mhs presentation 2-20-08 v2 final

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  • 7/31/2019 MHS Presentation 2-20-08 v2 FINAL

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    2008 Exalt Communications Inc.All Rights Reserved. www.exaltcom.com

    Monitored Hot Standby

    (MHS) Solution

    Monitored Hot StandbyMonitored Hot Standby

    (MHS) Solution(MHS) Solution

    EXEX

    --i Seriesi Series

    February 2008February 2008

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    EX-i Series

    Monitored Hot Standby Kit

    EXEX--i Seriesi Series

    Monitored Hot Standby KitMonitored Hot Standby KitDescription

    Single fault 1+1 equipment protectionCurrently available for EX-2.4i-16, EX-5i-16 and EX-5i-F

    MHS Kit Contents1 RU Exalt MHS Panel4x T1/E1 protection cables

    1x synchronization cable (CAT-5)1x secondary AUX management cable (CAT-5)

    1x primary management control cable (serial)2x RF cables

    MHS Cable Kit Contents4xT1/E1 protection cables for configurations greater than the basemodel 4xT1/E1None needed for EX-5i-F

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    Monitored Hot Standby

    Block Level Diagram

    Monitored Hot StandbyMonitored Hot Standby

    Block Level DiagramBlock Level Diagram

    Radio ASecondary

    Radio APrimary

    Radio BSecondary

    Radio BPrimary

    RFSwitch

    RFSwitchT1/E1 T1/E1

    Local LAN Local LAN

    Sync

    Sync

    Control

    Control

    Ethernet

    switchor Router

    Ethernet

    switchor RouterExalt EX-i Series radios

    Exalt MHS kit

    Customer provided equipment

    Customer provided cabling

    Note: MHS protectionis not available for V.35ports on the EX-5i-F

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    Monitored Hot Standby

    Endpoint Wiring Diagram

    Monitored Hot StandbyMonitored Hot Standby

    Endpoint Wiring DiagramEndpoint Wiring Diagram

    RF Switch

    T1/E1 protection cable

    Note: MHS protectionis not available for V.35ports on the EX-5i-F

    Control and synccabling

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    Exalt MHS PanelExalt MHS PanelExalt MHS PanelMHS Panel

    24 or 48VDC Operation

    MHS Panel preconfigured for24VDC operationMHS Panel must be modified priorto installation for 48VDC operation

    5 rack spaces totalMount MHS panel in central 1RUPrimary radio mounts below MHSpanel. Occupies 1.5RU.Secondary radio mounts aboveMHS panel. Occupies 1.5RU.Extra 0.5RU airspace above andbelow the system for ventilation

    Cut this wire

    For 48VDC operation

    Secondary Radio

    Primary Radio

    RF switch

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    Exalt MHS Wiring DetailExalt MHS Wiring DetailExalt MHS Wiring DetailT1/E1 cables

    All ports connected in parallel via

    T1/E1 protection Y cable.

    4 cables provided in kit for baseconfiguration. Up to 16xT1/E1 withoptional 4x cable kit accessory.

    Female RJ45 connector in protectionY cable allows extension of T1/E1

    cabling to existing DSX frame ortermination.

    MHS RF Switch Control

    9 pin connector cable (part of MHSpanel wire harness) connected tosecondary radio ALARMS port

    ALARMS port on secondary radio isunavailable for normal use. ALARMSport of primary radio operatesnormally

    Port 1

    Port 1

    Port 1 interfacesconnected via

    protection Y cable

    Female RJ45 connectorfor T1/E1 wiring

    ALARMS port insecondary radioused for RF switchcontrol

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    Exalt MHS Wiring DetailExalt MHS Wiring DetailExalt MHS Wiring DetailPrimary management control

    The serial cable connects Console

    ports on both primary and secondaryradios

    Secondary management controlGray CAT-5 cables connect AUXEthernet ports on both primary andsecondary radios

    Used for redundancySynchronization

    Yellow CAT-5 cable connects SYNCOUT in primary radio to SYNC in ofsecondary radioPrimary radio SYNC IN may be used

    as input from external ExaltSync GPSor collocated EX-i Series radioSYNC OUT of secondary radio maybe used to sync collocated radios

    Console portPrimarymanagement control

    AUX Ethernet portSecondarymanagement control

    Sync portsPrimary: SYNC OUTSecondary: SYNC IN

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    MHS Configuration PageMHS Configuration PageMHS Configuration Page

    Radios should be configured

    prior to physical installationMHS default is Disable

    Partner IP Address

    Used to identify the primary orsecondary partner for sameendpoint

    MHS Designation

    Used to identify MHS primaryor secondary role

    Physical wiring must beaccording to the assigned

    role

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    MHS Configuration PageMHS Configuration PageMHS Configuration PageAdditional MHS features

    Lock On can force the online or standby

    behavior of a primary or secondary radioNormal: normal MHS behavior

    Online: force Online status

    Standby: force Standby status

    Lock On Timeout

    Time duration of lock on

    20 sec, 10 sec, or infiniteUseful when performing maintenance ortesting protection setup

    Should be set to default for normaloperation

    Lock On: No lock on (Normal)

    Lock On Timeout: 20 seconds

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    MHS Status PageMHS Status PageMHS Status PagePartner IP Address

    IP address for primary or secondary MHS

    partner for same endEntered in MHS Configuration screen

    Designation

    MHS primary or secondary role

    Entered in MHS Configuration screen

    Radio StatusIndicates whether a primary or secondaryradio for a particular endpoint is eitheronline or standby

    Protection Link Status

    Verifies protection links are operating

    normally

    Configuration status

    Validates proper configuration of MHSparameters

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    MHS Operation

    Normal State

    MHS OperationMHS Operation

    Normal StateNormal State

    OnlineNormalPrimary

    StandbyNormalSecondary

    StatusConditionRadio A

    Radio A

    Secondary

    Radio A

    Primary

    Radio B

    Secondary

    Radio B

    Primary

    T1/E1 T1/E1

    Local LAN Local LAN

    Sync

    Sync

    Control

    Control

    Ethernetswitch

    or Router

    Ethernetswitch

    or Router

    OnlineT1/E1path

    Onlinedata path

    OnlineNormalPrimary

    StandbyNormalSecondary

    StatusConditionRadio B

    active ports

    Linkbeat always on

    T1/E1

    ports intri-statemode

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    MHS Operation

    Radio Failure Scenario

    MHS OperationMHS Operation

    Radio Failure ScenarioRadio Failure Scenario

    Radio A

    Secondary

    Radio A

    Primary

    Radio B

    Secondary

    Radio B

    Primary

    T1/E1 T1/E1

    Local LAN

    Sync

    Sync

    Control

    Control

    Ethernetswitch

    or Router

    Ethernetswitch

    or Router

    OnlineT1/E1path

    Onlinedata

    path

    T1/E1 and LAN traffic isrouted to secondary RadioA and RF switched within~5 sec*. Only the endpointexperiencing the problemis switched

    OfflineCriticalAlarm

    Primary

    OnlineNormalSecondary

    StatusConditionRadio A

    OnlineNormalPrimary

    StandbyNormalSecondary

    StatusConditionRadio B

    Complete system failuregenerates critical alarm insecondary radio and SW

    control initiates switchover

    active ports

    T1/E1portsout oftri-statemode

    Data internally routed to port

    * Approximate switching time in first release.

    Switch/Router updatesMAC table andforwards packets tosecondary radioEthernet port

    Loss of linkbeat

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    MHS Operation

    Normal State After Switchover

    MHS OperationMHS Operation

    Normal State After SwitchoverNormal State After Switchover

    Radio A

    Secondary

    Radio A

    Primary

    Radio B

    Secondary

    Radio B

    Primary

    T1/E1 T1/E1

    Local LAN Local LAN

    Sync

    Sync

    Control

    Control

    Ethernetswitch

    or Router

    Ethernetswitch

    or Router

    OnlineT1/E1

    path

    Online

    datapath

    Critical Alarm Clears

    StandbyNormalPrimary

    OnlineNormalSecondary

    StatusConditionRadio A

    OnlineNormalPrimary

    StandbyNormalSecondary

    StatusConditionRadio B

    T1/E1 and LAN routeis maintained and is notswitched until anothercritical event occurs.*

    * It is possible to manually force the T1/E1 and LAN traffic bac