RS-232-MIB DEFINITIONS ::= BEGIN

IMPORTS

    MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,

    Counter32, Integer32

        FROM SNMPv2-SMI

    InterfaceIndex

        FROM IF-MIB

    transmission

        FROM RFC1213-MIB

    MODULE-COMPLIANCE, OBJECT-GROUP

        FROM SNMPv2-CONF;

rs232 MODULE-IDENTITY

    LAST-UPDATED "9405261700Z"

    ORGANIZATION "IETF Character MIB Working Group"

    CONTACT-INFO

            "        Bob Stewart

             Postal: Xyplex, Inc.

                     295 Foster Street

                     Littleton, MA 01460

                Tel: 508-952-4816

                Fax: 508-952-4887

             E-mail: rlstewart@eng.xyplex.com"

    DESCRIPTION

            "The MIB module for RS-232-like hardware devices."

    ::= { transmission 33 }

-- Generic RS-232-like information

rs232Number OBJECT-TYPE

    SYNTAX Integer32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The number of ports (regardless of their current

        state) in the RS-232-like general port table."

    ::= { rs232 1 }

-- RS-232-like General Port Table

rs232PortTable OBJECT-TYPE

    SYNTAX SEQUENCE OF Rs232PortEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "A list of port entries.  The number of entries is

        given by the value of rs232Number."

    ::= { rs232 2 }

rs232PortEntry OBJECT-TYPE

    SYNTAX Rs232PortEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "Status and parameter values for a port."

    INDEX { rs232PortIndex }

    ::= { rs232PortTable 1 }

Rs232PortEntry ::=

    SEQUENCE {

        rs232PortIndex

            InterfaceIndex,

        rs232PortType

            INTEGER,

        rs232PortInSigNumber

            Integer32,

        rs232PortOutSigNumber

            Integer32,

        rs232PortInSpeed

            Integer32,

        rs232PortOutSpeed

            Integer32,

        rs232PortInFlowType

            INTEGER,

        rs232PortOutFlowType

            INTEGER

    }

rs232PortIndex OBJECT-TYPE

    SYNTAX InterfaceIndex

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The value of ifIndex for the port.  By convention

        and if possible, hardware port numbers map directly

        to external connectors.  The value for each port must

        remain constant at least from one re-initialization

        of the network management agent to the next."

    ::= { rs232PortEntry 1 }

rs232PortType OBJECT-TYPE

    SYNTAX INTEGER { other(1), rs232(2), rs422(3),

                     rs423(4), v35(5), x21(6) }

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The port's hardware type."

    ::= { rs232PortEntry 2 }

rs232PortInSigNumber OBJECT-TYPE

    SYNTAX Integer32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The number of input signals for the port in the

        input signal table (rs232PortInSigTable).  The table

        contains entries only for those signals the software

        can detect and that are useful to observe."

    ::= { rs232PortEntry 3 }

rs232PortOutSigNumber OBJECT-TYPE

    SYNTAX Integer32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The number of output signals for the port in the

        output signal table (rs232PortOutSigTable).  The

        table contains entries only for those signals the

        software can assert and that are useful to observe."

    ::= { rs232PortEntry 4 }

rs232PortInSpeed OBJECT-TYPE

    SYNTAX Integer32

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The port's input speed in bits per second.  Note that

        non-standard values, such as 9612, are probably not allowed

        on most implementations."

    ::= { rs232PortEntry 5 }

rs232PortOutSpeed OBJECT-TYPE

    SYNTAX Integer32

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The port's output speed in bits per second.  Note that

        non-standard values, such as 9612, are probably not allowed

        on most implementations."

    ::= { rs232PortEntry 6 }

rs232PortInFlowType OBJECT-TYPE

    SYNTAX INTEGER { none(1), ctsRts(2), dsrDtr(3) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The port's type of input flow control.  'none'

        indicates no flow control at this level.

        'ctsRts' and 'dsrDtr' indicate use of the indicated

        hardware signals."

    ::= { rs232PortEntry 7 }

rs232PortOutFlowType OBJECT-TYPE

    SYNTAX INTEGER { none(1), ctsRts(2), dsrDtr(3) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The port's type of output flow control.  'none'

        indicates no flow control at this level.

        'ctsRts' and 'dsrDtr' indicate use of the indicated

        hardware signals."

    ::= { rs232PortEntry 8 }

-- RS-232-like Asynchronous Port Table

rs232AsyncPortTable OBJECT-TYPE

    SYNTAX SEQUENCE OF Rs232AsyncPortEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "A list of asynchronous port entries.  Entries need

        not exist for synchronous ports."

    ::= { rs232 3 }

rs232AsyncPortEntry OBJECT-TYPE

    SYNTAX Rs232AsyncPortEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "Status and parameter values for an asynchronous

        port."

    INDEX { rs232AsyncPortIndex }

    ::= { rs232AsyncPortTable 1 }

Rs232AsyncPortEntry ::=

    SEQUENCE {

        rs232AsyncPortIndex

            InterfaceIndex,

        rs232AsyncPortBits

            INTEGER,

        rs232AsyncPortStopBits

            INTEGER,

        rs232AsyncPortParity

            INTEGER,

        rs232AsyncPortAutobaud

            INTEGER,

        rs232AsyncPortParityErrs

            Counter32,

        rs232AsyncPortFramingErrs

            Counter32,

        rs232AsyncPortOverrunErrs

            Counter32

    }

rs232AsyncPortIndex OBJECT-TYPE

    SYNTAX InterfaceIndex

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "A unique value for each port.  Its value is the

        same as rs232PortIndex for the port."

    ::= { rs232AsyncPortEntry 1 }

rs232AsyncPortBits OBJECT-TYPE

    SYNTAX INTEGER (5..8)

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The port's number of bits in a character."

    ::= { rs232AsyncPortEntry 2 }

rs232AsyncPortStopBits OBJECT-TYPE

    SYNTAX INTEGER { one(1), two(2),

                     oneAndHalf(3), dynamic(4) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The port's number of stop bits."

    ::= { rs232AsyncPortEntry 3 }

rs232AsyncPortParity OBJECT-TYPE

    SYNTAX INTEGER { none(1), odd(2), even(3),

                     mark(4), space(5) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The port's sense of a character parity bit."

    ::= { rs232AsyncPortEntry 4 }

rs232AsyncPortAutobaud OBJECT-TYPE

    SYNTAX INTEGER { enabled(1), disabled(2) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "A control for the port's ability to automatically

        sense input speed.

        When rs232PortAutoBaud is 'enabled', a port may

        autobaud to values different from the set values for

        speed, parity, and character size.  As a result a

        network management system may temporarily observe

        values different from what was previously set."

    ::= { rs232AsyncPortEntry 5 }

rs232AsyncPortParityErrs OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Total number of characters with a parity error,

        input from the port since system re-initialization

        and while the port state was 'up' or 'test'."

    ::= { rs232AsyncPortEntry 6 }

rs232AsyncPortFramingErrs OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Total number of characters with a framing error,

        input from the port since system re-initialization

        and while the port state was 'up' or 'test'."

    ::= { rs232AsyncPortEntry 7 }

rs232AsyncPortOverrunErrs OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Total number of characters with an overrun error,

        input from the port since system re-initialization

        and while the port state was 'up' or 'test'."

    ::= { rs232AsyncPortEntry 8 }

-- RS-232-like Synchronous Port Table

rs232SyncPortTable OBJECT-TYPE

    SYNTAX SEQUENCE OF Rs232SyncPortEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "A list of asynchronous port entries.  Entries need

        not exist for synchronous ports."

    ::= { rs232 4 }

rs232SyncPortEntry OBJECT-TYPE

    SYNTAX Rs232SyncPortEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "Status and parameter values for a synchronous

        port."

    INDEX { rs232SyncPortIndex }

    ::= { rs232SyncPortTable 1 }

Rs232SyncPortEntry ::=

    SEQUENCE {

        rs232SyncPortIndex

            InterfaceIndex,

        rs232SyncPortClockSource

            INTEGER,

        rs232SyncPortFrameCheckErrs

            Counter32,

        rs232SyncPortTransmitUnderrunErrs

            Counter32,

        rs232SyncPortReceiveOverrunErrs

            Counter32,

        rs232SyncPortInterruptedFrames

            Counter32,

        rs232SyncPortAbortedFrames

            Counter32,

        rs232SyncPortRole

            INTEGER,

        rs232SyncPortEncoding

            INTEGER,

        rs232SyncPortRTSControl

            INTEGER,

        rs232SyncPortRTSCTSDelay

            Integer32,

        rs232SyncPortMode

            INTEGER,

        rs232SyncPortIdlePattern

            INTEGER,

        rs232SyncPortMinFlags

            Integer32

    }

rs232SyncPortIndex OBJECT-TYPE

    SYNTAX InterfaceIndex

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "A unique value for each port.  Its value is the

        same as rs232PortIndex for the port."

    ::= { rs232SyncPortEntry 1 }

rs232SyncPortClockSource OBJECT-TYPE

    SYNTAX INTEGER { internal(1), external(2), split(3) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "Source of the port's bit rate clock. 'split' means

        the tranmit clock is internal and the receive clock

        is external."

    ::= { rs232SyncPortEntry 2 }

rs232SyncPortFrameCheckErrs OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Total number of frames with an invalid frame check

        sequence, input from the port since system

        re-initialization and while the port state was 'up'

        or 'test'."

    ::= { rs232SyncPortEntry 3 }

rs232SyncPortTransmitUnderrunErrs OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Total number of frames that failed to be

        transmitted on the port since system

        re-initialization and while the port state was 'up'

        or 'test' because data was not available to the

        transmitter in time."

    ::= { rs232SyncPortEntry 4 }

rs232SyncPortReceiveOverrunErrs OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Total number of frames that failed to be received

        on the port since system re-initialization and while

        the port state was 'up' or 'test' because the

        receiver did not accept the data in time."

    ::= { rs232SyncPortEntry 5 }

rs232SyncPortInterruptedFrames OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Total number of frames that failed to be received

        or transmitted on the port due to loss of modem

        signals since system re-initialization and while the

        port state was 'up' or 'test'."

    ::= { rs232SyncPortEntry 6 }

rs232SyncPortAbortedFrames OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Number of frames aborted on the port due to

        receiving an abort sequence since system

        re-initialization and while the port state was 'up'

        or 'test'."

    ::= { rs232SyncPortEntry 7 }

rs232SyncPortRole OBJECT-TYPE

    SYNTAX INTEGER  { dte(1), dce(2) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The role the device is playing that is using this port.

           dte    means the device is performing the role of

                  data terminal equipment

           dce    means the device is performing the role of

                  data circuit-terminating equipment."

    DEFVAL { dce }

    ::= { rs232SyncPortEntry 8 }

rs232SyncPortEncoding OBJECT-TYPE

    SYNTAX INTEGER  { nrz(1), nrzi(2) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The bit stream encoding technique that is in effect

         for this port.

           nrz    for Non-Return to Zero encoding

           nrzi   for Non-Return to Zero Inverted encoding."

    DEFVAL { nrz }

    ::= { rs232SyncPortEntry 9 }

rs232SyncPortRTSControl OBJECT-TYPE

    SYNTAX INTEGER  { controlled(1), constant(2) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The method used to control the Request To Send (RTS)

         signal.

           controlled  when the DTE is asserts RTS each time

                       data needs to be transmitted and drops

                       RTS at some point after data

                       transmission begins.

                       If rs232SyncPortRole is 'dte', the

                       RTS is an output signal. The device

                       will issue a RTS and wait for a CTS

                       from the DCE before starting to

                       transmit.

                       If rs232SyncPortRole is 'dce', the

                       RTS is an input signal. The device

                       will issue a CTS only after having

                       received RTS and waiting the

                       rs232SyncPortRTSCTSDelay interval.

           constant    when the DTE constantly asserts RTS."

    DEFVAL { constant }

    ::= { rs232SyncPortEntry 10 }

rs232SyncPortRTSCTSDelay OBJECT-TYPE

    SYNTAX Integer32

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The interval (in milliseconds) that the DCE must wait

         after it sees RTS asserted before asserting CTS.  This

         object exists in support of older synchronous devices

         that cannot recognize CTS within a certain interval

         after it asserts RTS."

    DEFVAL { 0 }

    ::= { rs232SyncPortEntry 11 }

rs232SyncPortMode OBJECT-TYPE

    SYNTAX INTEGER  { fdx(1), hdx(2), simplex-receive(3),

                      simplex-send(4) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The mode of operation of the port with respect to the

         direction and simultaneity of data transfer.

           fdx              when frames on the data link can be

                            transmitted and received at the same

                            time

           hdx              when frames can either be received

                            from the data link or transmitted

                            onto the data link but not at the

                            same time.

           simplex-receive  when frames can only be received on

                            this data link.

           simplex-send     when frames can only be sent on this

                            data link."

    DEFVAL { fdx }

    ::= { rs232SyncPortEntry 12 }

rs232SyncPortIdlePattern OBJECT-TYPE

    SYNTAX INTEGER  { mark(1), space(2) }

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The bit pattern used to indicate an idle line."

    DEFVAL { space }

    ::= { rs232SyncPortEntry 13 }

rs232SyncPortMinFlags OBJECT-TYPE

    SYNTAX Integer32

    MAX-ACCESS read-write

    STATUS current

    DESCRIPTION

        "The minimum number of flag patterns this port needs in

         order to recognize the end of one frame and the start

         of the next.  Plausible values are 1 and 2."

    DEFVAL { 2 }

    ::= { rs232SyncPortEntry 14 }

-- Input Signal Table

rs232InSigTable OBJECT-TYPE

    SYNTAX SEQUENCE OF Rs232InSigEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "A list of port input control signal entries

        implemented and visible to the software on the port,

        and useful to monitor."

    ::= { rs232 5 }

rs232InSigEntry OBJECT-TYPE

    SYNTAX Rs232InSigEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "Input control signal status for a hardware port."

    INDEX { rs232InSigPortIndex, rs232InSigName }

    ::= { rs232InSigTable 1 }

Rs232InSigEntry ::=

    SEQUENCE {

        rs232InSigPortIndex

            InterfaceIndex,

        rs232InSigName

            INTEGER,

        rs232InSigState

            INTEGER,

        rs232InSigChanges

            Counter32

    }

rs232InSigPortIndex OBJECT-TYPE

    SYNTAX InterfaceIndex

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The value of rs232PortIndex for the port to which

        this entry belongs."

    ::= { rs232InSigEntry 1 }

rs232InSigName OBJECT-TYPE

    SYNTAX INTEGER { rts(1), cts(2), dsr(3), dtr(4), ri(5),

                     dcd(6), sq(7), srs(8), srts(9),

                     scts(10), sdcd(11) }

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Identification of a hardware signal, as follows:

            rts    Request to Send

            cts    Clear to Send

            dsr    Data Set Ready

            dtr    Data Terminal Ready

            ri     Ring Indicator

            dcd    Received Line Signal Detector

            sq     Signal Quality Detector

            srs    Data Signaling Rate Selector

            srts   Secondary Request to Send

            scts   Secondary Clear to Send

            sdcd   Secondary Received Line Signal Detector

        "

    REFERENCE

        "EIA Standard RS-232-C, August 1969."

    ::= { rs232InSigEntry 2 }

rs232InSigState OBJECT-TYPE

    SYNTAX INTEGER { none(1), on(2), off(3) }

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The current signal state."

    ::= { rs232InSigEntry 3 }

rs232InSigChanges OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The number of times the signal has changed from

        'on' to 'off' or from 'off' to 'on'."

    ::= { rs232InSigEntry 4 }

-- Output Signal Table

rs232OutSigTable OBJECT-TYPE

    SYNTAX SEQUENCE OF Rs232OutSigEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "A list of port output control signal entries

        implemented and visible to the software on the port,

        and useful to monitor."

    ::= { rs232 6 }

rs232OutSigEntry OBJECT-TYPE

    SYNTAX Rs232OutSigEntry

    MAX-ACCESS not-accessible

    STATUS current

    DESCRIPTION

        "Output control signal status for a hardware port."

    INDEX { rs232OutSigPortIndex, rs232OutSigName }

    ::= { rs232OutSigTable 1 }

Rs232OutSigEntry ::=

    SEQUENCE {

        rs232OutSigPortIndex

            InterfaceIndex,

        rs232OutSigName

            INTEGER,

        rs232OutSigState

            INTEGER,

        rs232OutSigChanges

            Counter32

    }

rs232OutSigPortIndex OBJECT-TYPE

    SYNTAX InterfaceIndex

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The value of rs232PortIndex for the port to which

        this entry belongs."

    ::= { rs232OutSigEntry 1 }

rs232OutSigName OBJECT-TYPE

    SYNTAX INTEGER { rts(1), cts(2), dsr(3), dtr(4), ri(5),

                     dcd(6), sq(7), srs(8), srts(9),

                     scts(10), sdcd(11) }

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "Identification of a hardware signal, as follows:

            rts    Request to Send

            cts    Clear to Send

            dsr    Data Set Ready

            dtr    Data Terminal Ready

            ri     Ring Indicator

            dcd    Received Line Signal Detector

            sq     Signal Quality Detector

            srs    Data Signaling Rate Selector

            srts   Secondary Request to Send

            scts   Secondary Clear to Send

            sdcd   Secondary Received Line Signal Detector

        "

    REFERENCE

        "EIA Standard RS-232-C, August 1969."

    ::= { rs232OutSigEntry 2 }

rs232OutSigState OBJECT-TYPE

    SYNTAX INTEGER { none(1), on(2), off(3) }

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The current signal state."

    ::= { rs232OutSigEntry 3 }

rs232OutSigChanges OBJECT-TYPE

    SYNTAX Counter32

    MAX-ACCESS read-only

    STATUS current

    DESCRIPTION

        "The number of times the signal has changed from

        'on' to 'off' or from 'off' to 'on'."

    ::= { rs232OutSigEntry 4 }

-- conformance information

rs232Conformance OBJECT IDENTIFIER ::= { rs232 7 }

rs232Groups      OBJECT IDENTIFIER ::= { rs232Conformance 1 }

rs232Compliances OBJECT IDENTIFIER ::= { rs232Conformance 2 }

-- compliance statements

rs232Compliance MODULE-COMPLIANCE

    STATUS  current

    DESCRIPTION

            "The compliance statement for SNMPv2 entities

            which have RS-232-like hardware interfaces."

    MODULE  -- this module

        MANDATORY-GROUPS { rs232Group }

        GROUP   rs232AsyncGroup

        DESCRIPTION

            "The Asynch group is mandatory only for those

             SNMPv2 entities which have asynchronous

             interfaces Rs-232-like."

        GROUP   rs232SyncGroup

        DESCRIPTION

            "The Synch group is mandatory only for those

             SNMPv2 entities which have synchronous

             interfaces Rs-232-like."

    ::= { rs232Compliances 1 }

-- units of conformance

rs232Group    OBJECT-GROUP

    OBJECTS { rs232Number, rs232PortIndex, rs232PortType,

              rs232PortInSigNumber, rs232PortOutSigNumber,

              rs232PortInSpeed, rs232PortOutSpeed,

              rs232PortInFlowType, rs232PortOutFlowType,

              rs232InSigPortIndex, rs232InSigName,

              rs232InSigState, rs232InSigChanges,

              rs232OutSigPortIndex, rs232OutSigName,

              rs232OutSigState, rs232OutSigChanges }

    STATUS  current

    DESCRIPTION

            "A collection of objects providing information

             applicable to all RS-232-like interfaces."

    ::= { rs232Groups 1 }

rs232AsyncGroup OBJECT-GROUP

    OBJECTS { rs232AsyncPortIndex, rs232AsyncPortBits,

              rs232AsyncPortStopBits, rs232AsyncPortParity,

              rs232AsyncPortAutobaud, rs232AsyncPortParityErrs,

              rs232AsyncPortFramingErrs, rs232AsyncPortOverrunErrs }

    STATUS  current

    DESCRIPTION

            "A collection of objects providing information

             applicable to asynchronous RS-232-like interfaces."

    ::= { rs232Groups 2 }

rs232SyncGroup OBJECT-GROUP

    OBJECTS { rs232SyncPortIndex, rs232SyncPortClockSource,

              rs232SyncPortFrameCheckErrs,

              rs232SyncPortTransmitUnderrunErrs,

              rs232SyncPortReceiveOverrunErrs,

              rs232SyncPortInterruptedFrames,

              rs232SyncPortAbortedFrames }

    STATUS  current

    DESCRIPTION

            "A collection of objects providing information

             applicable to synchronous RS-232-like interfaces."

    ::= { rs232Groups 3 }

rs232SyncSDLCGroup OBJECT-GROUP

    OBJECTS { rs232SyncPortRole,

              rs232SyncPortEncoding,

              rs232SyncPortRTSControl,

              rs232SyncPortRTSCTSDelay,

              rs232SyncPortMode,

              rs232SyncPortIdlePattern,

              rs232SyncPortMinFlags }

    STATUS  current

    DESCRIPTION

            "A collection of objects providing information

             applicable to synchronous RS-232-like interfaces

             running SDLC."

    ::= { rs232Groups 4 }

END