NET$MGMT_HELP.HLB  —  Modem  line  character
    ALTERNATE SPEED
       Default: 0

       Alternate low speed, in bits per second, to operate the line. You can
       modify this characteristic only when the entity is disabled. This
       characteristic is supported only when the characteristic communications
       mode is asynchronous, the characteristic modem control is full,
       the characteristic modem options includes rateselect, the
       characteristic clock is internal, and when the alternate line speed
       is needed.

    CALL ACCEPT TIMER
       Default: 0

       Minimum time, in milliseconds, between the assertion of data set ready
       and accepting a call by asserting request to send. This attribute is
       maintained only if the characteristic modem control is set to none.

    CARRIER LOSS TIMER
       Default: 15000

       Maximum time, in milliseconds, that the carrier detect signal can be
       absent before the loss of carrier event is generated. This attribute
       is not supported if the characteristic modem control is set to none.

    CLOCK

       Source of the transmit and receive clocks.

          EXTERNAL  - The modem provides the clock.

          INTERNAL  - The communications device provides the clock.

          REFLECTED - The DTE transmit clock is a reflection of the DCE
                      transmit clock. This minimizes the clock to data skew that
                      the DCE encounters when high line speeds are used.

       The default value depends on the setting of the characteristic
       communications mode. If communications mode is asynchronous, the default
       value of this characteristic is internal. Otherwise, the default value
       is external.

       The value of this attribute has no effect when the communications line is
       in loopback mode. In this case, the type of loopback determines the type
       of clock. This characteristic can only be modified when the entity is
       disabled.

    COMMUNICATIONS MODE
       Default: Synchronous                Value:  Asynchronous or synchronous

       Communications method to be used on the line. The value of this
       characteristic is a copy of the communications mode argument specified
       when the entity is created. You cannot modify this characteristic.

    COMMUNICATIONS PORT
       Default: None

       Name of the communications port. The value of this characteristic is a
       copy of the communications port argument specified when the entity is
       created.

    DUPLEX
       Default: Full                       Value: Full or half

       Indicates whether the line is full- or half-duplex. The value of
       this characteristic is a copy of the duplex argument specified when the
       entity is created.

    ENCODING
       Default: Normal                     Value: Normal or nrzi

       Encoding technique used on the line. This characteristic can only be
       modified when the entity is disabled.

    MAXIMUM DISABLE TRANSMIT TIMER
       Default: 500                         Value: 0--60000

       Maximum time, in milliseconds, that clear to send can remain asserted
       before the line is disconnected after request to send is deasserted.
       This attribute is not supported if the characteristic modem control is
       set to none.

    MAXIMUM DSR DEASSERTION TIMER
       Default: 5000                        Value: 0--60000

       Maximum time, in milliseconds, the entity will wait for data set ready
       to be deasserted after it has deasserted data terminal ready. If this
       timer expires, the entity assumes it can assert data terminal ready once
       again.  This attribute is not supported if the characteristic modem
       control is set to none.

    MAXIMUM ENABLE TRANSMIT TIMER
       Default: 2000                         Value: 1--5000

       Maximum time, in milliseconds, between the assertion of the request to
       send signal and receiving the assertion of the clear to send signal. This
       attribute is not supported if the characteristic modem control is set to
       none.

    MINIMUM DTR DEASSERTION TIMER
       Default: 1000                         Value: 0--60000

       Minimum time, in milliseconds, that the DTE will deassert data terminal
       ready during a disconnection. This attribute is not supported if the
       characteristic modem control is set to none.

    MODEM CONTROL
       Default: Full                          Value: Full or none

       Indicates whether the interchange circuits are to be monitored and used.
       The value none means that only the data leads are monitored.

       The value full must be used when the value of the characteristic
       duplex is half.  This characteristic is supported only if the
       characteristic connection type is switched.

    MODEM OPTIONS
       Default: No options                      Value: Set of options

       Set of values that determine the capabilities of the modem.

            RATE SELECT -  The modem is capable of data rate selection.

    PROFILE
       Default: None

       Name of the local profile to be used with the line. This profile is used
       to restrict the range of various line attributes, and to change the
       defaults for those attributes.  The value of this characteristic is a
       copy of the profile argument specified when the entity is created.

    RATE SELECT
       Default: High                               Value: High or low

       Specifies which of the line rates is to be used if none is specified
       when a call is set up.

           HIGH    - The value of the speed characteristic is used.

           LOW     - The value of the alternate speed characteristic is used.

       This characteristic is supported only if the characteristic modem
       control is full, and if the characteristic modem options includes
       rateselect.

    SPEED
       Default: 0

       High speed, in bits per second, to be used on the line. This value is
       always used on asynchronous links. It is used on synchronous links only
       in the following circumstances:

       When the value of the clock characteristic is internal.
       When a null modem cable is detected.
       When using a loopback mode that uses internal clocking.

    SUCCESSFUL CALL INDICATION TIMER
       Default: 30

       Maximum time, in seconds, that the entity will wait for indication of a
       successful call before disconnecting the line. This attribute is not
       supported if the characteristic modem control is set to none.

    SUPPRESS TEST INDICATOR
       Default: False                             Value: True or false

       Specifies whether the test mode signal is to be monitored.  If the value
       is false, a change in the circuit will be monitored and will cause a
       Test Indication event to be generated.

       You should set this characteristic to true in cases where the
       transitions of this signal are not produced by entering test mode, so
       that this signal should be ignored.

    TRANSMIT HOLDOFF TIMER
       Default: 0

       Necessary delay, in milliseconds, between the transmitter being disabled
       and then reenabled. The value 0 means that the request to send signal
       can be asserted as soon as the client requests it.

       This attribute is not supported if the characteristic modem control is
       set to none.
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