Cisco PWR-2955-AC= Datasheet download pdf (Page 16)

Cisco Systems, Inc.

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Environmental ranges • Recommended operating temperature range: –40 to 140 F (–40 to 60 C)

• Recommended storage temperature range: –40 to 185 F (–40 to 85 C)

• Operating relative humidity: 10 to 95% (noncondensing)

• Operating altitude: 9843 ft (3000 m) @ 104 F (40 C)

• Storage altitude: Up to 29,500 ft (9000 m)

• Shock: 50 g trapezoidal shock (meets or exceeds ASTM D3332)

• Vibration: 500 Hz (meets or exceeds MIL-STD-810, Method 514.4)

Power requirements • External 24V (dual-redundant DC input, screw-down connectors)

• Power consumption: 23W maximum, 78.53 BTU/hour

• 18V minimum; 32V maximum

Predicted mean time between

failure (MTBF)

• WS-C2955T 235,022 hours

• WS-C2955C 206,378 hours

• WS-C2955S 205,115 hours

• Telcordia SR-332 Gf

Fiber port speciﬁcations • 100BASE-FX (MT-RJ connectors @ 1,300 nm):

– Optical receiver sensitivity: -30 dBm

– Optical transmitter power: -19 to -14 dBm

– Maximum distance: 2 km

• 100BASE-LX (LC connectors @ 1,300 nm):

– Optical receiver sensitivity: -38 to -31 dBm

– Optical transmitter power: -15 to -8 dBm

– Maximum distance: 15 km

Regulatory Agency Approvals

Safety certiﬁcations

Hazardous locations

• CE Marking

• UL 60950

• CSA 22.2/60950

• TUV GS: CB Report to IEC 60950

• UL 508

• CSA 22.2/142

• AS/NZS 3260

• NOM

• UL 1604—Class I, Div 2 Group A, B, C, D

• CSA 22.2/213—Class 1, Div 2 Group A, B, C, D

• EN 50021—Class I, Zone 2

Table 2 Product Speciﬁcations

Feature Description

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Cisco PWR-2955-AC= Datasheet Page 16