Transition Networks IONPS-D-R1 User manual

IONPS-D-R1
DC Power Supply
User Guide
33707 Rev. A

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Trademarks
All trademarks and registered trademarks are the property of their respective owners.
Copyright Notice/Restrictions
Copyright © 2016, 2017 Transition Networks. All rights reserved. No part of this work may be reproduced or
used in any form or by any means (graphic, electronic or mechanical) without written permission from
Transition Networks. Printed in the U.S.A.
ION System IONPS-D-R1 DC Power Supply User Guide, 33707 Rev. A
Contact Information
Transition Networks
10900 Red Circle Drive
Minnetonka, MN 55343 USA
tel: [phone] | toll free: 1.800.526.9267 | fax: [phone]
[email protected] |[email protected] |[e-mail]
Revision History
Rev
Date
Description
A
6/8/17
Release of the IONPS-D-R1 at v1.2.5. IONMM v1.3.1815 is required for the IONPS-D-R1.
Document Jumper J5 and update Dying Gasp description.

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Cautions and Warnings
Definitions
Cautions indicate that there is the possibility of poor equipment performance or potential damage to the
equipment. Warnings indicate that there is the possibility of injury to person.
Cautions and Warnings appear here and may appear throughout this manual where appropriate. Failure to read
and understand the information identified by this symbol could result in poor equipment performance, damage
to the equipment, or injury to persons.
Cautions
While installing or servicing the power module, wear a grounding device and observe all electrostatic discharge
precautions. Failure to observe this caution could result in damage to, or failure of the power module.
Warnings
Warning: Do not connect the power module to an external power source before installing it into the chassis.
Failure to observe this warning could result in an electrical shock, even death.
WARNING: The power module has a provision for grounding. Equipment grounding is vital to ensure safe
operation. The installer must ensure that the power module is properly grounded during and after installation.
Failure to observe this warning could result in an electric shock, even death.
WARNING: A readily accessible, suitable National Electrical Code (NEC) or local electrical code approved
disconnect device and branch-circuit protector must be part of the building's installed wiring to accommodate
permanently connected equipment. Failure to observe this warning could result in an electric shock, even death.
WARNING: Turn the external power source OFF and ensure that the power module is disconnected from the
external power source before performing any maintenance. Failure to observe this warning could result in an
electrical shock, even death.
WARNING: Ensure that the disconnect device for the external power source is OPEN (turned OFF) before
disconnecting or connecting the power leads to the power module. Failure to observe this warning could result
in an electric shock, even death.
See Electrical Safety Warnings on page 48 for Electrical Safety Warnings translated into multiple languages.

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Contents
1. Introduction and Description ................................................................................................................................6
IONPS-D-R1 Description .........................................................................................................................................6
General Specifications ............................................................................................................................................6
Primary/Secondary Mode ..................................................................................................................................7
Failover and Load Sharing ..................................................................................................................................8
Fan Speed ...........................................................................................................................................................8
ION Power Supply Interoperability.....................................................................................................................9
Related Manuals and Online Help....................................................................................................................... 10
Package Contents ................................................................................................................................................ 10
Unpacking............................................................................................................................................................ 10
2. Installation .......................................................................................................................................................... 11
Installation Overview........................................................................................................................................... 11
Site Requirements ........................................................................................................................................... 11
Description .......................................................................................................................................................... 13
Power Module Component Identification....................................................................................................... 13
Note ................................................................................................................................................................. 13
Power Source Circuit Requirements.................................................................................................................... 14
Equipment Ground .............................................................................................................................................. 14
Disconnect Requirements ................................................................................................................................... 14
Connecting External Power ................................................................................................................................. 14
Grounding Screw ............................................................................................................................................. 15
Jumper J5 –USB Connector................................................................................................................................. 15
Jumper J9 –Dying Gasp Connector ..................................................................................................................... 15
External Overcurrent Protection Requirements ................................................................................................. 16
Redundant (Failover) Chassis Power Module...................................................................................................... 18
Power Module Redundancy ................................................................................................................................ 19
3. Maintenance ....................................................................................................................................................... 20
Replacing the Power Supply Module .................................................................................................................. 20
Replacing the Fuse............................................................................................................................................... 21
4. IONPS-D-R1 Software Configuration.................................................................................................................. 22
IONPS-D-R1 CLI Commands................................................................................................................................. 22
Set Power Supply or Fan STID.......................................................................................................................... 24
IONPS-D-R1 CLI Messages ............................................................................................................................... 29
Power Supply Config –Web Method .................................................................................................................. 30
Temperature Sensor Configuration................................................................................................................. 32
Voltage Sensor Configuration.......................................................................................................................... 35
Power Sensor Configuration............................................................................................................................ 37
Fan Configuration ............................................................................................................................................ 39
Upgrading the IONPS-D-R1.................................................................................................................................. 41
IONDCR-R1 Dry Contact Relay Module ............................................................................................................... 41

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5. Troubleshooting, Support, and Compliance Information ................................................................................. 42
Messages ............................................................................................................................................................. 42
SNMP Service and Function................................................................................................................................. 44
Troubleshooting .................................................................................................................................................. 45
Recording Information ........................................................................................................................................ 46
Limited Lifetime Warranty .................................................................................................................................. 47
Contact Us ........................................................................................................................................................... 47
Technical Support............................................................................................................................................ 47
Compliance Information...................................................................................................................................... 47
FCC Regulations ............................................................................................................................................... 47
Canadian Regulations ...................................................................................................................................... 47
Declaration of Conformity................................................................................................................................... 48
Electrical Safety Warnings ................................................................................................................................... 48
Electrical Safety ............................................................................................................................................... 48
Elektrische Sicherheit ...................................................................................................................................... 48
Elektrisk sikkerhed........................................................................................................................................... 48
Elektrische veiligheid....................................................................................................................................... 48
Sécurité électrique........................................................................................................................................... 48
Sähköturvallisuus............................................................................................................................................. 48
Sicurezza elettrica............................................................................................................................................ 49
Elektrisk sikkerhet............................................................................................................................................ 49
Segurança eléctrica.......................................................................................................................................... 49
Seguridad eléctrica .......................................................................................................................................... 49
Elsäkerhet ........................................................................................................................................................ 49
Figures
Figure 1: IONPS-D-R1 (DC) Power Supply...................................................................................................................6
Figure 3: Component Identification ........................................................................................................................ 13
Figure 2: Grounding Screw ...................................................................................................................................... 15
Figure 4: Removing the Euro Block from Power Module ........................................................................................ 16
Figure 5: Installing Power Wires.............................................................................................................................. 17
Figure 6: Remove Slot Cover ................................................................................................................................... 18
Figure 7: Power Module Installation ....................................................................................................................... 19
Figure 8: Replacing the Power Module ................................................................................................................... 20
Figure 9: Fuse Holder with Fuse .............................................................................................................................. 21

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1. Introduction and Description
IONPS-D-R1 Description
Transition Networks’ IONPS-D-R1 power module can deliver power or provide optional, redundant DC power for
the ION219 chassis. The ION platform is an intelligent, high-density, multi-protocol system supporting a variety
of network interface devices. Designed for both carrier class and enterprise network applications where multiple
points of fiber integration and secure network management of the fiber interface devices is essential.
The ION219 chassis can support up to two power supply modules which mount in the rear of the chassis.
A single power supply can be used to power all the devices installed in the chassis; however the system can be
made redundant with the use of a second power supply. In this configuration, the power supplies operate in an
instant-fail-over mode. The IONPS-D-R1 is shown below:
Figure 1: IONPS-D-R1 (DC) Power Supply
General Specifications
The IONPS-D-R1 is designed to meet these standards:
IEEE Standards
IEEE 802.3™-2000
Emission Compliance
EN55022 Class A
Immunity Compliance
EN55024
Safety Compliance
UL Listed (UL60950), FCC Class A, CISPR Class A, CE Mark
Power input
48VDC (40 –60VDC) @ 5A
(typical for a fully-loaded chassis); 10 Amps max
Under-voltage lockout
40VDC max, 38VDC min
Inrush current
5A max
Power output
12VDC @ 12 Amp max
DC Power Input
40-60 VDC @ 10A max.
Fuse
12A / 450VAC. Caution: For continued protection against risk of fire, replace
with same Type & Rating of fuse. Disconnect power source before servicing.

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MTBF
IONPS-D-R1:
40,00 MIL-HDBK-217F hours
110,000 Bellcore hours
IONDCR-R1:
Greater than 250,000 MIL-HDBK-217F Hours
Greater than 687,500 Bellcore Hours
Dimensions
Width: 8.3” [211 mm] x Depth: 9.0” [229 mm] x Height: 3.4” [86 mm]
Weight
4 lb. (6.35kg) approximately
Operating Temperature
0°C to 50°C (32°F to 122°F )
Storage Temperature
-25°C to 70°C (-13°F 185°F)
Altitude
0-10,000 feet (with de-rating)
Operating Humidity
5% to 95% (non-condensing)
Warranty
Limited Lifetime Warranty
These product specifications are subject to change without further notice.
Primary/Secondary Mode
Only one power supply is needed to power the ION219 chassis; however, there is a second slot to house a
redundant power supply module. If a redundant power supply is used, please note that:
1. Both power supplies cannot be put in Secondary mode.
2. If there is only one power supply it will set itself to Primary mode.
3. The IONPS-D-R1 default setting is Primary mode.
The Primary/Secondary mode is set via the ION software (Web GUI or CLI command). When two IONPS-D-R1
modules are installed in an ION chassis, you can select either Primary or Secondary for either or both of the
power supplies via ION software.
The IONPS-D-R1 default setting is Primary mode. A warning message and a control system exist that prevents
both modules from being set to Secondary mode.
Primary means the IONPS-D-R1 always attempts to provide power to the chassis, and Secondary means the
IONPS-D-R1 always attempts to standby, only providing power to the chassis when no other source is providing
sufficient power.
The IONPS-D-R1 is shipped in Primary mode by default, meaning it will always attempt to power the chassis;
if two IONPS-D-R1s are installed in a chassis, they will both attempt to power the chassis, resulting in load-
sharing, with the constant ability for either one to take on the full load of the chassis, should a failure occur.
If you prefer to have primary/secondary operation instead of load-sharing (still maintaining constant fail-over
ability), just change the role of one IONPS-D-R1 from Primary to Secondary.
Power Modules Interoperability Guideline: If you will be using the older IONPS-A or IONPS-D with the newer
IONPS-A-R1 or IONPS-D-R1 in the same ION219 chassis, then you should place the newer IONPS-A-R1 or IONPS-
D-R1 power supply in the right-hand slot (when facing the back of the ION219 chassis). For more details on the
use of dual power supplies in the ION219 chassis, see the following section.

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Failover and Load Sharing
Load Sharing is achieved when both Power Supplies are set to Primary.
Failover is achieved when one Power Supply is set to Primary and the other is set to Secondary.
There are two modes for the IONPS-D-R1:
1. If both are in Primary mode, both power supplies are in an un-balanced “Auctioneered” load share mode.
2. If one is Primary and the other is Secondary, then they will work in an instant fail-over mode.
The new IONPS-D-R1 can be used in conjunction with the old IONPS-A. The old IONPS-A will always set itself to
Primary when installed in Power Supply slot #1 (chassis slot #22). Likewise, the IONPS-A will always set itself to
Secondary when installed in Power Supply slot # 2 (Chassis slot # 23).
The table below shows how the two power supply modules can be configured and how they interact.
#
Control
PS #1
PS #2
Function
1
User control
IONPS-A-R1
Primary/Secondary
IONPS-A-R1
Primary/Secondary
Instant Fail-over or loadshare based on
software configuration.
2
Automatic
IONPS-A
Primary
IONPS-A
Secondary
Instant Fail-over.
3
Automatic
IONPS-A
Primary
IONPS-A-R1
Primary
Un-balanced “Auctioneered” loadshare.
4
Automatic
IONPS-A-R1
Primary
IONPS-A-R1
Primary
Un-balanced “Auctioneered” loadshare,
but the IONPS-A will carry most of the
load.
The IONPS-D-R1 default setting is Primary mode. If you try to set both P/S #1 and P/S #2 are set to Secondary
mode, a warning message displays (a control system exist that prevents both modules from being set to
Secondary mode).
For redundant operation where two identical power supplies are connected in parallel, diode 'auctioneering'
modules are used to eliminate the possibility of a back feed from one power supply to the other, and to allow
power supply failure alarms to be operated.
Note that the IONPS-D-R1 can also be used with the DC power supply, IONPS-D.
Fan Speed
The IONPS-D-R1 fan control mode is pre-configured for “automatic” mode; the fan speed is controlled by PWM
according to a temperature sensor. The IONPS-D-R1 uses an intelligent temperature monitor and fan controller
in Auto Temperature-Fan mode. Auto Temperature-Fan mode is an intelligent, closed-loop control that
optimizes fan speed according to pre-defined parameters. This mode allows the IONPS-D-R1 to run as a stand-
alone device without intervention.

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ION Power Supply Interoperability
The table below shows ION power supply module interoperability. In the table below, where
IONPS-x-R1 is referenced, the xindicates Aor D(IONPS-A-R1 or IONPS-D-R1).
#
PS #1 (Slot #22)
PS #2 (Slot #23)
Notes
1
IONPS-x-R1 (Primary)
(empty)
VALID
2
IONPS-x-R1 (Secondary)
(empty)
VALID
3
(empty)
IONPS-x-R1 (Primary)
VALID
4
(empty)
IONPS-x-R1 (Secondary)
VALID
5
IONPS-x-R1 (Primary)
IONPS-x-R1 (Primary)
VALID
6
IONPS-x-R1 (Primary)
IONPS-x-R1 (Secondary)
VALID
7
IONPS-x-R1 (Secondary)
IONPS-x-R1 (Secondary)
INVALID
8
IONPS-A
IONPS-x-R1 (Primary)
VALID
9
IONPS-A
IONPS-x-R1 (Secondary)
VALID
10
IONPS-x-R1 (Primary)
IONPS-A
VALID
11
IONPS-x-R1 (Secondary)
IONPS-A
INVALID
12
IONPS-D
IONPS-x-R1 (Primary)
VALID
13
IONPS-D
IONPS-x-R1 (Secondary)
VALID
14
IONPS-x-R1 (Primary)
IONPS-D
VALID
15
IONPS-x-R1 (Secondary)
IONPS-D
INVALID
IONPS-x-R1 Primary/Secondary functionality is user configurable, and works in all scenarios (except where
both supplies are set to Secondary).
IONPS-A and IONPS-D Primary/Secondary functionality is determined by which slot the Power Supply is
installed in Slot 22 (PS1) = Primary, Slot 23 (PS2) = Secondary.
IONPS-x-R1 can be manually configured to Load Share (default, Primary/Primary).
Minimum Firmware/Software Versions Required:
IONMM FW v 1.3.1815 for IONPS-D-R1
IONPS-D-R1 v 1.2.5
FocalPoint v 3.1.2.0
MIB v 1.3.14

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Related Manuals and Online Help
A printed documentation card is shipped with each device. For Transition Networks Drivers, Firmware, Manual,
etc. go to the Product Support webpage (logon required). For Transition Networks Application Notes,
Brochures, Data Sheets, Specifications, etc. go to the Support Library (no logon required).
Note that this manual provides links to third party web sites for which Transition Networks is not responsible.
Other related manuals are listed below.
1. Product Documentation Postcard, 33504
2. ION219-x 19-Slot Chassis Install Guide, 33412
3. ION Management Module (IONMM) Install Guide, 33420 and User Guide, 33457
4. Focal Point™ 3.x Management Application User Guide, 33293
5. IONPS-A-R1 Power Supply User Guide, 33614
6. IONDCR and IONDCR-R1 Install Procedure, 33422
7. SFP manual (model specific; see Transition Networks SFP page)
8. Release Notes (firmware version specific)
Note: Information in this document is subject to change without notice. All information was deemed accurate
and complete at the time of publication. This manual documents the latest software/firmware version at the
time of publication. While all screen examples may not display the latest version number, all of the descriptions
and procedures reflect the latest software/firmware version, noted in the Record of Revisions.
Package Contents
Contact your sales representative if you have not received the following:
□One IONPS-D-R1, DC Power Supply
□One Terminal Block
□One Documentation Postcard, 33504
Unpacking
1. Carefully unpack all IONPS-D-R1 contents (see above).
2. Verify receipt of all IONPS-D-R1 components.
3. Place the IONPS-D-R1 and related materials near the installed ION219 chassis.
4. Save the IONPS-D-R1 shipping carton and packing materials for future use.

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2. Installation
This chapter describes IONPS-D-R1 cautions/warnings, installation and setup. The ION219 chassis can support up
to two power supply modules which mount in the rear of the chassis.
A single power supply can be used to power all the devices installed in the chassis; however the system can be
made redundant with the use of a second power supply. In this configuration, the power supplies operate in an
instant-fail-over mode.
Installation Overview
This section describes the installation and site requirements for installing the ION219-A chassis.
Caution: Install the ION219-x chassis so that the airflow around it is not restricted. Failure to observe this
caution could result in performance problems or damage to the contents of the chassis.
Caution: Read the installation instructions before connecting the chassis to a power source. Failure to observe
this caution could result in poor performance or damage to the chassis and its SICs.
Caution: Only trained and qualified personnel should install or replace the ION219-A chassis. Failure to observe
this caution could result in poor performance or damage to the chassis.
Safety considerations: The following considerations will help to ensure your safety as well as protection of the
chassis and its contents from damage. This list does not contain all the potentially hazardous conditions that
could exist at the installation site, so exercise caution at all times.
•Always unplug all power cords before installing or removing the chassis.
•Keep the chassis area clear and dust free during and after installation.
•Keep tools and chassis components away from walk areas.
•DO NOT place containers containing liquid on top of the chassis.
Electrical safety: Follow these basic guidelines when working with any electrical equipment:
•Disconnect all power and external cables before installing or removing the chassis.
•Do not work alone when potential hazard conditions exists.
•Never assume that power has been disconnect from the circuit—always check.
•Carefully examine your work area for possible hazards such as wet floors, ungrounded power extension
cables, and missing safety ground.
WARNING
Do not work on the chassis, connect, or disconnect cables during a storm with lightning activity. Failure to
observe this warning could result in an electrical shock or death.
Site Requirements
To assure normal operation and avoid unnecessary maintenance, plan the site configuration and prepare the
site before installation.
ION219 Chassis Power Consumption Note: The IONPS-D-R1 can power a fully populated ION219 chassis when
loaded with chassis cards that consume 5 Watts of power or less. The IONPS-D-R1 is not recommended for use
with the C4120 chassis card as it uses too much power. All other ION chassis cards use 5 Watts of power or less
(except the C4120 chassis card).
Caution: To prevent the chassis from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature 50ºC (122ºF).

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Caution: The power outlet must be located near the equipment and must be easy to access.
WARNING: If the voltage indication on the label is different from the power outlet voltage, DO NOT plug the
chassis into that receptacle. A voltage mismatch can cause equipment damage and may pose a fire hazard.
WARNING: Take care not to overload the circuit that supplies power to the chassis. Failure to observe this
warning could result in a fire.
IMPORTANT
•All installation and service must be performed by qualified personnel only.
•Read, understand, and follow all CAUTION and WARNING notices, instructions marked on the product,
including in this manual.
The IONPS-D-R1 DC Power Supply can replace an existing IONPS-A or IONPS-D, or it can be installed as the
redundant Power Supply in an AC powered ION219-A chassis.
CAUTION: While installing or servicing the Power Supply, wear a grounding device and observe all electrostatic
discharge precautions. Failure to observe this caution could result in damage or failure of the Power Supply.

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Description
The Transition Networks IONPS-D-R1 power module can deliver power or provide optional, redundant DC power
for the ION219 chassis.
Power Module Component Identification
The IONPS-D-R1 back panel provides access to the DC Power Input, Power ON LED, Grounding Screw, and fan
exhaust as shown in Figure 3:
1Fan
2Functional Ground Terminal (Grounding Screw)
3Power ON LED
4Two-position Euro Block (±voltage leads)
5Handle for installing and removing the power module
Figure 3: Component Identification
Note
The IONPS-D-R1 power module must be installed by qualified technical personnel only. Transition Networks
assumes no responsibility for the improper installation, set up or use of these power modules.
The information in this user guide is subject to change. For the most current information, see the online user
guide at https://www.transition.com.
IMPORTANT
All installation and service must be performed by qualified personnel only.
Read and follow all CAUTION and WARNING instructions marked on the product and in this manual.
The IONPS-D-R1 DC power module is intended for installation in restricted access location only.
The IONPS-D-R1, DC power module can replace an existing DC power module or an AC power module in an
ION219 Chassis.

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CAUTION: While installing or servicing the power module, wear a grounding device and observe all electrostatic
discharge precautions. Failure to observe this caution could result in damage to, or failure of the power module.
Power Source Circuit Requirements
The IONPS-D-R1 power module must be connected to a Safety Extra Low Voltage (SELV) circuit. The installer
must first determine the circuit’s characteristics (limited current, and hazardous energy levels, etc.) and then
install the power module reliably, routing and securing the DC input wires safely in accordance with local and
national electrical codes.
Equipment Ground
WARNING: The power module has a provision for grounding. Equipment grounding is vital to ensure safe
operation. The installer must ensure that the power module is properly grounded during and after installation.
Failure to observe this warning could result in an electric shock.
Disconnect Requirements
WARNING: A readily accessible, suitable National Electrical Code (NEC) or local electrical code approved
disconnect device and branch-circuit protector must be part of the building's installed wiring to accommodate
permanently connected equipment. The approved disconnect device and branch-circuit protector must be
suitable for the rated voltage and current specified. Failure to observe this warning could result in an electric
shock, even death.
WARNING: Ensure that the disconnect device for the external power source is OPEN (turned OFF) before
disconnecting or connecting the power leads to the power module. Failure to observe this warning could result
in an electric shock, even death.
CAUTION: While installing or servicing the power module, wear a grounding device and observe all electrostatic
discharge precautions. Failure to observe this caution could result in damage to, or failure of the power module.
Connecting External Power
WARNING: Do not connect the power module to an external power source before installing it into the chassis.
Failure to observe this warning could result in an electrical shock, even death.

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Grounding Screw
The IONPS-D-R1 back panel provides access to the Grounding Screw as shown below.
Figure 2: Grounding Screw
Jumper J5 –USB Connector
The USB connector (J5) is not used. It is not included on all builds.
Jumper J9 –Dying Gasp Connector
The Dying Gasp connector (J9) is reserved for future use.

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External Overcurrent Protection Requirements
WARNING: In compliance with UL 60950-1 2nd Edition Clause 1.7.2.3 the maximum recommended ampere
rating of an external overcurrent protection device or external disconnect device for the IONPS-D-R1 is 15
Amperes. However, this recommended maximum overcurrent protection device or external disconnect device
rating is not to be considered a branch circuit or power distribution protection device specification in conflict
with local and national electrical codes.
Branch circuit and power distribution protection device requirements must take into account installation wiring
requirements, wire size, type, environmental requirements and specifications, etc., as mandated by local and
national electrical codes and recommendations and as such the value of the overcurrent protection device may
be other than the recommended maximum 15 Amperes.
Note: The power module can be hot swapped (i.e., swapped while the chassis is in operation) provided the
power module has been disconnected from its external power source.
To connect power to the DC power module in the ION219 chassis, do the following:
1. Turn main power source OFF.
2. Loosen the two (2) mounting screws, attaching the Euro Block to the power module and pull it from the
power module. See Figure 4.
Figure 4: Removing the Euro Block from Power Module
3. Note polarity; insert the two (2) power wires into the Euro Block. The IONPS-D-R1 has reverse polarity
protection; if incorrectly wired, the IONPS-D-R1 will not power up. If incorrectly wired, change the wiring
connection polarity and continue.

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4. Use the two (2) wire-securing screws to secure the power wires in the Euro Block. See Figure 5 below.
Figure 5: Installing Power Wires
5. Connect the other end of the power wires to the main power source.
6. Reinsert the Euro Block into the power module and secure it using the two (2) Euro Block mounting screws,
shown in Figure 5 above.
WARNING: Equipment grounding is vital to ensure safe operation. The installer must ensure that the power
module is properly grounded during and after installation. Failure to observe this warning could result in an
electric shock.
7. Turn the main power ON: the power LED on the power module should be ON and the fan will be rotating.

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Redundant (Failover) Chassis Power Module
Note: In a dual redundant power module configuration (second module inserted into the chassis), the fan in the
second power module will operate without external power applied, if power is applied to the chassis.
This provides extra chassis heat exhaust when the power module is not in use, and in stand-by mode.
To install and set up a second power module for redundancy (failover):
1 Remove and keep the two (2) 6-32 Philips head screws attaching the slot cover to the chassis. See Figure 6.
Figure 6: Remove Slot Cover
2. Remove the Euro Block from the power module.
3. Ensure that the main power source is switched OFF.
4. Note polarity, insert the two (2) power wires into the Euro Block and secure them. The IONPS-D-R1 has
reverse polarity protection; if incorrectly wired, the IONPS will not power up. Change the wiring connection
polarity and continue.
5. Insert the Euro Block into the power module and tighten the two (2) screws to secure it to the chassis.
6. Connect the ground wire to the power module chassis.
7. Slide the second power module into the chassis. See Figure 7 below.
Note: The fan in the second power module will operate without external power applied, if power is applied to
the chassis.

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Figure 7: Power Module Installation
8. Secure the power module to the chassis with the two 6-32 Philips head screws.
9. Switch main power source ON —the LED on the redundant module should be lit.
Power Module Redundancy
The IONPS-D-R1, DC Power Module includes Instant failover (IFO) circuitry that provides the capability for the
primary Power Module to power the chassis backplane while the Secondary Power Module is in ‘hot’ standby
mode. If the IFO circuitry detects the loss of primary power, the Secondary Power Module instantly provides
power to the chassis backplane. When primary power is restored, the IFO circuitry places the Secondary Power
Module in ‘hot’ standby mode. The chassis primary Power Module is located in the left slot of the chassis as
viewed from the rear. The chassis Secondary Power Module is located in the right slot of the chassis as viewed
from the rear.
A single Power Module installed in either bay can power the chassis backplane.
The IONPS-D-R1 Power supplies provide failover and load sharing. See Failover and Load Sharing on page 8.

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3. Maintenance
WARNING: Do not connect the power module to the external power source before installing it into the chassis.
Failure to observe this warning could result an electrical shock, even death.
Replacing the Power Supply Module
Note: The power supply can be hot swapped (i.e., swapped while the chassis is in operation) provided that it is
not connected to an active (switched ON) external power source. To replace the power module:
1. Make sure that the external power source is switched OFF.
2. Remove the chassis grounding lug if necessary.
3. Remove the ground wire connected to the power module.
4. Remove the Euro Block containing the power wires.
5. Remove and keep the two (2) 6-32 Philips head screws, securing the power module to the chassis.
6. Carefully pull the power module from the chassis.
7. Locate the new power module.
8. Install the Euro Block containing the two (2) power wires. The IONPS-D-R1 has reverse polarity protection; if
incorrectly wired, the IONPS-D-R1 will not power up. Change the wiring connection polarity and continue.
9. Position the power module at the chassis slot, as shown in Figure 8 below.
10. Slide the power module completely into the chassis slot.
11. Insert the two screws to attach the power module to the chassis.
Figure 8: Replacing the Power Module
12. If necessary, attach the chassis grounding log.
13. Switch the main power source to the ON position. The fan is operational and the power LED is lit.