Mellanox Grid Director 4700 Installation Manual
35
3.15.6
sPSU-S Power Supply LEDs
Table 22: sPSU-S Power Supply LEDs
Indication
Description
DC ON (Green)
ON – Indicates that the DC power source is present.
AC ON (Green)
ON – Indicates that the AC power source is present.
3.16
Environmental Specifications
Table 23: 4700 Environmental Specifications
Ambient Operating Temperature
32° to 113°F (0° to 45°C)
Operating Humidity
15 to 80%, non-condensing
Operating Altitude
0 to 9843 ft (3000m)
Storage Temperature
-13° to 158°F (-25° to +70°C)
Storage Humidity
5 to 90% non-condensing
Storage Altitude
0 to 15,000 ft (4570m)
3.17
Acoustic Data
Acoustic noise is reported in accordance with ISO 7779 [ECMA 74] standard.
3.18
Reliability (MTBF)
The Mean Time between Failures (MTBF) for individual switch components is shown in the
following tables. These figures indicate the mean elapsed time until a single component fails
in the module, whether or not that failure impacts the operation of the switch. Note that in
many cases redundant modules can be configured, which dramatically increases the overall
system Mean Time between Critical Failures (MTBCF).
MTBF per 4700 model types:
Model A: The system configuration is a fully populated chassis with 18 line cards, 9 fabric
cards, 3 power supplies, 1 Management Board and 2 fan modules (Horizontal and Vertical
drawers).
Model B: The system configuration is a fully populated chassis with 18 line cards, 9 double
fabric cards, 4 power supplies, 1 Management Board and 2 fan modules (Horizontal and
Vertical drawers).
Table 24: Reliability (MTBF) Specifications
4700 QDR Director
FPMH
MTBF (Hours)
Model A
66.308
15,081
Model B
75.431
13,257
