Installation manual

Authorized Service Personnel ONLY:
Power Supplies
Power the COS unit up by plugging it into a power source. There is no power switch.
On the Power Supply Cards, check that the green “Power Good” LED is lit and the Red
“Halt” LED is not lit. If this is not the case, replace the power supply.
Hot Swap LEDs
On the Controller Front Card and any Switch Front Cards installed, there are three hot-
swap control LEDs. These consist of a green “OK” LED, a yellow “Fault” LED and
a blue “OOS” (out-of-service) LED. Only the green “OK” LED should be lit. These
lights can be interpreted as follows
OK
Fault
OOS
Meaning
On Off Off Operating normally.
On On Off Temperature, Voltage or Current condition is out of tolerance, still operating.
Off On Off A failure has rendered the card inoperable.
Off Off On Front or rear card is partially ejected or software has disabled the card.
Off Off Off Boot code running, power not been applied to chassis or the card is fully
ejected.
No other combinations should be possible and indicate the card is not operational.
The blue “OOS” LED is duplicated on the Rear card for ease of use during card
exchanges.
Faults
The Controller Card’s “Fault” LED will come on and stay on if a problem is detected, no
matter how briefly. The operator must intentionally clear the fault condition. A fault can
occur if any of various measured values fall outside normal operating conditions. The
unit monitors current, temperature and all voltages in the unit. It also monitors the health
of the internal microprocessors and the functionality of the software.
If the fault is not critical, the COS will continue to operate and display the green “OK”
LED. If the failure is critical (the card can not operate in this state), the green “OK”
LED will go out and the device will not communicate via any interface. Critical failures
would include serious over current or significant failure of the main voltage rails.
To clear a critical or non-critical fault, the operator can temporarily flip the ejector latches
on the card. Or, the state can be cleared via Ethernet or serial control.
Out-of service (OOS) LED
The out-of service LED indicates the card is partially ejected or the operator has
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