Kantronics KAM Operation Manual

Also see for KAM: Manual Command manual Instruction manual Installation manual

Kantronics KAM Operation Manual Manual pdf 7 page image

INTRO3again, the changes will not be remembered unless you have used the PERM command, or using aBattery Backup or SmartWatch.All commands are listed alphabetically in the Commands Manual and many are discussed by modein this Operations Manual. The Command Manual also has an introduction that goes into more de-tail on the structure of commands.Asynchronous CommandsAsynchronous commands are commands that allow your TNC and computer to talk the same lan-guage. These commands in the TNC will have their counterparts in your computer program,although some programs may limit what you can set. Following is a list of TNC defaults and theircorresponding computer setting. then we will explain the commands using both the computer andthe TNC terminology.TNC ComputerABAUD 0 The TNC runs an autobaud routine to allow it to match thespeed set in your computer when the TNC receives an asterisk8BITCONV ON Data Bits or Word Length 8PARITY 4 Parity no or noneECHO ON Full DuplexXFLOW ON Software Flow ControlBaud Rate is how fast the computer and TNC will talk to each other. This is set in the TNC withthe ABAUD command. The settings allowed by the TNC are 0, 300, 600, 1200, 1800, 2400, 4800and 9600. (KPC-1 only allows 0, 300, 1200 and 9600.) When set to 0, the autobaud routine willrun at power-up – requiring you to press the asterisk whenever you turn on the TNC.Word Length and Data Bits are often used interchangeably to refer to how many bits are usedto recognize a character. Each character is made up of smaller parts called bits (analogous to a ditor dah in Morse code). These bits are seen as high or low voltages on the cable between the TNCand computer to make the desired combination for a character. A standard by the name of ASCIIallows 8 bits for each character, although all the standard alphanumeric characters and punctua-tion can be recognized with only 7 bits. The TNC will talk to the computer using either 7 or 8 bitsdepending on setting of the command 8BITCONV. As default 8BITCONV ON means 8 bits. Set8BITCONV OFF to strip the 8th bit and use only 7 bits.Parity determines what the 8th bit will be and is an old form of error detection which few mod-ern-day programs check. PARITY 4 is the default in the TNC which means the 8th bit will be seenas part of the character. Odd or Even Parity will change the 8th bit depending on whether there isan odd or even number of high voltages in the 7-bit character. Mark and Space Parity will hold the8th bit either high or low. In the TNC, setting PARITY 0 is odd parity; Parity 1 is even parity;PARITY 2 is mark parity; PARITY 3 is space parity and PARITY 4 is no parity. 8BITCONV must beON before the TNC will look at the 8th bit (the TNC always sends the 8th bit in TRANSPARENTMode).Stop Bits. The TNC always uses 1 stop bit.Full Duplex or Half Duplex. (Some programs use the term Echo for Half Duplex.) When usingFull Duplex the computer expects the attached device to send back (echo) what was sent to it. Asetting of Half Duplex will tell the program that it must do the displaying to the screen for whatyou type. The TNCs default is ECHO ON, which tells the TNC to send back what it receives. This