Ascii; Awlen; Ax25L2V2 - AEA PAKRATT PK-232 Operating Manual

Multi-mode data controller
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USER'S GUIDE
See "SELCAL" for information on the derivation and structure of the selective calling code.
You don't have to type the SELCAL a second time if you intend to call the same station again right
away.

ASCII

Mode:
ASCII
is an immediate command that switches your PK-232 into the ASCII mode.
ASCII
is the proper mode to use if you wish to use RTTY to transmit text, data or other information
containing lower case and special characters not present in the Baudot/Murray and ITA #2 alpha-
bets or character sets.
Because the ASCII character set requires a minimum of seven bits to define the identity of each
transmitted or received character, under worst-case conditions, ASCII is sometimes more subject
to data errors and garbled text than Baudot/ITA#2 at the same data rate.
n

AWLEN

Mode: All
n
Parameters:
-
The parameter value defines the digital word length used by the serial input/output (I/O) terminal
port and your computer or terminal program.
AWLEN
Set
to 7 for most packet operations, such as conversation, bulletin board operation and
transmission of ASCII files.
If eight-bit words are sent to the PK-232 in the Command or Converse Mode, the eighth bit is nor-
mally removed, leaving a standard ASCII character, regardless of the setting of
All 8 data bits of each character must be retained to send executable files or other special data.
AWLEN
Set
to 8 and use Transparent Mode.
You can also use Converse Mode and set
cede the Converse Mode special characters with the
AX25L2V2 ON|OFF
Mode: Packet
Parameters:
ON -
OFF - The PK-232 uses AX.25 Level 2 Version 1.0 protocol.
Some implementations of the earlier version of AX.25 protocol won't properly digipeat Version 2.0
AX.25 packets. This command exists to provide compatibility with these other TNCs until their soft-
ware has been updated. For best results during this transition period set
After your local area TNCs have been updated to the newer protocol version, set
PK232UG Rev. B 9/86
Mnemonic: AS
Mnemonic: AW
7 or 8 specifies the number of data bits per word.
Mnemonic: A
The PK-232 uses AX.25 Level 2 Version 2.0 protocol.
Immediate Command
Default: 7
AWLEN
8BITCONV
8 and
PASS
character in the data you send.
Default: ON
6-18
COMMAND SUMMARY
AWLEN
.
ON. However, you must pre-

AX25L2V2

OFF.
AX25L2V2
ON.
120

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