
OPB
P
T MIN
(
)
P
R MIN
(
)
–
=
Total insertion loss
number of connectors
0.5 dB
×
=
2
0.5 dB
×
=
1.0 dB
=
OPB
WORST
OPB
1 dB (LED aging)
–
total insertion loss
–
=
10
dB
1
dB
–
1
dB
–
8
dB
=
Maximum fiber length
OPB
WORST
(in dB)
cable loss (in dB/km)
-------------------------------------------------------
=
8 dB
2.8 dB/km
---------------------------
=
2.8
km
=
Summary of Contents for F60 UR Series
Page 2: ......
Page 4: ......
Page 30: ...1 20 F60 Feeder Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 48: ...2 18 F60 Feeder Protection System GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Page 126: ...4 30 F60 Feeder Protection System GE Multilin 4 2 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 354: ...5 228 F60 Feeder Protection System GE Multilin 5 9 TESTING 5 SETTINGS 5 ...
Page 382: ...6 28 F60 Feeder Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 398: ...8 8 F60 Feeder Protection System GE Multilin 8 2 FAULT LOCATOR 8 THEORY OF OPERATION 8 ...
Page 414: ...A 14 F60 Feeder Protection System GE Multilin A 1 PARAMETER LIST APPENDIXA A ...
Page 492: ...B 78 F60 Feeder Protection System GE Multilin B 4 MEMORY MAPPING APPENDIXB B ...
Page 530: ...D 10 F60 Feeder Protection System GE Multilin D 1 IEC 60870 5 104 APPENDIXD D ...
Page 542: ...E 12 F60 Feeder Protection System GE Multilin E 2 DNP POINT LISTS APPENDIXE E ...
Page 558: ...x F60 Feeder Protection System GE Multilin INDEX ...