ipaso alarms english

14
0 0 ODU Alarm and Status Indication Category Descriptions Severity TXPWR ALM Alarm The TX PWR is lower than 3 dB. MJ TX INPUT ALM Alarm The TX IF signal become out of range from -29 dBm ± 5 dB. MJ RXLEV ALM Alarm The reception level become lower than -72dBm ~ -94dBm level.(It depends on the modulation system and bit rates). MJ ODU CPU / Cable Open Alarm CPU of ODU is faulty or IF CABLE between IDU - ODU of ODU is broken or is not connected. MJ MUTE STATUS Status Indicates the control status of the ODU TX power output. When the TX power is set to Mute, Status is issued. - LO REF Alarm Loss of Ref LO signal of ODU. MN TX SW Status Status Radio interface TX SW usage state in 1+1 HS Redundant configuration - ODU ALM Alarm Indicates one of the TXPWR ALM, ODU PS ALM, APC ALM, TPC ALM, ODU SELF CHECK ALM occurrence MJ ODU TOTAL ALM Alarm Indicates one of the TXPWR ALM, TX INPUT ALM, RX Level ALM, ODU CPU/CABLE OPEN ALM, LOREF, ODU ALM occurrence. Highest severity will be displayed ATPC Power Mode Status ATPC control signal fault (90sec) as well as MAX Power continuation 90sec - ODU TYPE MISMATCH Alarm Indicate connected ODU type is not supported at iPASOLINK system, or ODU type cannot use in provisioned modulation setting. MJ ODU PS ALM Alarm ALM in a case of Power supply interruption to ODU. MJ ODUPS SET STATUS Status Status indication of the protection switch for ODU power supplies -

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DESCRIPTION

IPasolink Alarms Description

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  • 0 0

    ODU Alarm and Status

    Indication Category Descriptions Severity

    TXPWR ALM Alarm The TX PWR is lower than 3 dB. MJ

    TX INPUT ALM Alarm The TX IF signal become out of range from

    -29 dBm 5 dB.

    MJ

    RXLEV ALM Alarm The reception level become lower than -72dBm ~ -94dBm level.(It

    depends on the modulation system and bit rates).

    MJ

    ODU CPU / Cable

    Open Alarm

    CPU of ODU is faulty or IF CABLE between IDU - ODU of ODU is broken

    or is not connected.

    MJ

    MUTE STATUS Status Indicates the control status of the ODU TX power output. When the TX

    power is set to Mute, Status is issued. -

    LO REF Alarm Loss of Ref LO signal of ODU. MN

    TX SW Status Status Radio interface TX SW usage state in 1+1 HS Redundant configuration -

    ODU ALM Alarm Indicates one of the TXPWR ALM, ODU PS ALM, APC ALM, TPC ALM,

    ODU SELF CHECK ALM occurrence MJ

    ODU TOTAL ALM Alarm Indicates one of the TXPWR ALM, TX INPUT ALM, RX Level ALM, ODU

    CPU/CABLE OPEN ALM, LOREF, ODU ALM occurrence.

    Highest

    severity will

    be displayed

    ATPC Power

    Mode Status

    ATPC control signal fault (90sec) as well as MAX Power continuation

    90sec -

    ODU TYPE

    MISMATCH Alarm

    Indicate connected ODU type is not supported at iPASOLINK system, or

    ODU type cannot use in provisioned modulation setting. MJ

    ODU PS ALM Alarm ALM in a case of Power supply interruption to ODU. MJ

    ODUPS SET

    STATUS

    Status Status indication of the protection switch for ODU power supplies -

  • 1 1

    Modem Alarm and Status

    Indication Category Descriptions Severity

    Unequipped (MODEM-A) Alarm Reserved and installed optional package is removed from optional slot. MJ

    Type Mismatch(MODEM-A) Alarm The equipped type of interface is different from configured type. MJ

    Communication FAIL(MODEM-A) Alarm Communication failure of equipment internal control communication. MJ

    Module(MODEM-A) Alarm Equipment fault MJ

    BUS ERROR TX Alarm Data communication BUS failure condition in TX direction from STM-1 Card. MJ

    BUS ERROR RX Alarm Data communication BUS failure condition in RX direction from STM-1 Card. MJ

    RXSW STATUS Status Radio interface RX SW usage state in Redundant configuration -

    LOSS OF FRAME Alarm Loss of Frame at radio side. MJ

    FRAME ID Alarm Frame ID (route differentiation ID) MJ

    HIBER ALM Alarm Radio signal degradation (High BER threshold detection). (Threshold :1E-3/1E-4/1E-5) MJ

    LOBER ALM Alarm Radio signal degradation (Low BER threshold detection). (Threshold. :1E-6/1E-7/1E-8/1E-9) MN

    EARLY WARNING Alarm Radio signal degradation (Early Warning threshold detection). (Threshold :1E-9) MN

    MOD Alarm Indicates the operating status of the MOD. When any failure occurs in the modulator section, Alarm is issued. MJ

    IF CABLE SHORT Alarm IF cable between IDU - ODU is in short condition. MJ

    INPHASE. Status In - Phase indicates the received signal DADE status between No.1 and No.2 MODEM interfaces are in Phase

    condition. In this condition, hitless switch over is available.

    -

    L2SYNC LOSS Alarm Loss of frame synchronization of GFP frames on MODEM port. MJ

    RDI Alarm RDI indication reception alarm on MODEM port MJ

    UAE. Alarm UAE alarm. Indicates the occurrence of an Unavailable state. MN

    TDM/AMR Range Mismatch Alarm Mismatch condition when the mapping number of E1 channels are different between TX and RX modem ports or

    mismatch condition of selected RX AMR modulation range and TX AMR modulation range.

    MJ

    TX SW Reverse Request Status TXSW request signal receiving condition from the opposite station: -

    TX SW Lock in Status Status TXSW Lockin state -

    Unlocked Alarm Wireless synchronization status of the local side. MJ

    MODEM PS OFF Status Indicate power off condition of power switch which is in front of MODEM-A card. -

  • 2 2

    STM-1 Alarm and Status

    Indication Category Descriptions Severity

    Unequipped (STM1-A) Alarm Reserved and installed optional package is removed from optional slot. MJ

    Type Mismatch(STM1-A) Alarm The equipped type of interface is different from configured type. MJ

    Communication

    FAIL(STM1-A) Alarm Communication failure of equipment internal control communication. MJ

    Module(STM1-A) Alarm Equipment fault MJ

    BUS ERROR TX Alarm Data communication BUS failure condition in TX direction from STM-1 Card. MJ

    BUS ERROR RX Alarm Data communication BUS failure condition in RX direction from STM-1 Card. MJ

    SNCP PPS-FAIL Alarm. SNCP Path Protection Failure MJ

    SNCP Protection Status Status SNCP Path Protection Status indication which indicates [FS, SF, SD, MS, NR] condition. -

    APS Protection Status Status APS Line Protection Status indication which indicates {FS,SF,SD,MS,NR} condition. -

    APS Lock-in Status Status APS protection Lock-in Condition. -

    SFP_Type Mismatch

    (STM1) Alarm Mismatch between SFP on LCT and installed SFP. MJ

    SFP Unequipped (STM1) Alarm A SFP is removed. MJ

    STM-1LOS Alarm LOS detection on STM-1 Optical port. MJ

    STM-1 TF Alarm Transmit Failure detection on STM-1 optical port. MJ

    RS LOF Alarm SDH Frame synchronization lost in RS (Regenerator Section) on STM-1 port. MJ

    RS TIM Alarm Trace Identifier Mismatch detected in RS (Regenerator Section) on STM-1 port. MJ

    RS EXC Alarm B1 Byte error occurrence in RS (Regenerator Section) on STM-1 port. MJ

    RS DEG Alarm B1 byte error in RS (Regenerator Section) (RS - Degraded) on STM-1 port. MN

    MS AIS Alarm AIS detection in MS (Multiplex Section) on STM-1 port. MJ

    MS RDI Alarm Remote Defect Indication reception in MS (Multiplex Section) on STM-1 port. MJ

    AU AIS Alarm AIS detection in AU (Administrative Unit) on STM-1 port. MJ

  • 3 3

    STM-1 Alarm and Status

    Indication Category Descriptions Severity

    AU LOP Alarm Loss of AU pointer happens on STM-1 port. MJ

    HP UNEQ Alarm HOP (Higher Order Path) Unequipped occurrence on STM-1 port. MJ

    HP TIM Alarm HOP (Higher Order Path) Trace Identifier mismatch occurrence on STM-1 port. MJ

    HP-PLM Alarm Payload Label Mismatch occurrence in HOP (Higher Order Path) on STM-1 port. MJ

    HP-RDI Alarm RDI (Remote Defect Indication) reception in HOP (Higher Order Path) on STM-1 port. MJ

    HP-LOM Alarm Loss of Multi-Frame on STM-1 port. MJ

    TU -AIS Alarm In TU (Tributary Unit), AIS detection on STM-1 port. MJ

    TU -LOP Alarm Loss of TU Pointer on STM-1 port. MJ

    LP -UNEQ. Alarm LP (Lower Order Path) Unequipped occurrence on STM-1 port. MJ

    LP RDI Alarm Remote Defect Indicate reception by an LP (Lower Order Path) on STM-1 port. MJ

    LP PLM Alarm Payload Label Mismatch Failure occurrence by an LP (Lower Order Path) on STM-1 port. MJ

    ALS Status Indication of automatic laser shutdown condition at STM-1 optical port. -

    RS UAS Status Status UAS status indication on STM port (Repeater Section) -

    STM-1 AIS Generated Status AIS generation condition on STM port. -

    PJE Status Pointer justification Event indication at STM port. -

  • 4 4

    16E1 alarm and Status

    Indication Category Descriptions Severity

    Unequipped (16E1) Alarm Reserved and installed optional package is removed from optional slot. MJ

    Type Mismatch(16E1) Alarm The equipped type of interface is different from configured type. MJ

    Communication FAIL(16E1) Alarm Communication failure of equipment internal control communication. MJ

    Module(16E1) Alarm Equipment fault MJ

    BUS ERROR TX Alarm Data communication BUS failure condition in TX direction from STM-1 Card. MJ

    BUS ERROR RX Alarm Data communication BUS failure condition in RX direction from STM-1 Card. MJ

    E1 LOS Alarm No signal input on E1 port MJ

    E1 AIS Status ALARM/Status category can change according to " AIS Received Condition

    Setting

    MJ / -

    Usage Error Alarm Unused E1 CH input signal detection. MN

    E1 AIS Generated Status AIS generation condition on every E1 Channels. -

  • 5 5

    AUX-A Option Card

    Indication Category Descriptions Severity

    Unequipped (AUX-A) Alarm Reserved and installed optional package is removed

    from optional slot.

    MJ

    Type Mismatch(AUX-A) Alarm The equipped type of interface is different from

    configured type.

    MJ

    Communication

    FAIL(AUX-A)

    Alarm Communication failure of equipment internal control

    communication.

    MJ

    Module(AUX-A) Alarm Equipment fault MJ

    BUS ERROR TX Alarm Data communication BUS failure condition in TX

    direction from STM-1 Card.

    MJ

    BUS ERROR RX Alarm Data communication BUS failure condition in RX

    direction from STM-1 Card.

    MJ

    Item Name (Input-x)

    Item Name (Cluster-x)

    Status/

    Alarm

    HKA Status Indication {Alarm, Normal} for every

    HKA input.

    - or

    Severity selectable

    Item Name (Output-x) Status HKC Status {Alarm, Normal} for every HKC output. -

  • 6 6

    GbE-A option card

    Indication Category Descriptions Severity

    Unequipped (GBE-A) Alarm Reserved and installed optional package is

    removed from optional slot.

    MJ

    Type Mismatch(GBE-

    A)

    Alarm The equipped type of interface is different

    from configured type.

    MJ

    Communication

    FAIL(GBE-A)

    Alarm Communication failure of equipment

    internal control communication.

    MJ

    Module(GBE-A) Alarm Equipment fault MJ

    BUS ERROR TX Alarm Data communication BUS failure condition

    in TX direction from STM-1 Card..

    MJ

    BUS ERROR RX Alarm Data communication BUS failure condition

    in RX direction from STM-1 Card..

    MJ

    SFP_Type Mismatch

    (ETH)

    Alarm Mismatch between SFP on LCT and

    installed SFP.

    MJ

    SFP Unequipped

    (ETH)

    Alarm A SFP is removed. MJ

    LAN LINK Alarm LINK of the LAN Port is disconnected. MJ

    Speed & Duplex Status LAN Port setting (Speed&Duplex) -

  • 7 7

    Equipment Common alarm and Status-1

    Indication Category Descriptions Severity

    MODULE (Main Board) Alarm Equipment fault MJ

    BUS ERROR Alarm Data communication BUS failure condition. MJ

    Unequipped (PS) Alarm Installed Power Supply Module is removed from PS slot. MJ

    Power Supply Alarm Alarm in case of power failure. MJ

    FAN Fail Alarm FAN failure MJ

    Unequipped (FAN) Alarm Installed FAN Module is removed from FAN slot. MJ

    Unequipped (CLK2M) Alarm Installed CLK2M Module is removed from Main Card. MJ

    Type Mismatch (CLK2M) Alarm The equipped type of interface is different from configured type. MJ

    IDU CPU Alarm Alarm. IDU CPU Alarm MN

    Memory Failure Alarm Detection of memory failure MJ

    USB Failure Alarm USB memory failure indication MJ

    Temperature Alarm The temperature is over the threshold MN

    Maintenance Status Maintenance declaration. -

    CLK FAIL Alarm Reference Clock Failed. MN

    CLK Drift Alarm Reference Clock source Frequency drift condition MN

    LTI Alarm Loss of all incoming timing source MJ

    CLK Status Changed Status Reference clock change status

    (1) (Locked Ref1)

    (2) (Locked Ref2)

    (3) (Locked Ref3)

    (4) Holdover

    (5) Freerun

    -

    SSM FAIL Alarm Received Sync Status Message value is in unstable condition. MN

    Quality Level Status Received quality level condition of each timing source. -

    Squelch Status The condition of External CLK Output is in squelch condition. -

  • 8 8

    Equipment common Alarm and Status -2

    Indication Category Descriptions Severity

    EXT CLK Condition Status Condition level of External CLK output. -

    EXT CLK LOS Alarm Loss of Signal condition of External clock input. MN

    EXT CLK AIS Alarm AIS (Alarm Indication Signal) condition of External Clock input. MN

    EXT CLK LOF Alarm Loss of frame condition of External Clock input. MN

    EXT CLK Loop Alarm Indication of EXTERNAL clock input is used as EXTERNAL clock output. MJ

    Item Name (Input-x)

    Item Name (Cluster-x)

    Status/

    Alarm HKA Status Indication {Alarm, Normal} for every HKA input.

    - or Severity

    selectable

    Item Name (Output-x) Status HKC Status {Alarm, Normal} for every HKC output. -

    E1 LOS Alarm No signal input on E1 port MJ

    E1 AIS Status

    PDH AIS ALARM/Status category can change according to " AIS Received Condition Setting MJ / -

    Usage Error Alarm Unused E1 CH input signal detection. MN

    E1 AIS Generated Status AIS generation condition on every E1 Channels. -

    ETH LOS Alarm LOS detection at Optical Ethernet port. MJ

    ETH TF Alarm Transmit Fail detection at Optical Ethernet port. MJ

    SFP_Type Mismatch (ETH) Alarm Mismatch between SFP on LCT and installed SFP. MJ

    SFP Unequipped (ETH) Alarm A SFP is removed. MJ

    LAN LINK Alarm LINK of the LAN Port is disconnected. MJ

    Speed & Duplex Status LAN Port setting (Speed&Duplex) -

    ETH-OAM LOC Alarm MJ

    ETH-OAM Mismerge Alarm Ether OAM Mismatch Detection notice. MN

    ETH-OAM Unexpected Period Alarm Ether OAM Unexpected MEP and Ether OAM Unexpected Period detection notice MN

    ETH-OAM RDI Alarm Ether OAM RDI reception detection notice MJ

  • 9 9

    Equipment common Alarm and Status -3

    Indication Category Descriptions Severity

    RSTP New Root Bridge Detect Status The notice in which new RootBridge was detected at the time of SpanningTree processing -

    RSTP Topology Changed Status The notice in which a Topology change was detected at the time of SpanningTree processing -

    RSTP Protocol Migration Status

    The notice which received a Bridge protocol Data Units different in classification of RSTP/STP at the

    time of SpanningTree processing -

    RSTP Invalid BPDU Received Status Invalid BPDU message at the time of SpanningTree processing -

    LLF Message Timeout Status

    Loss of a conditional signaling in which the LLF control signal should be received continuously from

    the opposite radio equipment.

    LLF Status LLF force a LINKDOWN status. The Ethernet port under "edge" mode becomes LINKDOWN. -

    IDU TOTAL ALM Alarm IDU TOTAL ALM

    The highest

    Severity will

    be reported

    Total FDB Full Status The number of DynamicEntryDynamic Entry in L2Switch has reached the maximum number.

    FDB Full Status FDB Full indication specified per VLAN basis.

  • 10

    ABBREVIATIONS-1

    ACAP Adjacent Channel Alternate

    Polarization

    ACCP Adjacent Channel Co-Polarization

    ACK Acknowledgement

    AGC Automatic Gain Control

    AIS Alarm Indication Signal

    ALM Alarm

    ALS Auto Laser Shutdown

    AMR Adaptive Modulation Radio

    ANT, Ant. Antenna

    APS Automatic Protection Switch

    ATT Attenuator

    ATPC Automatic Transmitter Power Control

    AU Administrative Unit

    AUX Auxiliary

    Ave Average

    BBE Background Block Error

    BER Bit Error Rate

    BPF Band Pass Filter

    BS Base Station

    BSC Base Station Controller

    BTS Base Transceiver Station

    CAPEX Capital Expenditure

    CBS Committed Burst Size

    CCDP Co-Channel Dual Polarization

    CCM Continuity Check Message

    CEPT Conference of European Postal &

    Telecommunication Administration

    CIR Committed Information Rate

    CKT Circuit

    CLK Clock

    CMF Channel Mismatch Failure

    CMI Coded Mark Inversion

    CONV Converter

    CORBA Common Object Request Broker

    Architecture

    CoS Class of Service

    CPU Central Processing Unit

    CR Critical

    CRC Cyclic Redundancy Check

    CS Channel Separation

    CTRL Control

    CV near end Code Violation

    CW Carrier Wave

    DA Destination Address

    DADE Differential Absolute Delay Equalizer

    DB Database

    DC Direct Current

    DCN Data Communication Network

    DEG Degraded

    DEI Drop Eligible Indicator

    DEM Demodulator

    Des(Dest) Destination

    DI Data-in

    DL Download

    DM Delay Measurement

    DMM Delay Measurement Message

    DMR Delay Measurement Reply

    DO Data-out

    DSCP Differentiated Services Code Point

    DUP Duplexer

    DXC Digital Cross Connect

    E1 E-carrier level 1

    EBS Express Burst Size

    EIR Excess Information Rate

    EMC Electro Magnetic Compatibility

    EML Element Management Layer

    EMS Element Management System

    EOW C Order Wire

    EPS ETH-Protection Switch

    EQL Equalizer

    ERP ETH-Ring Protection Switch

    ES Errored Seconds

    ETH-CC ETH-Continuity Check function

    ETH-LB ETH-Loopback function

    ETH-LBM ETH-Loopback Message

    ETH-LBR ETH-Loopback Reply

    ETH-LB ETH-Loopback function

    ETH-LT ETH- Link Trace function

    ETH-LTM ETH-Link Trace Message

    ETH-LTR ETH-Link Trace Reply

    ETH-OAM Ethernet Operations, Administration

    and Maintenance

  • 11

    ABBREVIATIONS-2

    ETH-OAM LB ETH-OAM Loopback

    ETH-OAM LT ETH-OAM Link Trace

    ETH-RDI ETH-Remote Defect Indication function

    ETSI European Telecommunications

    Standards Institute

    EXC Electrical Cross Connect

    E-to-E. End-to-End

    Fail Failure

    F/B Front Back Ratio

    FCS Frame Check Sequence

    FDB Forwarding Database

    FE Fast Ethernet

    FEC Forward Error Correction

    FEBBE Far End Background Block Error

    FEES Far End Errored Seconds

    FESES Far End Severely Errored Seconds

    FEUAS Far End Unavailable Seconds

    FPGA Field Programmable Gate Array

    F/W Firmware

    GbE, GBE Gigabit Ethernet

    3GPP Third Generation Partnership Project

    GUI Graphical User Interface

    H Horizontal

    HDB High Density Bipolar

    HK House Keeping

    HP Higher order Path

    HYB Hybrid

    H/W Hardware

    ID Identification

    IDU Indoor Unit

    IE Internet Explorer

    IEC International Electro technical

    Commission

    IEEE Institute of Electrical and Electronics

    Engineers

    I/F Interface

    IF Intermediate Frequency

    IHG iPASOLINK High Grade

    IN Input

    INTFC Interface

    I/O Input/Output

    IP Internet Protocol

    ITU International Telecommunication Union

    ITU-R Radio Communication Sector of ITU

    ITU-T Telecommunication Sector of ITU

    L2SW Layer2-Switch

    LAN Local Area Network

    LB Loopback

    LBM Loopback Message

    LCD Loss of Cell Delineation

    LCT Local Craft Terminal

    LDPC Low Density Parity Check

    LED Light Emitting Diode

    Lev. Level

    LLF Link Loss Forwarding

    LM Loss Measurement

    LMM Loss Measurement Message

    LNA Low Noise Amplifier

    LO Local Oscillator

    LOC Loss of Continuity

    LOF Loss of Frame

    LOM Loss of Multiframe

    LOP Loss of Pointer

    LO REF Local Reference Signal Loss

    LOS Loss of Signal

    LP Lower order Path

    LPM Link Performance Monitor

    LT Link Trace

    LTI Loss of incoming Timing Input

    LTM Link Trace Message

    MAC Media Access Control

    MAIN Main

    MAINT Maintenance

    MAX Maximum

    Mdev Mean Deviation

    MDCPU MODEM CPU

    MDI Medium Dependent Interface

    MDIX Medium Dependent Interface

    Crossover

    MD4 Message Digest Algorithm 4

    MD5 Message Digest Algorithm 5

    MEG Maintenance Entity Group

    MEM Memory

    MEP MEG End Point

  • 12

    ABBREVIATIONS-3

    MIN Minimum

    MIP Maintenance Intermediate Point

    MIX Mixer

    MJ Major

    MMC Multi Media Card

    MME Mobility Management Entity

    MMG Mismerge

    MN Minor

    MOD Modulator

    MODEM Modulator Demodulator

    MON Monitor

    MPX Multiplexer

    MS Multiplex Section

    MSC Mobile Switching Center

    MSDU MAC Service Data Unit

    MSP Multiplex Section Protection

    MTBF Mean Time Between Failure

    MTPC Manual Transmitter Power Control

    MUX Multiplexing Equipment

    N/A Not Applicable

    NBI Northbound Interface

    NE Network Element

    NML Network Management Layer

    NMS Network Management System

    OAM Operation Administration and

    Maintenance

    OCR Occur

    Octs Octets

    ODU Out-Door Unit

    OFS Out of Frame Second

    OMT Ortho-Mode Transducer

    OPEX Operational expenditure

    OPP Opposite

    OPR Operation

    OPT Optical

    OSPF Open Shortest Path First

    OSS Operation Support System

    OUT Output

    OW Oder Wire

    PA Power Amplifier

    PBR Pressurizable Type B, flange profile

    square Rectangular

    PCP Priority Code Point

    PDH Plesiochronous Digital Hierarchy

    PDU Protocol Data Unit

    PGM Program

    PHY Physical

    PIR Peak Information Rate

    PJE Pointer Justification Event

    PJE-N Pointer Justification Event Negative Stuff

    PJE-P Pointer Justification Event Positive Stuff

    PKG Package

    Pkts Packets

    PLM Payload Label Mismatch

    PMC PASOLINK Management Card

    PMON Performance Monitor

    PNMSj PASOLINK Network Management

    System Java Version

    PPI PDH PHY Interface

    ppm parts per million

    PPP Point-to-Point Protocol

    PPS Path Protection Switch

    PQ Priority Queuing

    PRM Parameter

    PROT Protection

    PS Power Supply

    PSC Protection Switching Counts

    PSD Protection Switching Duration

    PWR Power

    QAM Quadrature Amplitude Modulation

    QoS Quality of Service

    QPSK Quadrature Phase Shift Keying

    RCVR Recover

    REF Reference

    REM Remote

    RDI Remote Defect Indication

    RF Radio Frequency

    RFS Radio Frequency Systems

    RL Relay

    RMON Remote Network Monitoring

    RNC Radio Network Controller

  • 13

    ABBREVIATIONS-4

    RPL Ring Protection Link

    RS Regenerator Section

    RS-232 Recommended Standard 232

    RSL Received Signal Level

    RST Regenerator Section Termination

    RSTP Rapid Spanning Tree Protocol

    RX Receiver

    SC Service Channel

    SD Space Diversity

    SDH Synchronous Digital Hierarchy

    SEG Segment

    SEP Severely Errored Period

    SES Severely Errored Seconds

    SFP Small Form factor Pluggable

    SGMI Security Gateway Management

    Interface

    SMS Synchronous Multiplexing System

    SMU Source Measure Unit

    SNCP Sub-network Connection Protection

    SNMP Simple Network Management Protocol

    SP Strict Priority

    SPD Speed

    SRC Source MAC Address

    STAT Status

    STD Standard

    STM Synchronous Transport Module

    STP Spanning Tree Protocol

    SUB Substitute

    SW Switch

    S/W Software

    SWG Switch Group

    SYNC Synchronous

    TCI Tag Control Information

    TCN Threshold Crossing Notification

    TDM Time Division Multiplex

    TDMoP TDM over Packet

    TEMP Temperature

    TERM Terminal

    TF Transmit Fail

    TIM Trace Identifier Mismatch

    TLV Type Length Value

    TM Through Mode

    TNC Threaded Neil Councilman

    ToS Type of Service

    TPID Tag Protocol Identifier

    TQC Total Quality Control

    TTL Time To Live

    TU Tributary Unit

    TX Transmitter

    UAE UAS Event

    UAS Unavailable Seconds

    UL Upload

    UNEQ Unequipped

    UNEXP Unexpected

    Unicast DMR Unicast Delay Measurement Reply

    UNM Unexpected MEP

    UNP Unexpected Period

    USB Universal Serial Bus

    V Vertical

    V Volt

    VC Virtual Channel

    VLAN Virtual LAN

    VP Virtual Path

    VPN Virtual Private Network

    VSWR Voltage Standing Wave Ratio

    WDM Wavelength Division Multiplexing

    Web World Wide Web

    WG Waveguide

    WR Warning

    WRR Weighted Round Robin

    WS Wayside

    XCTRL XPIC Control

    X-DEM XPIC Demodulator

    XFP 10(X) Gigabit Small Form Factor

    Pluggable

    XIF XPIC IF

    XPD Cross Polarization Discrimination Ratio

    XPIC Cross Polarization Interference

    Canceller

    XREF XPIC Reference