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PRODUCT DESCRIPTION

1.  Product Description

The MNAC and MNDC are modular power supplies that supply the re24 VDC to the MAXNET Active Chassis 

backplane. This allows any MAXNET active module (AMP’s, RF Switch) to be installed in any remaining active chassis slot 

to receive power. Both MNAC and MNDC have 24 VDC redundant powering capabilities, although only the MNDC provides 

true load sharing. Installing two power supply modules into the chassis will maintain power to the backplane in the event that 

one of them fails. Both the MNAC and the MNDC include a 24 VDC rear terminal block connection for the remote chassis 

powering options. They are connected to the Active MAXNET Chassis through a hot-swapping backplane. The MNAC and 

MNDC modules feature front panel LED power indication and +24 VDC backplane voltage monitor connections. 
In addition to the standard powering modules, an optional current monitoring function is available in both the MNAC and 

MNDC to provide remote indication (via the rear terminal block) of current fluctuations caused by an active module failure.
The MNRPS is a module that supplies power to an Active MAXNET Chassis backplane from a remote 24 VDC source. It 

features front panel LED power indication and +24 VDC backplane voltage monitor connections.

Please refer to the web page for up-to-date specifications – atxnetworks.com

1.1.  Technical Specifications

          MAXNET

®

 – MNAC/MNDC Modular Power Supply – Installation & Operation Manual 

1-1

 

CHAPTER 1:  PRODUCT DESCRIPTION

Table #1: Ordering Information

Table #2: Technical Specifications

Part Number

Description

MNRPS

24V, 3.6A Remote Powering Unit

MNRPSCM

24V, 3.6A Remote Powering Unit with Current Monitoring

MNAC-110

110 VAC to 24V, 3.6A Diode or'd Redundant Power Supply

MNAC-110CM

110 VAC to 24V, 3.6A Power Supply with Current Monitor

MNAC-220

220 VAC to 24V, 3.6A Diode or'd Available (Consult ATX)

MNAC-220CM

220 VAC to 24V DC, 3.6A Power Supply with Current Monitor

MNDC

-48 VDC to 24V, 3.6A True Load Sharing Redundant Power Supply

MNDCCM

-48 VDC to 24V, 3.6A Power Supply with Current Monitor

Dimensions

8.66”H x 1.82”W x 11.75”D (21.99H x 4.62W x 29.84D cm)

Summary of Contents for MNAC-110

Page 1: ...MNAC MNDC Modular Power Supply Installation Operation Manual D3 1 CCAP Compliant Pat s U S 6 842 348 7 043 236 Cdn 2 404 840 2 404 844 Pat s U S 6 842 348 7 043 236 Cdn 2 404 840 2 404 844...

Page 2: ...er countries Products or features contained herein may be covered by one or more U S or foreign patents Other non ATX product and company names in this manual are the property of their respective comp...

Page 3: ...dule Installation into the Active MAXNET Chassis 2 1 2 3 DC Redundant Powering of Active MAXNET Chassis 2 2 2 4 Module Power Requirements 2 2 2 5 LED Indicator 2 2 2 6 Voltage Monitor 2 2 3 MAINTENANC...

Page 4: ...gram 1 2 5 MNAC 220CM Power Supply with Current Monitoring Functional Diagram 1 2 6 MNRPS Remote Power Supply Functional Diagram 1 2 7 MNRPS CM Remote Power Supply with Current Monitoring Functional D...

Page 5: ...to provide remote indication via the rear terminal block of current fluctuations caused by an active module failure The MNRPS is a module that supplies power to an Active MAXNET Chassis backplane fro...

Page 6: ...tional Diagram MNAC 220CM INPUT VOLTAGE 220 20 VOLTS AC OUTPUT VOLTAGE 24 1 0 VOLTS DC FREQ 50 60Hz CURRENT 1 0 AMPS AC CURRENT 3 6 AMPS DC NO RLY V ALARM NO RLY I ALARM 220V IN 24V OUT AC POWER SUPPL...

Page 7: ...on should be given to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring Appropriate considera...

Page 8: ...dicator The MNAC and MNDC power supply module have an LED indicator The LED verifies by lighting solid GREEN that the power supply is supplying 24 VDC to the Active MAXNET Chassis backplane 2 6 Voltag...

Page 9: ...orrect power Refer to the MNAC MNDC Not Powering Chassis troubleshooting section If power availability is not an issue and other modules in the chassis are okay the module itself is suspect Continue R...

Page 10: ...CHAPTER 3 MAINTENANCE TROUBLESHOOTING 3 2 MAXNET MNAC MNDC Modular Power Supply Installation Operation Manual This page left intentionally blank...

Page 11: ...hat objects do not fall and liquids are not spilled into the enclosure through openings Power Sources The device should be connected to a power supply only of the type described in the operating instr...

Page 12: ...wer AC or DC should be disconnected from the module before removing for replacement or service This is accomplished by removing the AC IEC plug for the MNAC unit and wires from the terminal block of t...

Page 13: ...This page left intentionally blank MAXNET MNAC MNDC Modular Power Supply Installation Operation Manual 4 3 CHAPTER 4 SERVICE SUPPORT...

Page 14: ...Canada Rev 04 17 ANW0874 1 501 Clements Road West Ajax ON L1S 7H4 Canada Tel 1 905 428 6068 Toll Free 1 800 565 7488 Fax 1 905 427 1964 Toll Free Fax 1 866 427 1964 www atxnetworks com support atxnet...

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