CHAPTER 2: PRODUCT DESCRIPTION
SPECIFICATIONS
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
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The following specifications apply to filter interface modules implemented before January 2012.
TYPICAL LINK DISTANCE
CONNECTOR LOSSES (Total of both ends)
ST connector:
0.7 dB (each)
FIBER LOSSES
820 nm multimode:
3 dB/km
1300 nm, Multimode 62.5/125
μ
m
-16 dBm
-32 dBm
16 dBm
-8 dBm
50/125
μ
m
-20 dBm
12 dBm
1300 nm, Single
mode
9/125
μ
m
-15 dBm
-32 dBm
17 dBm
-8 dBm
1300 nm Laser,
Single mode
9/125
μ
m
0 dBm
-34 dBm
34 dBm
-8 dBm
1550 nm Laser,
Single mode
9/125
μ
m
5 dBm
-34 dBm
39 dBm
-10 dBm
Emitter, fiber type
Transmit
power
Received
sensitivity
Power budget Maximum optical
input power
820 nm LED, Multimode
–20 dBm
–30 dBm
10 dB
–7.6 dBm
1300 nm LED, Multimode
–21 dBm
–30 dBm
9 dB
–11 dBm
1300 nm ELED, Single mode
–23 dBm
–32 dBm
9 dB
–14 dBm
1300 nm Laser, Single mode
–1 dBm
–30 dBm
29 dB
–14 dBm
1550 nm Laser, Single mode
+5 dBm
–30 dBm
35 dB
–14 dBm
The power budgets are calculated from the manufacturer’s worst-case transmitter power and worst case receiver
sensitivity.
The power budgets for the 1300 nm ELED are calculated from the manufacturer's transmitter power and receiver
sensitivity at ambient temperature. At extreme temperatures these values deviate based on component tolerance.
On average, the output power decreases as the temperature is increased by a factor of 1 dB / 5 °C.
Emitter, fiber type
Cable type
Connector
type
Typical distance
Before
January
2012
From
January
2012
820 nm LED,
multimode
62.5/125
μ
m
ST
1.65 km
2 km
50/125
μ
m
ST
1.65 km
2 km
1300 nm LED,
multimode
62.5/125
μ
m
ST
4 km
5 km
50/125
μ
m
ST
4 km
5 km
1300 nm ELED,
single mode
9/125
μ
m
ST
11.4 km
20 km
1300 nm Laser,
single mode
9/125
μ
m
ST
64 km
65 km
1550 nm Laser,
single mode
9/125
μ
m
ST
105 km
125 km
Typical distances listed are based on the following assumptions for system loss. As actual losses vary from one
installation to another, the distance covered by your system can vary.
Emitter, fiber type
Cable type
Transmit power Received
sensitivity
Power budget Maximum
optical input
power