Instruction Manual

Table 10 Operational I/O m odul e s tatus indicators
Top Power Bottom
Descriptions
Off
On
Off
• I/O M
odule is operational
On
Flashing,
then On
On
• Top port—Fibre Channel drive enclosure signal detected.
• Power—Flashes for about 90 seconds after initial power application,
then remains constant.
• Bottom port—Fibre Channel drive enclosure signal detected.
On On On
• Top port—Fibre Channel drive enclosure signal detected.
• Power—Present.
• Bottom port—Fibre Channel drive enclosure signal detected.
Flashing Flashing Flashing
• When the locate function is active, all three indicators flash simultaneously.
The Locate function overrides all other indicator functions. Therefore, an
error could be detected while the Locate function is active and not be
indicateduntiltheLocateactionterminates.
Table 11 Non -operational I/O module status indicators
Top Power Bottom
Descriptions
On On
Off
• Top port—Fibre Channel drive enclosure signal detected.
• Power—Present.
• Bottom port—No Fibre Channel drive enclosure signal detected. Check
transceiver and fiber cable connections.
NOTE:
This status applies to configurations with and without FC loop switches.
Off
On On
• Top p or t—No Fibre Channel drive enclosure signal detected. Check
transceiver and fiber cable connections.
• Power—Present.
• Bottom port—Fibre Channel drive enclosure signal detected .
Flashing
On On
• Top port—EMU detected possible transceiver problem. Check transceiver
and fiber cable connections.
• Power—Present.
• Bottom port—Fibre Channel drive enclosure signal detected .
On On
Flashing
• Top port—Fibre Channel drive enclosure signal detected.
• Power—Present.
• Bottom port—EMU detected possible transceiver problem. Ch eck
transceiver and fiber cable connections.
NOTE:
The EMU will not flash the lower indicator on its own. It will flash only
in response to a locate command. You can flash each of the lights
independently during a locate action.
Off Off Off
• No I/O module power.
• I/O module is nonoperational.
• Check power supplies. If power supplies are operational, replace I/O
module.
I/O module power
The I/O module +5 VDC power sensing device protects the modules against overcurrent cond itions. If the
+5 VDC current exceeds 2.5 A rms (nom inal), the sensor opens, removing the +5 VDC input from the
I/O module, thereby disabling the mo d ule until:
Enterprise Virtual Array 3000/5000 user guide (VCS 3.110)
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