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PK-232 TECHNICAL MANUAL
4.2.3
CONNECT and DISCONNECT
Send the CONNECT (CO) and DISCONNECT (DI) commands with:
CTL byte = $4
4.2.4
ON/OFF Booleans or Switches
To set ON/OFF switch, the only argument is an ASCII Y or N for YES or NO respectively.
o
Y or N is returned in response to a query command.
For example, to set MRPT ON, send:
SOH
o
To set a numerical value, the value must be in ASCII, not binary.
4.2.5
TXDELAY
To set TXDELAY to 40, send:
$01
SOH
4.2.6
SENDPAC
To set SENDPAC to $0D, send:
$01
SOH
4.2.7
Interrogation or Querry Commands
Querry commands are similar to the human or verbose mode in that the two-letter com-
mand to the PK-232 is not followed by arguments, that is, the command is followed by
ETB.
4.3
PK-232 Responses
The PK-232 always issues a response to each command.
o
The computer should always wait for the response before issuing another com-
mand.
The PK-232 sends blocks to the computer using these CTL bytes:
$2F: Echoed data in Morse, Baudot ASCII and AMTOR,
$3x: Data from channel x.
$3F: Monitored frames.
$4x: Link status from channel x (response to CONNECT command).
$4F: Response to command.
$5x: Link messages from channel x.
$5F: Status errors.
PK232TM Rev. A 5/87
x
x
, where
is the channel 0-9.
$4F
M
R
$4F
$54
$44
CTL
T
D
$4F
$53
$50
CTL
S
P
CHAPTER 4 – HOST MODE AND SPECIAL APPLICATIONS
Y
ETB
$34
$30
$17
4
0
ETB
$24
$30
$44
$
0
D
4-5
$17
ETB
Page 22
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Table of Contents
Troubleshooting
