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G&R

Service messages

The TCP handler accepts service messages for connect ($*$CN), disconnect

($*$DIS) and break ($*$BRK) from the communications product using the

handler. You can type them and transmit when using an emulator or

concentrator.

User applications using one of our communications APIs from the GlAPI

library must send the $*$CN, $*$DIS and $*$BRK messages themselves

when the Gline API is used, but they will be sent automatically by CMALLC,

CMDEAL and CMSERR when one of our CPI-C APIs is used.

The connect command

The only information required is the IP address in symbolic or numeric format

and the port number if it is not the standard Telnet port e.g.

$*$CN hostname:portnumber

Make connection to ‘hostname’.

Telnet, TN3270, TN5250 and TNVIP servers are all normally configured to use

the standard Telnet port, and the TN3270, TN5250 or TNVIP dialects are

arrived at by Telnet negotiation.

Note that you can set the default values for the connect commands with para-

meters in the configuration file, but that if no default is configured then the last

value used for this particular field becomes the default. So if you make an error

in one of the parameters you need not specify the others in your next connect.

If you set all connect parameters in the configuration file you can connect from

most of the Host Links products using a single key connect command, or by

transmitting $*$CN.

Gline Line Handlers and Configuration

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Eicon Networks CX1 Installationshandbuch Seite 54