48VDC manual
Contents
1. Modulus with power removed from the unit test the resistances with a multimeter as follows For all connections the meter should read o Q m IMPORTANT Ensure that power is removed from the unit by disconnecting the wires from terminals 1 2 and 3 and by setting the POWER switch to the OFF left position Connect the multimeter s negative probe to the a Comm terminal and the positive probe to the 5V terminal b Comm terminal and the positive probe to the 12V terminal c Comm terminal and the positive probe to the 12V terminal d 5V terminal and the positive probe to the 12V terminal e 5V terminal and the positive probe to the 12V terminal f 12V terminal and the positive probe to the 12V terminal If any resistance readings are not Q contact Motorola ISG Customer Support Contact information is listed at the back of this document Test the input voltage at the power source If it is not within specifications have it corrected If the Modulus still does not operate correctly contact Motorola ISG Customer Support Contact information is listed at the back of this document PostScript error nostringval nostringval2. connect an alarm mechanism to the alarm relay terminals marked 5 and 6 10 If you connected an alarm mechanism in the step above set the rear panel Failure Output switch to one of these options e FAIL OPEN Alarm relay contacts 5 and 6 are open when the power supply module fails e FAIL SHORT Alarm relay contacts 5 and 6 are shorted when the power supply module fails 11 Replace the terminal cover as follows a Trail the wires through the cover s right slot b Hook the cover s tabs into the Modulus rear panel holes c Engage and tighten the captive screw until it is snug 12 Connect the power cables to the SELV power source 13 Apply power to the enclosure 14 Set the circuit breaker switch marked Power to the ON right position 15 From the front of the Modulus note the LEDs visible between the fan blades Figure 2 The LEDs show DC voltage and cooling fan status e When the LEDs are green the enclosure is operating OK e When an LED is off a component is not OK Refer to the Installation Troubleshooting procedure at the end of this notice Part No 09564 3 Rev A December 1995 Installing a Modulus 9 48VDC Enclosure Page 5 of 8 Figure 1 shows the Modulus 9 48 VDC enclosure rear panel 2 48V Return 1 Primary 48V Input of Ter Captive Sc Terminal Cover Circuit Breaker Switch OFF open ON closed Failure Output
3. Overview Introduction Safety A Part No 09564 3 Rev A December 1995 Page 1 of 8 MODULUS 9 48VDC ENCLOSURE Documentation Update This document contains update information for the 48 Volt direct current VDC Modulus 9 equipment enclosure The Modulus 9 was previously available only in alternating current AC models Warning Only qualified service personnel should perform the procedures described in this notice Use of these procedures by unqualified personnel could result in personal injury or equipment damage and could jeopardize your warranty and maintenance agreement The enclosures are approved in accordance with the following standards Installation as an office machine or an item of information technology equipment must comply with these standards Compliance with Safety Standards Standard 48VDC Modulus 9 EN 60950 1992 Yes EN41003 Yes UL 1950 Yes CSA C22 2 No 950 Yes m IMPORTANT The Modulus 9 enclosure s input voltage must be supplied by a Safety Extra Low Voltage SELV Isolated Secondary or Battery Circuit source 09564 3 A Part No 09564 3 Rev A December 1995 Page 2 of 8 Modulus Package The Modulus 9 48 VDC shipping carton contains Contents e The Modulus 9 enclosure e The Modulus 9 and 21 Installation and Operation Guide e This document Remove the parts and store the carton for later re use If parts are missing contact your Motorola ISG Customer S
4. Rocker Switch 5VDC 12VDC 12VDC Common Ground Lo Test Terminals Figure 1 48VDC Modulus 9 Enclosure Rear View The rear panel terminal connectors function as follows Rear Panel Terminal Connectors Left to Right This Terminal Connects to the Fan or power failure relay Fan or power failure relay Chassis ground Optional redundant 48 VDC input 48VDC return Primary 48VDC input m Mw hh UN Part No 09564 3 Rev A December 1995 Installing a Modulus 9 48VDC Enclosure Page 6 of 8 Figure 2 shows the Modulus 9 48VDC enclosure front view Front View Key taped inside front door DC Output St Input Voltage Status LED Fan Status LE Figure 2 48VDC Modulus 9 Enclosure Front View Status LEDs Part No 09564 3 Rev A December 1995 Page 7 of 8 Troubleshooting a 48V Modulus 9 Enclosure Check the enclosure for proper operation as follows Refer to Figures 1 and 2 Troubleshooting a Modulus 9 48VDC Enclosure Action From the front of the Modulus note the LEDs visible between the fan blades Figure 2 The LEDs show component status e When the LEDs are green the enclosure is operating OK No troubleshooting is needed e When the left LED is off there may be a problem with the input voltage or the LED itself Check the power source e When the upper right LED is off there may be a problem with the output voltage or the LED itself e When the lower right LED is off th
5. ere may be a problem with the cooling fan or the LED itself If an LED is off continue with this procedure Check the circuit breaker switch Figure 2 Ensure that it is in the ON right position From the front of the Modulus note the fan blades When power is applied to the Modulus the blades should rotate If they do not replace the power supply module Refer to the Modulus 9 and 21 Installation and Operation Guide for details Step 1 2 3 4 8 0 O o From the rear of the Modulus with power applied to the unit test the power outputs with a multimeter as follows a Connect the multimeter s negative probe to the Common Ground Comm terminal and the positive probe to the 5V terminal The meter should read about 5V b Connect the multimeter s negative probe to the Comm terminal and the positive probe to the 12V terminal The meter should read about 12V c Connect the multimeter s negative probe to the Comm terminal and the positive probe to the 12V terminal The meter should read about 12V If any power outputs are not correct replace the power supply module Refer to the Modulus 9 and 21 Installation and Operation Guide for details Part No 09564 3 Rev A December 1995 Troubleshooting a 48V Modulus 9 Enclosure Page 8 of 8 Troubleshooting a Modulus 9 48VDC Enclosure continued Step Action 5 From the rear of the
6. ount operation Note the key taped inside the front door as shown in Figure 2 You can lock the enclosure to prevent unauthorized access 2 If the enclosure is empty install communications product backplane s in it as described in the Modulus 9 and 21 Installation and Operation Guide Chapter 3 3 ag IMPORTANT At the rear of the enclosure ensure that the Power switch is in the OFF left position 4 At the rear of the enclosure remove the terminal cover by unscrewing the captive screw and pulling up and out Figure 1 Part No 09564 3 Rev A December 1995 Installing a Modulus 9 48VDC Enclosure Page 4 of 8 Installing a Modulus 9 48VDC Enclosure continued Step Action 5 Obtain UL CSA approved power cables and connectors with insulated crimp on terminals The power cables must be rated for at least 8A input current Use cable harnesses and terminal connector assemblies that conform to applicable electrical codes Connect the primary power input wires to the terminals marked 48V A and 48V Return Bend the wires to the right so that they will trail through the terminal cover s right slot when you replace it m IMPORTANT Connect the ground wire to the terminal marked Chassis Ground Optionally connect the second set of input wires to the terminals marked 48V B and 48V Return In this case the 48V Return terminal accepts two wires Optionally
7. upport representative Tools Needed The following tools and supplies are required for procedures in this notice e Grounding wrist strap e Straight blade screwdriver e Crimper e Multimeter Part No 09564 3 Rev A December 1995 Page 3 of 8 Installing a Modulus 9 48VDC Enclosure Assembling an The Modulus 9 is shipped from the factory in one of these ways Enclosure e Unassembled with a power supply e Assembled containing product cards and backplanes filler panels and a power supply module Determine which way your enclosure was shipped Follow the appropriate instructions in the installation procedure below Positioning an The Modulus 9 can be positioned as follows Enclosure e On a flat surface a tabletop or bench e On a shelf in a standard 19 inch electrical equipment rack Determine which way your enclosure will be positioned Follow the appropriate instructions in the installation procedure below Installing an Install the enclosure as follows Refer to the Modulus 9 and 21 Installation and Enclosure Operation Guide for general enclosure information 4 Warning Before beginning the installation procedure ensure that the electrical power source is disconnected from input wires to be connected to the Modulus Installing a Modulus 9 48VDC Enclosure Step Action 1 Position the enclosure on e A flat surface for standalone operation e An equipment rack shelf for rack m
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