Telex 80 - Manual (Page 4)

2
IP-223 to Kenwood Radios
2.2.1 IP223 Rev F or higher Board Configuration:
Set the jumper J35 to B position for line 1 and the jumper J26 to B position for line 2
IP223 DB9 IP223 Serial
Signal Line 1 Line 2
KCT-19 Accessory Conn.
TXD 9 4 14
RXD 1 6 15
2.2.2 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.
Pin on U45 of the board IP223 Serial
Signal
Line 1 Line 2
KCT-19 Accessory Conn.
TXD 11 10 14
RXD To the pad
of pin 12
To the pad
of pin 9
15
2.3 TK-x90 Model Cable Assembly:
The tables below show the assembly cable for the TK-x90 model radio.
Signal IP223 DB25 TK-x90 Radio DB25
Ground 7 7
PTT Common 2 7
PTT 14 2 Aux Input (Programmable)
COR 20 20 AO1 (Programmable)
RX+ 24 17
TX+ 25 13
2.3.1 IP223 Rev F or higher Board Configuration:
Set the jumper J35 to B position for line 1 and the jumper J26 to B position for line 2
IP223 DB9 IP223 Serial
Signal
Line 1 Line 2
TK-x90 Radio DB25
TXD 9 4 10
RXD 1 6 9