Specifications

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PK ["n"] Default: none
Mode: All Host: PK
_________________________________ Parameters: __________________________________
"n" - a hex number used to access the PK-900's memory and I/O locations.
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PK (Peek/Poke) permits access to memory locations. To use the PK command:
o Set the memory address into the ADDRESS command.
o Use the PK command without arguments to read that memory location.
o Use PK with one argument 0-$FF to write to that memory location.
This command is used as a programmer's aid and is not needed for normal use.
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PPersist ON|OFF/ON|OFF Default: ON/ON
Mode: Packet, PACTOR Host: PP
_________________________________ Parameters: __________________________________
ON - The PK-900 uses p-persistent CSMA (Carrier Sense Multiple Access).
OFF - The PK-900 uses DWAIT for TAPR-type 1-persistent CSMA.
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When PPERSIST is ON (default), the PK-900 uses the PERSIST and SLOTTIME
parameters for p-persistent CSMA instead of the older DWAIT CSMA procedure.
PPERSIST may be enabled or disabled on each Radio Port.
When your computer has queued data for transmission, the PK-900 monitors the
DCD signal from its modem. When the channel clears, the PK-900 generates a
random number between 0 and 255. If this number is less-than or equal to
"PERSIST", the PK-900 transmits all frames in its queue. If the random number
is greater than "P", the PK-900 waits .01 * SLOTTIME seconds and repeats the
attempt. PPERSIST can be used in both KISS and normal AX.25 operation.
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PRType "n" Default: 2 (Epson)
Mode: FAX Host: PY
_________________________________ Parameters: __________________________________
"n" - 0 to 255, specifying a code for dot graphics sequences used in FAX.
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The following is a list of the different printer graphics types the PK-900
supports the convey the received FAX graphics information to your computer.
PRTYPE Printer PRTYPE Printer
0 Epson 4 IBM
8 Radio Shack (Tandy) 12 Apple (G)
16 Apple (S) 20 old Okidata
24 Okidata 28 Gemini 10, 15
32 Star Micronics 36 GX-100, Gorilla
40 Texas Instruments 44 Genicom
48 Miscellaneous (HP ThinkJet) 52 Citizen
56 NEC 60 Anadex
Unsupported PRTYPE settings are treated as PRTYPE 0.
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