Environmental - GE B30 Instruction Manual

2 PRODUCT DESCRIPTION
TYPICAL LINK DISTANCE
EMITTER TYPE CABLE
TYPE
820 nm LED, 62.5/125 μm
multimode
1300 nm LED, 62.5/125 μm
multimode
1300 nm ELED, 9/125 μm
single mode
1300 nm Laser, 9/125 μm
single mode
1550 nm Laser, 9/125 μm
single-mode
Typical distances listed are based on the follow-
ing assumptions for system loss. As actual losses
NOTE will vary from one installation to another, the dis-
tance covered by your system may vary.
CONNECTOR LOSSES (TOTAL OF BOTH ENDS)
ST connector 2 dB
FIBER LOSSES
820 nm multimode 3 dB/km
1300 nm multimode 1 dB/km
1300 nm singlemode 0.35 dB/km
1550 nm singlemode 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.
Compensated difference in transmitting and receiving (channel
asymmetry) channel delays using GPS satellite clock: 10 ms
AMBIENT TEMPERATURES
Storage temperature: –40 to 85°C
Operating temperature: –40 to 60°C; the LCD contrast may 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,
6days).
GE Multilin
CONNECTOR TYPICAL
TYPE DISTANCE
ST 1.65 km
ST 3.8 km
ST 11.4 km
ST 64 km
ST 105 km
B30 Bus Differential System
OTHER
Altitude: 2000 m (maximum)
Pollution degree: II
Overvoltage category: II
Ingress protection: IP20 front, IP10 back
2.2 SPECIFICATIONS

2.2.10 ENVIRONMENTAL

2-17
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