set [node node-id] modem connect line line-name ... Modifies the attributes for an modem connect line entity, which is associated with a physical circuit on the node. The modifiable attributes and their data types [in brackets] are: alternate speed [bits-per-second] call accept timer [milliseconds] carrier loss timer [milliseconds] clock [external, internal, or reflected] encoding [normal or nrzi] initial hold timer [seconds] (Tru64 UNIX) maximum call setup timer [seconds] maximum disable transmit timer [milliseconds] maximum dsr deassertion timer [milliseconds] maximum enable transmit timer [milliseconds] minimum dtr deassertion timer [milliseconds] modem control [full or none] modem options [dialout, direct or rate select] modem protocol format [type] (Tru64 UNIX) modem protocol type [prot-type] (Tru64 UNIX) rate select [high or low] speed [bits-per-second] successful call indication timer [seconds] suppress test indicator [boolean] transmit holdoff timer [milliseconds]
1 – 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.
2 – call_accept_timer
Default: 500 Minimum time, in milliseconds, between the assertion of data set ready and accepting a call by asserting request to send. This characteristic is not supported if the characteristic modem control is none.
3 – 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 characteristic is not supported if the characteristic modem control is none.
4 – 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. You can modify this characteristic only when the entity is disabled.
5 – encoding
Default: normal Value: normal or nrzi Encoding technique used on the line. You can modify this characteristic only when the entity is disabled.
6 – initial_hold_timer
Default: 10 Value: 0-300 Maximum time, in seconds, within which the control service client must accept an incoming call. This characteristic is supported only when the characteristic connection type is switched.
7 – maximum_call_setup_timer
Default: 60 Value: 1-300 Maximum time, in seconds, that can pass before an outgoing call is connected. This characteristic is supported only when the characteristic connection type is switched.
8 – maximum_disable_transmit_timer
Default: 500 Maximum time, in milliseconds, that clear to send can remain asserted before the line is disconnected after Request to Send is deasserted. This characteristic is not supported if the characteristic modem control is none.
9 – maximum_dsr_deassertion_timer
Default: 5000 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 characteristic is not supported if the characteristic modem control is none.
10 – 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 characteristic is not supported if the characteristic modem control is none.
11 – minimum_dtr_deassertion_timer
Default: 1000 Minimum timer, in milliseconds, that the DTE will deassert data terminal ready during a disconnection. This characteristic is not supported if the characteristic modem control is none.
12 – 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. You can modify this this characteristic only when the entity is disabled. This characteristic is supported only if the characteristic connection type is non-switched.
13 – modem_options
Default: No options Value: Set of options Set of values that determine the capabilities of the modem. The value dialout is supported only if the value of communications type is switched. You can modify this characteristic only when the entity is disabled. dialout The modem can dial the remote modem. direct The modem is directly connected to the remote modem through a non-switched line. rate select The modem is capable of data rate selection. The value direct must be accompanied with dialout and used only when the modem protocol type supports direct dial. Format the values to specify one or any combination of modem options.
14 – modem protocol format (Tru64 UNIX)
Format to use for V.25bis protocol messages. You can modify this characteristic only when the entity is disabled. This characteristic is supported only when the characteristic connection type is non-switched. This characteristic applies only when the characteristic modem protocol type is v25bis or dmcl. asynchronous Use the asynchronous format. hdlc Use the HDLC format. synchronous Use the synchronous format. The default value depends on the value of the characteristic communications mode. If communications mode is asynchronous, the default value of this characteristic is also asynchronous. If the value of communications mode is synchronous, the default value of this characteristic is hdlc.
15 – modem protocol type (Tru64 UNIX)
Default: V25bis Value: See following description. Protocol that the modem uses to select modem options and to set line control parameters. You can modify this characteristic only when the entity is disabled. This characteristic is supported only when the characteristic connection type is non-switched. at A set of automatic calling procedures used in the Hayes Smartmodem 2400. dmcl The Digital Modem Control Language, based on V.25bis. v25 A set of automatic calling and answering procedures defined by CCITT. These procedures use the 200-series circuits defined in the CCITT recommendation V.24. The V.235 procedures are also known as parallel automatic calling procedures. v25bis A set of automatic calling and answering procedures defined by CCITT. These procedures use the 100-series circuits defined in the CCITT recommendation V.24. The V.25bis procedures are also known as serial automatic calling procedures.
16 – profile
Name of the local profile to be used with the line. The value of this characteristic is a copy of the profile argument specified when the entity is created. You cannot modify this characteristic.
17 – rate_select
Default: High Value: High or Low Which of the line rates is to be used if none is specified when a call is setup. high indicates that the value of the speed characteristic be used, and low indicates that the value of the alternate speed characteristic be used. This characteristic is supported only if the characteristic modem control is full, and if the characteristic modem options includes rateselect.
18 – 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: o When the value of the clock characteristic is internal o When a null modem cable is detected o When using a loopback mode that uses internal clocking You can modify this characteristic only when the entity is disabled.
19 – 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 characteristic is supported only when the characteristic modem control is none.
20 – suppress_test_indicator
Default: False Value: True or false Indicates whether the Test Mode signal is to be monitored. Use the value false if the DCE deals with the Test Mode signal. Setting this characteristic to true means that the interchange circuit status attribute test mode will also be displayed as Unknown.
21 – transmit_holdoff_timer
Default: 0 Necessary delay, in milliseconds, between the transmitter being disabled and being enabled again. The value 0 means that the request to send signal can be asserted as soon as the client requests it. This characteristic is not supported if the characteristic modem control is none.