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Technical Specs

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Table Of Contents
Environmental requirements
TABLE 1 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)
10% to 85% at 40°C (104°F) 5% to 80% at 70°C (158°F)
Altitude (above sea level) 0 to 3000 m (9,842 ft.) 0 to 12000 m (39,370 ft)
Shock VDX 6940-36Q - 15 G , 11 ms, half-sine wave
VDX 6940-144S - 15 G , 11 ms, half-sine wave
VDX 6940-36Q - 33 G, 11 ms, half-sine wave, 5/ea Axis
and 33 G 6ms, Trapezoidal, 1/ea axis
VDX 6940-144S - 33 G, 11 ms, half sine wave 5/ea
Axis, and 33 G 6ms, Trapezoidal, 1/ea axis
Vibration VDX 6940-36Q - 1 G sine, 0.5 gms random, 5-500 Hz
VDX 6940-144S - 1 G sine, 0.5 gms random, 5-500 Hz
VDX 6940-36Q - 2.4 G sine, 1.1 gms random, 5-500
Hz
VDX 6940-144S - 2.4 G sine, 1.1 gms random, 5-500
Hz
Airow VDX 6940-36Q
• Maximum: 159 cmh (94 cfm)
• Minimum: 65 cmh (38 cfm)
VDX 6940-144S
• Maximum: 370 cmh (218 CFM)
• Minimum: 95 cmh (56 CFM)
N/A
Heat dissipation Refer to BTU/hr data under "Power consumption (typical
conguration)" and "Power consumption (maximum
conguration)" for various power inputs.
N/A
Operating noise VDX 6940-36Q
• Maximum: 88 dBA (8.8 Bels)
• Nominal: 71 dBA (7.1 Bels)
VDX 6940-144S
• Maximum 87 dbA (8.7 Bels)
• Nominal: 69 dBA (6.9 Bels)
N/A
Power supply specications (per PSU)
Power supply
model
Maximum output
power rating (DC)
Input voltage Input line
frequency
Maximum input
current
Input line
protection
Maximum inrush
current
AC to DC - VDX
6940-36Q
XBR-500WPSAC-
01-F
or
XBR-500WPSAC-
01-R
500 W 100 - 240 VAC
(nominal)
90 - 264 VAC
(range)
50 - 60 Hz
(nominal)
50-60 Hz (range)
6 A @ 100 VAC
7 A @ 90 VAC
Line Fused 30 A peak at cold
start and 50 A
peak at warm start
for <10 ms, 10 A
peak for cycles 10
ms -150 ms, < 7 A
peak for >150 ms
AC to DC - VDX
6940-144S
1100 W 100 - 240 VAC
(nominal)
50 - 60 Hz
(nominal)
12 A AC line and neutral
fused
40 A peak at 240
VAC during cold
Power supply specications (per PSU)
ExtremeSwitching VDX 6940 Technical Specications
9036113-00 7