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PK-88 OPERATING MANUAL
2.7
System Setup and Verification
DISCONNECT POWER BEFORE MAKING ANY OTHER CONNECTIONS!
Do these steps before connecting any cables between the PK-88 and your
radio.
1.
Open the PK-88 and install 2 AA batteries in the Battery Holder.
2.
Connect the PK-88 to your computer via the RS-232 cable.
3.
Turn ON your computer. Load and run your communications program.
4.
Connect the wired end of the shielded cable to J2 on your PK-88.
5.
Connect the wires from the PK-88's J2 pins 2 and 8 to each other.
6.
Connect the PK-88 to a regulated 12-volt DC power supply.
7.
Press the PK-88's power switch to the ON position.
8.
Set your computer's data rate to 1200 baud, 7 bits, even parity
if possible. If your serial port is operating at 1200 baud, you
will see the following message right away:
If this message appears, go to Step 10 now.
9.
If you are using your computer or terminal at a different data
rate, word length or parity, your screen may show meaningless
'garbage' or mutilated characters, or nothing at all. If true,
go to Step 10 now.
(Don't worry! - the PK-88 is doing its 'auto-baud' routine. It
measures your computer's data rate, digital word length, parity,
and then sets itself accordingly. The PK-88 automatically scans
baud rates of 300, 1200, 2400, 4800 and 9600 baud.)
10.
Type several asterisks (*) at intervals of one second.
If the cable and connections between the PK-88 and your computer
are correct, the MULT LED will be extinguished and other LEDs
will be lit as the PK-88 does its 'auto-baud' routine. As soon
as the PK-88 has recognized your data rate and set itself to your
data rate, the CMD LED is lit and your screen displays the sign-
on message ending with the "cmd:" command prompt:
NOTE:
The Release date and checksum shown above will change as the
PK-88's firmware is revised or updated. Please note this
Date and Checksum on the inside front cover of this manual.
Please type a star ( * ) for autobaud routine.
PK-88 is using default values.
AEA PK-88 Packet Controller
AX.25 Level 2 Version 2.0
Copyright (C) 1986, 1987, 1988 by
Advanced Electronic Applications, Inc.
Release xx.xxx.xx +
Checksum $xx
cmd:
2-5
INSTALLATION
PK88 - 23
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