GE Multilin L30 Line Current Differential System 2-33
2 PRODUCT DESCRIPTION 2.5 SPECIFICATIONS
2
Compensated difference in transmitting and receiving (channel
asymmetry) channel delays using GPS satellite clock: 10 ms
2.5.10 ENVIRONMENTAL
AMBIENT TEMPERATURES
Storage temperature: –40 to 85°C
Operating temperature: –40 to 60°C; the LCD contrast can be
impaired at temperatures less than –
20°C
HUMIDITY
Humidity: operating up to 95% (non-condensing) at
55°C (as per IEC60068-2-30 variant 1, 6
days).
OTHER
Altitude: 2000 m (maximum)
Pollution degree: II
Overvoltage category: II
Ingress protection: IP20 front, IP10 back
Noise: 0 dB
Typical distances listed are based on the follow-
ing assumptions for system loss. As actual losses
vary from one installation to another, the distance
covered by your system may vary.
CONNECTOR LOSSES (TOTAL OF BOTH ENDS)
ST connector 0.7 dB (each)
FIBER LOSSES
820 nm multimode 3 dB/km
1300 nm multimode 1 dB/km
1300 nm single mode 0.35 dB/km
1550 nm single mode 0.25 dB/km
Splice losses: One splice every 2 km,
at 0.05 dB loss per splice.
SYSTEM MARGIN
3 dB additional loss added to calculations to compensate for
all other losses.
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