Dialogic SS7G21, SS7G22 manual Removing and Installing the Top Cover

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Chapter 10 Working Inside the Product

Caution

Electrostatic Discharge (ESD) and ESD Protection:

ESD can damage Hard Disk Drives (HDDs), boards, and other parts. We recommend that you do all procedures in this chapter only at an ESD-protected workstation. If one is not available, provide some ESD protection by wearing an anti-static wrist strap attached to chassis ground (any unpainted metal surface) on your product when handling parts.

Caution

ESD and Board Handling:

Always handle boards carefully. They can be extremely sensitive to ESD. Hold boards only by their edges. After removing a board from its protective wrapper or from the product, place it on a grounded surface free of static electricity. Do not slide boards over any surface.

Caution

Cooling and Air Flow:

For proper cooling and airflow, always install the Top Cover before turning on the product. Operating the product without the Top Cover in place can damage product components.

10.3Removing and Installing the Top Cover

Removal of the Top Cover is necessary when installing or removing internal components. The Top Cover does not have to be removed when installing or replacing Power Supply Modules or Hard Disk Drives (HDDs), but it must be removed for installing SS7 Signaling Boards.

WARNING

If the unit is rack-mounted, make sure that the rack is anchored securely so it will not tilt forward when the unit chassis is extended. A crush hazard exists should the rack tilt forward that could cause serious injury.

Caution

For proper cooling and airflow, do not operate the SS7G21 or SS7G22 with the Top

Cover removed. Always reinstall the Top Cover before turning the unit on.

To remove the Top Cover, follow this procedure:

1.Remove the Top Cover securing screw, which is on the side of the unit, near the back corner (labelled A in Figure 19). Retain the screw for replacement when the Top Cover is refitted.

2.Push down on the blue locking button on the Top Cover while sliding the Top Cover rearward to release it from the chassis.

3.Lift the Top Cover up to remove.

To install the Top Cover (after completing internal work), follow this procedure:

1.Place the Top Cover over the top of the chassis, slightly back from the front panel.

2.Slide the Top Cover forward until the blue locking button snaps shut.

3.Replace, and securely tighten, the Top Cover securing screw (labeled A in Figure 19).

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Contents Dialogic SS7G21 and SS7G22 Signaling Servers Publication Date January Document Number 05-2300-007, Issue Contents Figures IndexDate Issue No Description TablesRevision History Part 1 User’s Guide Qualified Service Technician Operations If AC Power Supplies are Installed Mains AC Power Disconnect If DC Power Supplies are Installed Isolation Page Introduction PurposeProducts Power Supplies SS7 Signaling BoardsServer Board Hard Disk DriveEthernet Ports CoolingRelated Information Applicability Product ApplicabilityProduct ID Description Product Specification DC Power Supply ModuleAC Power Supply Module Signaling LinksPCM Interface SS7 Serial InterfacesEthernet Interfaces Alarm Outputs Controls and IndicatorsSerial Port COM2 MNR Alarm LED amber PWR Alarm LED amber Activity/Fault LED green/amberID switch Visual Indicators on the Ethernet PortsPhysical Specifications Environmental SpecificationsProduct Reliability Calculated Product ReliabilityProduct Specification Regulatory Specifications and Declarations Specifications Demonstrating Compliance Safety ComplianceElectromagnetic Compatibility EMC Telecommunications Compliance US ICKCNNANSS7HDPDeclaration of Conformity Declarations of the Manufacturer or ImporterNo D0006 Česky FCC Part 15 ElectroMagnetic Compliance Statement USA FCC Part 68 Statement USATelecommunications Attachment Notice Canada Telecommunications Notice Australia / New ZealandTelecommunications Notice Taiwan Safety 2 EMC Installation of CablesEssential Compliance Information Further InformationProduct Environmental Information Regulatory Specifications and Declarations Hardware Description OverviewFront Panel Control, Indicator and Switch Function Summary Feature Description More InformationFront Panel Back Panel Description InformatioRack Mounting Options DC Power Input Terminal Block Safety Ground Studs for EarthingAC Power Input InterfacesPCM Interface Ports Connector Pinouts SS7 Serial Interface PortsPin No Direction Function SS7 Serial Interface Connector Aux on SPCI2S SS7 Serial Interface Ports Dual V.11 Connector PinoutsEthernet Interfaces Connectors Ethernet Interface Connector Pinouts Serial Port COM2 ConnectorAlarms Pin No DescriptionPart 2 Service Technician’s Guide Page Qualified Service Technician Operations If AC Power Supplies are Installed Mains AC Power Disconnect If DC Power Supplies are Installed Isolation Page Tools and Supplies Needed Tools and Supplies NeededTools and Supplies Needed Product Installation and Hot-Swap Actions Installation OverviewPower Supply Related Actions Replacement of Power Supply Module in AC Products Safety Ground Studs, Conductor InstallationDC Power Supply Module, Initial Connections DC Power Supply Module Terminal Block DC Power Supply Module, Transferring Connections AC-input Power Supply Cage, ConnectionProduct Installation and Hot-Swap Actions Unlocking and Removing an AC Power Supply Module Hard Disk Drive HDD ReplacementBacking up the System Configuration Files Backed Up to the syslog Subdirectory at StartupReplacing the Hardware File Type DescriptionRestoring the System Configuration Replacing the Hard Disk DriveProduct Installation and Hot-Swap Actions Safety Before Removing the Top Cover Working Inside the ProductRemoving and Installing the Top Cover Top Cover Removal and Installation Internal Product Layout 10.5 SS7 Signaling Boards Preparing Spci Signaling Boards for Installation in SS7G21Major Components in an SS7G21 and SS7G22 Chassis SS7G21 VariantsBoard Boards Switch D1W D2W Position D3W / Q3W Setting Positions Q1W Q2WQuantity of Boards Variant Suffix Board Position JumpersInstalling or Replacing an SS7 Signaling Board Boards Position Switch 00W H1W H2W H3W SettingInstalling and Replacing an SS7 Signaling Board Replacing the Back-up Battery CT Bus Cable NotesVarning Working Inside the Product International Warnings International Warnings Avertissements Français Avertissements Français suite Warnung Deutsch Warnung Deutsch Fortsetzung Avvertenza Italiano Avvertenza Italiano continua Advertencia Español Advertencia Español continuación Operating Mode IDs Part Number ReferenceProduct ID Description SS7G21 and SS7G22 Product IDs Protocol Module IDsAccessories Expansion Options or Spare AssembliesSoftware Licensing Information Linux Software DistributionGNU C Library Software Licensing Information Connecting to V.11 V.35-Compatible SS7 Links Connectors on the SPCI2S Signaling BoardAppendix a CablingConnecting an SPCI2S to an M34 Block Connector Connecting an SPCI2S to a Nortel DMS100Connecting an SPCI2S to an Inet Tester Configuring the SIU SPCI2S to Operate on V.11 Ports ClockingSPCI2S/SIU Generates Clocking SPCI2S/SIU Receiving ClockAppendix a Glossary CT BusGlossary Index FCCMtbf Switches
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