Natarajan "Block mode" is terminology I associate with asynchronous ASCII displays rather than 3270. You may have been familiar with this terminology before you got to know the wonderful 3270 devices in that list - or maybe you never have seen any of the listed devices. If so, you haven't really missed anything - except the opportunity to reminisce with others who have!
"Block mode" with asynchronous ASCII devices - such as the IBM 3151 - implies that data is sent only when a key such as Enter is pressed. Indeed this is how devices - or emulators - using the 3270 data stream behave. The alternative mode of behaviour with asynchronous ASCII devices is to send each character as keyed and typically only to display characters when sent by the communicating partner, which, assuming the keyed character is sent back, as it were, is called "echo" mode. I guess that might be a helpful distinction to draw for some watchers - or perhaps not! Chris Mason On Thu, 26 Jun 2008 09:42:57 -0700, Natarajan Mohan <[EMAIL PROTECTED]> wrote: >TN3270 supports block mode from a TSO Client. > >If you are connecting to a remote host (MVS TN3270) you will >successfully connect in transparent mode. > >but if you invoke "TSO TELNET host-name (linemode" then your session >is connected in line mode and anything after that is also connected in >line mode. > >Natarajan > > >IP USER's Guide states > >In 3270 transparent mode, all >full-screen capabilities of the remote host are functional at your >local display >station, but the PA1 key is the only special-function key whose >intended >function is passed to the application by Telnet. In line mode, the >remote host >output is displayed on your screen one line at a time, without >full-screen >capabilities. >v The TELNET command supports IBM 3270-type display stations. Examples >of >supported display stations are: >â IBM 3178 Display Station >â IBM 3179 Display Station >â IBM 3180 Display Station >â IBM 3191 Display Station >â IBM 3192 Display Station >â IBM 3193 Display Station >â IBM 3194 Display Station >â IBM 3275 Display Station Model 2 >â IBM 3276 Control Unit Display Station Models 2, 3, and 4 >â IBM 3277 Display Station Model 2 >â IBM 3278 Display Station Models 2, 3, 4, and 5 >â IBM 3279 Color Display Station Models 2 and 3 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
