The application note is intended to show how to assemble the cable and setup the hardware of
the IP223 for channel change and FleetSync applications using Kenwood radio.
2 Setup
2.1 TK-x150/180 Model Cable Assembly:
NOTE: There are differences between the TK-x150 and TK-x180 radios DB25 connectors.
If COR is used, pin 20 (TK-x150 an output only) will be programmed for that function and
the cable will route that signal to the IP-223. On the TK-x180 the same pin is a general
purpose I/O and has an additional 470 ohm series resistance added. This requires that the IP223 external pull-up resistance must be removed. Jumpers J8 (Line 1) and J30 (Line 2)
should be placed in a neutral position (neither A or B, hanging).
The tables below show the assembly cable for the TK-x150 model radios.
Set the jumper J35 to B position for line 1 and the jumper J26 to B position for line 2
IP223 Serial
Signal
TXD
RXD
IP223 DB9
TK-x90 Radio DB25
Line 1 Line 2
9 4 10
1 6 9
IP-223 to Kenwood Radios 3
2.3.2 IP223 Rev A to Rev E Board Modifications:
Lift Pin 12(line 1) or pin 9(line 2) of U45 according to the line selected and solder to its PCB
Pad. Please refer to the Figure 1 for better demonstration.
IP223 Serial
Signal
TXD
RXD
Pin on U45 of the board
Line 1 Line 2
TK-x90 Radio DB25
11 10 10
To the pad of
pin 12
To the pad of
pin 9
9
Figure 1
4 IP-223 to Kenwood Radios
2.4 IP223 Configuration:
Setup the desired IP223 line for Kenwood radio control at the following screen:
2.4.1 Per-line setup screen
C
B
A
Choose radio model in the Serial Port Mode box (A).
Change Serial Port Parameter box to 9600.N.8.2 (B).
Configure Talk Group and CHAN fields for channel change capability (C ).
Program Function Port, Input screen for Ext PTT in Radio 1 Al1.
IP-223 to Kenwood Radios 7
Program Function Port, Output screen for COR in Radio 1 AO1.
8 IP-223 to Kenwood Radios
2.5.3 TK-x150/180 Series
Program Function Port, Aux Input for External PTT in AUX Input4 location and COR in AUX
Output1.
Program Com 1 for DATA
IP-223 to Kenwood Radios 9
For the TK-x180, the AUX programming screen is different. Please note that the same interface
cable is used for both the TK-x150 and TK-x180 radios. If COR is used, IP-223 Jumper 8 (Line
1) or Jumper 30 (Line 2) will have to be placed in a neutral position for the Aux port pin 20 on
the TK-x180 to function properly as COR.
TK-x180 auxiliary setup screen
Suggestions or Comments
We’d appreciate your input. Please send us your suggestions or comments concerning this application
note, by fax (402-467-3279) or e-mail them to