$1 #2 Mode Settings Property Page icon

$1 #2 Mode Settings Property Page




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$1 #2 Mode Settings Property Page

1 You can accept the default title or you can type a new one in the Service Title box using up to 40 characters for the title.

2 Under Line Type, select the appropriate option:

{bmct bullet.bmp} Leasedleased_def1

{bmct bullet.bmp} Switched Server-Stored Numberserver_stored_def1

{bmct bullet.bmp} Switched: Modem-Stored Numbermodem_stored_def1

{bmct bullet.bmp} Switched: Manual Dialmanual_dial_def1

3 If you would like the line to use constant RTS,constant_rts_def1 select the Constant RTS check box. See Note About Constant RTS.note_constant_rts1

4 If you would like to make the link service available for distribution, select the Allow Link Service to be Distributed check box. For more information see Configuring a Distributed Link ServiceIDD_SNARLSCONFIG@snaremls.hlp.

$3 #4 Card Configuration Property Page

1 In the Adapter Type box, select the card you will be using from the pull-down menu.

2 If you are installing a MicroGate SDLC, you can change the Interrupt level using the Interrupt pull-down menu. If you are installing an IBM SDLC, the Interrupt level is hard-coded to three (3) and cannot be changed.

3 Click the down arrow in the ^ DMA Channel list box. Select a DMA channel from the available options, or none to disable use of DMA.

4 If you are installing a MicroGate SDLC, click the Dialer Settings tab and specify options. If you are installing an IBM SDLC, Click OK.

Notes


{bmct bullet.bmp}An SDLCSDLC_def1 link service enables SNA Server to communicate with host, peer, or downstream computers through full-duplex or half-duplex synchronous modems, or over switchedswitched_line_def1 or leasedleased_line_def1 telecommunications lines.

{bmct bullet.bmp}For specific information about using IBM SDLC and MPCA adapters and MicroGate MGx and DSA SDLC adapters, see the ^ Microsoft SNA Server Administration Guide.

{bmct bullet.bmp}You cannot use DMA Channel if you specify full-duplex.

{bmct bullet.bmp}If the adapter card is an IBM SDLC or MPCA, a MicroGate MGx or DSA, or any other SDLC card that does not contain a coprocessor, and you want to use a transmission speed greater than 9600 baud, select half-duplex and not full-duplex in SNA Server Manager. Adapters that lack a coprocessor generally cannot handle full-duplex transmission at high transmission speeds.
^

$5 #6 K7 Configuring Dialer Settings


In the Dialer Settings dialog box, specify options as follows:

COM Port

Select the number of the COM port; for example, for COM1, select 1.

If you are adding a COM port by adding this SDLC card, and you select a new number for that COM port, Setup responds by allowing you to access the appropriate dialog box for configuring the COM port within Windows NT.

The range is from None through 254. The default is None.

Baud Rate

Select the rate of transmission. The range includes relevant values from 75 through 115200. The default is 9600.

Incoming String

Type the string to be sent to the modem when an incoming call is detected. The default is AT&F&C1&S1&D3&Q1Q1S0=1. This string will be appropriate in most situations. For more information, see Command String Examples.command_string_examples>bigpop

Outgoing String

Type the string to be sent to the modem when an outgoing call is detected. The default is AT&F&C1&S1&D3&Q1Q1S0=0DT. This string will be appropriate in most situations. For more information, see ^ Command String Examples.command_string_examples>bigpop


#8 !9 {bmc b_close.mrb}!CloseWindow("bigpop")
Command String Examples


The elements in the command string AT&F&C1&S1&D3&Q1Q1S0=0DT have the following effects:

{bmc bullet.bmp} AT is the standard modem command prefix.

{bmc bullet.bmp} &F resets the modem to the factory defaults.

{bmc bullet.bmp} &C1 makes the modem track the status of the Carrier Detect (CD) line.

{bmc bullet.bmp} &S1 makes the modem raise the Data Set Ready (DSR) line after it has dialed.

{bmc bullet.bmp} &D3 makes the modem reset when the Data Transmit Ready (DTR) line drops.

{bmc bullet.bmp} &Q1 makes the modem come up in command mode and switch to synchronous mode when it has dialed. For some modems, this parameter is &M1.

{bmc bullet.bmp} Q1 turns off modem result codes.

{bmc bullet.bmp} S0=0 turns off auto-answer mode, so that the modem is set for outgoing calls.

{bmc bullet.bmp} DT dials the number following it, using tone dialing (DP indicates pulse dialing, used with older exchanges).


The elements in the command string AT&F&C1&S1&D3&Q1Q1S0=1 have the same effects as in the preceding list, except that S0=1 tells the modem to answer the phone after one ring.

#10 {bmc ic_sdlc.mrb} SDLC

Synchronous Data Link Control. IBM's implementation of a bit-oriented serial protocol with a standardized frame reader and block check sequence. SDLC applies to synchronous transmissions; it organizes information in rigidly structured units called frames.

#11 Leased

Choose this option for a dedicated telecommunications line. The line can be a point-to-point leased line or a multidrop leased line.

#12 Switched: Server-Stored Number

Choose this option if the modem can accept a phone number from SNA Server; that is, if the SDLC adapter to which the modem is attached has a built-in serial (COM) port (like the SDLC adapters from MicroGate).

#13 !14 {bmc b_close.mrb}!CloseWindow("bigpop")
Requirements for Using Server-Stored Numbers


In order to accept a phone number from SNA Server, your modem must be set up so that it will:

{bmct bullet.bmp} Accept dial commands in ASCII (eight data bits, no parity bit, one stop bit).

{bmct bullet.bmp} Not dial when the DTR signal is raised.

{bmct bullet.bmp} Set Clear to Send (CTS) and Data Set Ready (DSR) to ^ On when ready to accept dial commands.

{bmct bullet.bmp} Set DSR to Off after accepting a dial command.

{bmct bullet.bmp} Set DSR to On again when (and only when) the dialed connection is made.

{bmct bullet.bmp} Change to Synchronous mode after the dial-up has completed.

{bmct bullet.bmp} Change back to Dial-Command mode if Data Terminal Ready (DTR) is dropped and raised again.
^

#15 {bmc b_close.mrb}!CloseWindow("bigpop")
Routines Used with Server-Stored Numbers


When SNA Server is sending a phone number to a modem, it ignores modem responses and holds the modem interface signals Select Standby and DTR to Off.

The dialing attempt initiated by SNA Server is assumed to have failed if one of the following occurs:

{bmct bullet.bmp} DSR stays on after the dial string has been sent.

{bmct bullet.bmp} The connection time-out expires before DSR comes on to indicate that the call is connected.

When SNA Server creates a dial string to send to a modem, it uses the outgoing command string supplied in Setup as a base, and then appends the Dial Data (phone number) configured in SNA Server Manager, followed by a carriage-return line-feed sequence.

#16 Switched: Modem-Stored Number

Choose this option for a modem that stores a phone number. Make sure that the modem is configured to dial the number when the Data Terminal Ready (DTR) is raised, in conformance with the IEEE RS 232 Modem Specification for line 108.1.

#17 Switched: Manual Dial

Choose this option if you will dial the phone number. SNA Server will prompt you when it is time to dial the number.

#18 Constant RTS

Constant Request To Send. An option that causes the SDLC adapter to be in constant readiness to send data. This option is required if a line is to be used for full duplex. It cannot be used with multidrop.

If an SDLC adapter does not use Constant RTS, then before the adapter can send data, it must raise RTS and wait for the remote end to raise CTS (Clear To Send). In contrast, an adapter that uses Constant RTS holds RTS high, so CTS is always high and the wait is eliminated.

#19 Note About Constant RTS

For higher throughput, choose Constant RTS whenever you can. It is generally used on leased lines and is often available on modems for switched connections, as well.

However, do not select this option when configuring this link service for use by a multidrop connection. (Multidrop connections allow multiple SDLC connections to connect to the same physical wire.)

#20 Switched SDLC line

A standard dial-up telephone line used for synchronous data link control (SDLC) connections.

#21 Leased SDLC line

A telecommunications line committed solely to use by synchronous data link control (SDLC) connections. The line may be used for point-to-point connections or multidrop connections.

$22 #23 K24 Configuring Dialer Setup

In the MicroGate Dialer Setup dialog box, specify options as follows:

COM Port

Select the number of the COM port; for example, for COM1, select 1.

If you are adding a COM port by adding this SDLC card, and you select a new number for that COM port, Setup responds by allowing you to access the appropriate dialog box for configuring the COM port within Windows NT.

The range is from None through 254. The default is None.

Baud Rate

Select the rate of transmission. The range includes relevant values from 75 through 115200. The default is 9600.

Incoming String

Type the string to be sent to the modem when an incoming call is detected. The default is AT&F&C1&S1&D3&Q1Q1S0=1. This string will be appropriate in most situations. For more information, see Command String Examples.command_string_examples>bigpop

Outgoing String

Type the string to be sent to the modem when an outgoing call is detected. The default is AT&F&C1&S1&D3&Q1Q1S0=0DT. This string will be appropriate in most situations. For more information, see Command String Examples.command_string_examples>bigpop
^

#25 {bmc b_close.mrb}!CloseWindow("bigpop")
Command String Examples


The elements in the command string AT&F&C1&S1&D3&Q1Q1S0=0DT have the following effects:

{bmct bullet.bmp} AT is the standard modem command prefix.

{bmct bullet.bmp} &F resets the modem to the factory defaults.

{bmct bullet.bmp} &C1 makes the modem track the status of the Carrier Detect (CD) line.

{bmct bullet.bmp} &S1 makes the modem raise the Data Set Ready (DSR) line after it has dialed.

{bmct bullet.bmp} &D3 makes the modem reset when the Data Transmit Ready (DTR) line drops.

{bmct bullet.bmp} &Q1 makes the modem come up in command mode and switch to synchronous mode when it has dialed. For some modems, this parameter is &M1.

{bmct bullet.bmp} Q1 turns off modem result codes.

{bmct bullet.bmp} S0=0 turns off auto-answer mode, so that the modem is set for outgoing calls.

{bmct bullet.bmp} DT dials the number following it, using tone dialing (DP indicates pulse dialing, used with older exchanges).

The elements in the command string AT&F&C1&S1&D3&Q1Q1S0=1 have the same effects as in the preceding list, except that S0=1 tells the modem to answer the phone after one ring.

$26 #27 K28 Configuring an SDLC Link Service

1 In the Server view, select the SNA Server computer on which the link service will be installed by clicking on the corresponding server icon on the left side of the SNA Server Manager directory tree. .

2 From the ^ Insert menu, select Link Service,

-or-

select the Link Services folder under the Server icon and click the Link Services icon on the right side of the SNA Server Manager directory tree.

The server must be stopped (inactive) to insert a link service.

3 Select the link service to add from the list in the ^ Link Service Configuration dialog box.

4 Click Add.

If the link service cannot be installed or configured from the SNA Server Manager, a popup message will appear instructing you to run the link service configuration utility. See To install or configure a link service on a local computer using the link service configuration utility (Linkset.exe)snals_note_linkset@snaadmin.hlp.

5 In the property pages that appear on the desktop, configure the link service. See the Help file for how to configure each type of link service.

6 Click OK when configuration is complete.

7 Repeat steps 1 through 6 to add and configure other link services.

8 After adding all link services, click ^ Done to return to SNA Server Manager.

Notes


{bmct bullet.bmp} Before installing and configuring a link service using SNA Server Manager, you must stop the server. If the server is active, then the Link Service option on the Insert menu is unavailable.

{bmct bullet.bmp} Stopping SNA Server and all related services will immediately disconnect all users and terminate all sessions. Schedule service additions when they will least affect the users.

{bmct bullet.bmp} Do not attempt to remove SNA Server services or link services through the Windows NT Network Control Panel.

{bmct bullet.bmp} An SDLCSDLC_def1 link service enables SNA Server to communicate with host, peer, or downstream computers through full-duplex or half-duplex synchronous modems, or over switchedswitched_line_def1 or leasedleased_line_def1 telecommunications lines.

{bmct bullet.bmp} For specific information about using IBM SDLC and MPCA adapters and MicroGate MGx and DSA SDLC adapters, see the ^ Microsoft SNA Server Administration Guide.

{bmct bullet.bmp} If the adapter card is an IBM SDLC or MPCA, a MicroGate MGx or DSA, or any other SDLC card that does not contain a coprocessor, and you want to use a transmission speed greater than 9600 baud, select half-duplex and not full-duplex in SNA Server Manager. Adapters that lack a coprocessor generally cannot handle full-duplex transmission at high transmission speeds.

{bmct bullet.bmp} If you would like SNA Server to check the adapter settings on a remote machine, click ^ Detect Adapter Settings on the Card Configuration property page.



1$ Mode Settings Property Page

2# IDH_MODE_SETTINGS

3$ Card Configuration Property Page

4# IDH_CARD_CONFIG_PROPERTIES_PAGE

5$ Configuring Dialer Setup

6# IDH_DIALER

7K dialer setup;

8# command_string_examples

9! AddAccelerator(0x4C, 0, "CloseWindow(`bigpop')")

10# SDLC_def1

11# leased_def1

12# server_stored_def1

13# reqmt_server_stored1

14! AddAccelerator(0x4C, 0, "CloseWindow(`bigpop')")

15# routines_used1

16# modem_stored_def1

17# manual_dial_def1

18# constant_rts_def1

19# note_constant_rts1

20# switched_line_def1

21# leased_line_def1

22$ Configuring Dialer Setup

23# IDD_DIALER

24K MicroGate dialer Setup;dialer setup;COM port;baud rate;incoming string;outgoing string;command string

25# command_string_examples

26$ Configuring an SDLC Link Service

27# IDD_IBMSDLCLSCONFIG

28K leased lines;switched lines;constant RTS;modems;SDLC connection;SDLC link services;link services;linkset;adapters;cards;configuring, link services;SNA Server Manager, link services;Synchronous Data Link Control;protocols;server-stored phone numbers;manual dial;modem-stored phone numbers;phone numbers;SNA Server link service configuration utility

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