GE b30 User Manual

2-26 B30 Bus Differential System GE Multilin
2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION
2
Compensated difference in transmitting and receiving (channel
asymmetry) channel delays using GPS satellite clock: 10 ms
2.4.10 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
1300 nm LED,
multimode
62.5/125 μm ST 4 km 5 km
50/125 μm ST 4 km 5 km
1300 nm ELED,
single mode
9/125 μm ST 11.4 km 20 km
1300 nm Laser,
single mode
9/125 μm ST 64 km 65 km
1550 nm Laser,
single mode
9/125 μm ST 105 km 125 km
EMITTER TYPE CABLE
TYPE
CONNECTOR
TYPE
TYPICAL DISTANCE
BEFORE
JANUARY
2012
FROM
JANUARY
2012
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.
NOTE

GE b30 Specifications

General

Model	b30
Manufacturer	GE
Coil Voltage	N/A (Solid State Relay)
Coil Power	N/A (Solid State Relay)
Mechanical Life	N/A (Solid State Relay)
Electrical Life	N/A (Solid State Relay)