Telex manual TK-x150/180 Model Cable Assembly, TK-x80 Model Cable Assembly

IP-223 to Kenwood Radios 1

1 General

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 IP- 223 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.

Signal	IP223 DB25			TK-x150 Radio DB25
Ground		7		7
PTT Common		2		7
PTT		14		12 (Aux Input 4 Programmable)
COR		20		20 (Aux Output 1 Programmable)
RX+		24		17
TX+		25		6
IP223 Serial	IP223 DB9			TK-x150 Radio DB25
Signal
	Line 1		Line 2
TXD	2		8	2
RXD	3		7	3

For IP223 Rev F board or later make sure jumper J35 is in “A” position for line 1 and jumper J26 is in “A” position for line 2.

2.2 TK-x80 Model Cable Assembly:

The KCT-19 accessory cable from Kenwood radio is needed and the 'E' connector is connected to CN4 inside the radio to establish the serial communication.

The tables below show the assembly cable for the TK-x80 model radios.

Signal	IP223 DB25	KCT-19 Accessory Conn.
Ground	7	6
PTT Common	2	6
PTT	14	8
COR	20	11
RX+	24	12
TX+	25	5