Cardinal iMDU12 S/D MDU Range

iMDU12B-S
Intelligent MDU: 12 outputs, single input, power monitoring, SNMP
A single input MDU with 12 independent outputs. It can be configured to send SNMP traps and email alarms when faults occur, including loss of input mains power and blown fuses. The unit includes remote power monitoring for optimising operational efficiency and early detection of faults within a rack, and an error log to record trends on equipment failure.

iMDU12B-D
Intelligent MDU: 12 outputs, dual input, power monitoring, SNMP
A dual input MDU with 12 independent outputs. If input 1 fails, the unit automatically connects input 2 to the 12 outputs. It can be configured to send SNMP traps and email alarms when faults occur, including loss of input mains power and blown fuses. The unit includes remote power monitoring for optimising operational efficiency and early detection of faults within a rack, and an error log to record trends on equipment failure. Automatic power shedding. If a back up power supply is selected, it may be necessary to switch off non-critical equipment by shedding a number of MDU outputs. Power shedding is configured for automatic operation in the MDU configuration page. High inrush current protection Both single and dual input versions are designed for use with equipment that has modern switch mode PSU’s that can exhibit high inrush currents. Individually switched outputs are rated to 60A inrush and the dual input changeover version has an inrush limiting circuit that restrictsthe current at switch on to 40A. 

Sequential power on/off. All outlets are individually switched enabling the user to control and set sequential switching, to prevent an excessive current surge on start-up and an orderly power-down when shedding outputs.

 Fail-safe. As standard the MDU outputs will switch off in the event of failure of the internal control system. Ordering the fail-safe option enables the outputs to remain on if the internal control system fails and the unit will revert to a conventional MDU.

Power management. The Cardinal range of MDUs include remote power monitoring for optimising operational efficiency and early detection of faults within a rack.

• Power 
• Input voltage 
• Energy (KWh) 
• Input current
• Power factor

Network interface. The dB Cardinal intelligent mains distribution unit provides fully featured web and SNMP interfaces giving easy access to sophisticated remote control and configuration facilities. On loss of mains input large capacitors sustain the microcontroller for approximately ten seconds. This is long enough to record the fault and send SNMP traps to alert the management system.

Email alerts. The Cardinal range can be configured to provide email alerts for various conditions including; loss of input mains power, blown fuses and output status changing (i.e. relay on or off).

Logging. As well as error logging the MDU records five days of the peak and minimum values of certain parameters.

IP reset. An optional controller reset button can be added which enables the iMDU internal control system to be reset without interrupting any of the MDU outputs

Temperature and humidity sensing. An optional remote temperature and humidity sensor can be added for monitoring the temperature and humidity at any position within the equipment bay.

General purpose inputs. Each MDU includes 16 general purpose inputs for connection of alarms from other equipment. These alarms can be reportedin the same way as those for the MDU.