CISCO - Power Supply MDS 9216 ONLY
Model: DS-CAC-845W
Auto multi-voltage input (100 ~ 240V AC 50/60Hz)
Outputs: +50V @ 16.67A & +3.35V @ 10A
Made in India
Rear 40 way connector (female)
Intended for use with the Cisco MDS 9216 fibre channel switch ONLY
Possibly this PSU could be repurposed for other uses (not many high current 50V supplies are readily available) although some technical investigation would be required, see my notes below regarding testing.
NOTE: The input power cable MUST have a type C15 power plug, your normal IEC plug will not fit because there is a pin at the socket wihich prevents the use of 'normal' C14 plugs (C15 has an extra hole in the plug)
COSMETIC CONDITION:
Clean
Case is completely undamaged
Both thumbscrew nuts are in very good condition
Rear connector is clean
TESTING:
Removed in-situ from a fully functioning MDS 9216, now considered obsolete to the client's needs.
Photographs show the input and fan leds indicating Green, the last supervisory led is off (as it should be)
*** SPECIAL NOTE ***
If the power supply is powered up when NOT inserted into the MDS 9216, you will get a Red led supervisory light indicating Output Fail. This is because the PSU must see a signal (what signal I am not sure and have not investigated) before this led is extinguished. Even when the fan module in the MDS 9216 is removed, this Red led remains lit. It doesn't appear to be simply a case of once fitted into corresponding male connector inside the MDS 9216, all is well - this is not the case as there is a short delay (around 0.5 seconds, during which time the Red led is ON) and then the MDS 9216 'tells' the power supply 'yep, everything is good to go' and the Red led goes OFF.
You will only see the 'all clear' (only the top two Green leds lit and NOT the lowest Red led) when inserted into the MDS 9216 with the fan module also inserted - then it is 'happy' and all is good with the world. Basically it seems to be designed as an electronic interlock system.
This means that if the PSU was to be repurposed e.g DC supply for a high current variable power supply (example only) then you will need to discover what the PSU is looking for before that Red led goes out. I wouldn't be holding my breath for hardware technical information, I have found it can be very difficult to source hardware technical information from Cisco - analysis of the signals on those 40 pins at the rear is probably required!
