Cardinal iMDU12-S User manual

Intelligent MDU Range
This handbook applies to models:
iMDU12
-S
iMDU12
-D
Handbook
Version 1.0

Intelligent MDU Cardinal
2014 dB Broadcast Ltd ii
dB Broadcast Ltd has made every effort to ensure the accuracy of information contained within this
document which is nevertheless supplied for information purposes only and does not constitute any
form of warranty or guarantee.

Intelligent MDU Cardinal
2014 dB Broadcast Ltd iii
All trademarks acknowledged.
The information in this document is subject to change without notice.
dB Broadcast Ltd
Registered Office:
Kestrel House
Sedgeway Business Park
Witchford
Ely
Cambridgeshire
CB6 2HY
UK
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.dbbroadcast.co.uk
Registered in England No. 2709677

Intelligent MDU Cardinal
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Document History
Date of first publication 09/06/2014
Current issue and date 09/06/2014

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Contents
INTRODUCTION 1
MAIN FEATURES 1
Variants 3
Software and hardware control 3
INSTALLATION 4
RACK MOUNTING AND VENTILATION 4
Rear I/O 5
HARDWARE SETUP 6
GETTING STARTED 7
FRONT PANEL CONTROLS AND LEDS7
SERIAL CONTROL 7
THE WEB INTERFACE 7
CONNECTING TO A UNIT FOR THE FIRST TIME 8
Using a PC 8
Using the serial port 9
USING THE WEB INTERFACE 10
INTRODUCTION 10
STATUS INFORMATION 10
System Status 10
IP Configuration and MDU Details 13
IP CONFIGURATION 14
MDU CONFIGURATION 17
EVENT LOG 19
POWER LOG 20
APPENDIX 21
SERIAL COMMANDS 21
TROUBLE SHOOTING 22
FREQUENTLY ASKED QUESTIONS 22
ORDERING INFORMATION 24

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MODEL VARIANTS 24
OPTIONS 24
SPECIFICATION 25

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2014 dB Broadcast Ltd 1
Introduction
The Cardinal range of intelligent mains distribution units provide 12 separate outputs, an
SNMP interface, email messaging, a choice of single or dual inputs, with optional external
temperature and humidity sensing in a 1RU rack.
Figure 1: Cardinal iMDU block diagram (dual input version)
The dual input version enables main and back-up power sources to be connected to a single
Cardinal unit.
Main features
•Single and dual input versions with Neutrik Powercon inlets
•12 fused IEC outputs with LED fuse failure indication
•Automatic power shedding
•Sequential power on/off (some models)
•Network interface with web configuration via web browser
•Serial interface for initial IP address configuration as well as optional
Environmental Monitoring (external temperature/humidity sensor)
•SNMP interface
•Email alerts
•Logging
•Eight GPIs (general purpose inputs)
•Over current trip
•Turn on sequentially or with all outputs on (fail safe option)
•Cable tie bar included at rear

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Dual input version
The dual input version enables main and back up power sources to be connected to a single
Cardinal unit. Switching to the back up input supply is automatic on power fail of the main
source. The changeover system allows non phase inputs to be switched up to 650V.
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 iMDU outputs. Power shedding is configured for
automatic operation in the iMDU configuration page.
Sequential power on/off
All outlets are individually switched enabling sequential switching to prevent an excessive
current surge on start-up and an orderly power-down when shedding outputs. This does not
apply to fail safe models, where outputs are ON at power up.
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.
Email/SNMP alerts
The Cardinal range can be configured to provide email and SNMP alerts for various
conditions including; loss of input mains power, blown fuses, output status changing (i.e.
relay on or off).
Power-off fault alerts
On loss of mains input capacitors sustain the microcontroller sufficiently (around 10 seconds)
to record the fault and send SNMP traps and/or emails to alert the management system of
the loss.
Logging
As well as error logging the iMDU records five days of the following:
•Peak input voltage per input
•Minimum input voltage per input
Fail safe
Fail safe ensures that all outputs are ON at power up. If the control system were to fail, all
outputs remain ON and can no longer be controlled.
Temperature and Humidity sensing
An optional remote temperature and humidity sensor can be added for environmental
monitoring at any position within the equipment bay.

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General purpose inputs
Each iMDU includes 8 general purpose inputs for connection of alarms from other
equipment. These alarms can be reported in the same way as those for the iMDU.
Thermal breaker
The front panel on-off switch acts as a thermal breaker set to operate when a load of
approximately 12A occurs.
Variants
iMDU12-S
A single input iMDU 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 an error log to record trends on equipment failure.
iMDU12-D
A dual input iMDU 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. It includes an
error log.
IMDU12-O-H
Humidity & temperature sensor, requires cable iMDU12-O-C-3
iMDU12-O-C-3
Cable for sensor, serial screened, length 3m
Software and hardware control
The front panel provides monitoring of each output’s availability as well as both access and
monitoring of each output fuse. For full configuration and monitoring, each Cardinal unit has
its own web based configuration tool, which is accessed from its IP address.
The default IP address configured at the factory is 192.168.0.161. The first step in
configuring multiple units is to ensure that each Cardinal unit has its own unique IP address.
Refer to the Configuration and Operation chapter for further detail.

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Installation
Rack mounting and ventilation
Warning, installation instructions are for trained personnel. To avoid electric shock do
not attempt service or internal configuration unless qualified to do so. Always
disconnect all applicable mains supplies before removing any covers.
Install Cardinal iMDUs in a standard 19 inch rack as follows:
•install each unit into its own support tray to help bear the combined weight of the unit
and any cables attached to the rear tie-bar
•ensure an adequate supply of forced cool air
•before powering the unit, ensure that the protective earth terminal of the unit is
connected to the protective conductor of the mains cord
•if necessary, connect one of the earth screw terminals points to a technical earth
•connect the supplied power cord(s) to the Neutrik Powercon connectors at the rear of
the frame and to a suitable mains supply
•connect the Network interface to a PC via a LAN and optionally connect the 6 way
RJ11 serial interface to the serial port of a PC (may be required for initial configuration)
•if required connect GPI external control and monitoring using the 15 way GPIO port
•connect up to 12 mains loads to the fused IEC connectors at the rear of the frame
•ensure that no single load exceeds the current rating for a single output (normally 6A)
or for the installed fuse in that output (default 5A slow-blow) if lower
•Ensure that the inrush current for an output does not exceed 60A or permanent
damage may occur.
•ensure that the total current from all outputs does not exceed the total current
specification for the unit (12A). It is not recommended that the unit be used
continuously above 10A.
•Fit the iMDU12-O-H Temperature and Humidity sensor with Cardinal powered off.
•power the unit when ready and monitor the unit using the LEDs on the front panel and
via the unit’s web interface
Refer to factory before installing multiple units without gaps.
Refer to the Operation chapter for system and configuration settings.