Crystal Vision
Introduction
1 Introduction
The Indigo 2AE and 2SE frames are 2U Ethernet enabled frames for up to 12 modules. The
2AE has an integrated front control panel with display; the 2SE has no integrated front control
panel but has additional cooling and is designated the ‘Indigo 2SE CoolFlow’.
There are configurable rear connectors and space for up to two plug-in power supplies. The
dual supply facility allows for redundancy and continued operation in the event of a power
supply failure.
All models have a hinged front panel that allows easy access to removable fan assemblies,
power supplies and modules.
The Indigo 2AE frame with front control panel open
The Indigo 2SE Coolflow front panel.
On the 2SE there are three easily accessible fans. One is fitted on a detachable plate in front of
the PSUs and the other two are attached to the rear of the front panel. The frame can be
operated with the front panel open, with an optical sensor on the front panel switching the PSU
fan on and the front panel fans off. The PSU fan only runs when the frame is open. If one of the
front panel fans should fail or operate too slowly, the other front panel fan is automatically
switched to full power and an alarm asserted. A frame temperature sensor mounted above the
top central module position (slot 5) also controls fan speed. There are two cooling modes:
automatic and maximum. With automatic cooling both front panel fans run continuously,
increasing in speed as the temperature inside the frame goes up. In maximum cooling mode
both front panel fans are set to maximum speed. This mode is ideal for equipment bays where
noise is not a concern.
On the 2AE there are two easily accessible fans. One is fitted on a detachable plate in front of
the PSUs and the other is attached to the rear of the front panel. Only one of the fans is
essential in normal operation. If one of the fans should fail, the closed frame can still operate
indefinitely with an ambient temperature of 40 degrees. A frame temperature sensor mounted
Indigo 2AE and 2SE User Manual R1.17
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27 February 2020