HRK3-HB-7
V
IA
L
ITE
HD
3U
CHASSIS
H
ANDBOOK
36
6.12
Shock and vibration
ViaLiteHD modules have been designed and tested to operate under significant mechanical stress; the tests run far exceed normal ground
fixed operational use. This has been done to assure the robustness and reliability of the designs. Below are detailed the tests undertaken.
The system under test was a set of 3U chassis mounted modules, powered by chassis mounted AC PSUs. The system is detailed below:
HRK3S
3U chassis
HPS-3
AC PSU
HPS-3
AC PSU
HRC-1-09-8R-20
SNMP controller
HRT-N1-6R-35-S1310
1GHz TX
HRR-N1-6R-05
1GHz RX
HRX-N1-8D-05-C1530
1GHz TRX blindmate
F6R1/0.5
Optical test cable
F8R1/0.5
Optical test cable
Laptop (running SNMP web interface), not subject to vibration or shock
Vibration and shock test configuration, rear view
Vibration applied to the system:
Vibration (Sinusoidal)
Planes
3 planes, X/Y/Z
Severity
5G, 25
– 2000 Hz, 1 octaves per minute.
Duration
1/2 hour in each axis
Standard
IEC68-2-6: 1982
Shock applied to the system:
Shock (half sine);
Axis:
6 axis, X+/X-/Y+/Y-/Z+/Z-
Severity
15g/ 11ms Shock (half sine)
Duration
3 shocks each direction of each axes
Standard
IEC68-2-27:1987
A continuous wave RF test signal was applied to the TX FOL and monitored on the RX FOL via a spectrum analyser. The spectrum analyser
used both maximum and minimum hold to capture performance extremes.
The test pass requirement was as follows:
Continuous RF operation to specification.
No SNMP error events to be logged.
No front panel LED errors to be shown.
No visible mechanical damage or degradation.
Orientation of shock and vibration
P
S
U
B
B
A
A
A
A
A
A
A
A
P
S
U
S
N
M
P
SLOTS
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Rfout Rfin
S
in
g
le
F
O
L
R
X
F
O
L
T
R
X
S
in
g
le
F
O
L
T
X
A
A
A
A
RF Port
Fibre optic port
RF cable
Fibre optic cable
+
Z axis
-
+
Y axis
-
+
X axis -
