Technical data

Environmental requirements
Condition Operational Non-operational
Ambient temperature 0°C to 40°C
32°F to 104°F
-25°C to 70°C
-13°F to 158°F
Relative humidity
(non-condensing)
5% to 93% at 40°C (104°F) 10% to 95% at 70°C (158°F)
Altitude (above sea
level)
0 to 3000 m
0 to 9,842 feet
0 to 12,000 m
0 to 39,370 feet
Shock 20 G, 11 ms, half-sine wave 20 G, 11 ms, half-sine wave, 3/eg axis
Vibration 1.0 G sine, 0.5 Grms random, 5-500 Hz 2.4 G sine, 1.1 Grms random, 5-500 Hz
Air flow Maximum: 347 cmh (204 cfm) N/A
Operating noise 48.0 dBA N/A
Power supply specifications (per PSU)
Power supply
model
Maximum
output power
rating (DC)
Input voltage Input line
frequency
Maximum
input current
Input line
protection
Maximum
inrush
current
XBR-1100WP
SAC-R
1100 W 100 - 240 V
(nominal)
90 - 264 V
(range)
50 - 60 Hz
(nominal)
12-5 A Line Fused 40 A peak for
any initial
current surge
at cold or
warm start
Power consumption (typical configuration)
The Brocade 7840 does not support a DC power supply.
Model name @100 VAC input @200 VAC input @-48 VDC input Minimum
number of
power supplies
Notes
Brocade 7840 3.90 A
388 W
1524 BTU/hr
1.98 A
383 W
1307 BTU/hr
N/A 2 x AC 1100 W SR Optics, fans
at nominal
speed, 2PSUs
Brocade 7840 Technical Specifications
Brocade 7840 Extension Switch Hardware Reference Manual 49
53-1003127-02