Allied Telesis AT-GS924GB - Manual (Page 46)

Technical Specifications
34
Safety and Electromagnetic Emissions Certifications
Safety: UL 1950 (UL/cUL), EN60950 (TUV), EN60825
EMI: FCC Class A, EN55022 Class A, VCCI Class A,
C-TICK, EN61000-3-2, EN61000-3-3
Immunity: EN55024
Reliability MTBF – 26,000 hours, system (includes
PCBA at 114,000 hours, fan module at
50,000 hours and power module at 99,000
hours)
The MTBF was predicted using Telcordia
SR-332 parts count method for a ground
benign environment at 30ºC.
MTTR – ½ hour for replacement unit on site;
24 hours for advance replacement
shipment
DOA Rate
< 0.1% for out of box (failure within 24
hours)
< 2.7% for early life (failure within 30 days)