3 Technical Data
The technical data can be found in the data sheet for the IT 1910i.
3.1 Pin assignments of the connection cable
3.1.1
KB 232-1 IT 190x Part no. 50114517
Helix cable, maximum length 3 m. Signal level 0 and +5 volts
TTL
Pin assignments of the 9-pin D-sub socket (female) for cable CBL-020-300-C00
Pin number
Signal
Designation
1
nc
Not used
2
TX
Transmit data
3
RX
Receiving line / Receive Data
4
nc
Not used
5
GND
Ground connection
6
DTR
Data set ready (+5 volt connected to output)
7
CTS
Clear to send
8
RTS
Request to send
9
VCC IN
4.5 – 5.5 V DC (if no power supply unit is
connected to the power supply unit connection)
Pin at power supply unit connection
Signal
Designation
Inside
VCC IN
4.5 - 5.5 V DC
Outside
GND
Ground connection
For the suitable power supply unit for IT 190x (100 - 230 V/50 – 60 Hz), see chapter 7.
3.1.2
KB 232-1 IT 190x Part no. 50115105
As with part number 50114517, but True RS 232 variant available with -12 to +12 volt signal level. Cable
designation: CBL-120-300-C00.
3.1.3
KB PS2-1 IT190x Part no. 50114519
Helix cable, maximum length 3 m.
Pin assignments of the Mini DIN socket or connector for cable CBL-720-300-C00
Pin connector Pin socket Signal
Designation
1
-
PC Data
PC data line
2
2
NC
Not used
3
3
GND
Ground connection
4
4
VCC IN
5 Volts DC
5
-
PC Clock
PC clock line
6
6
NC
Not used
-
1
KB data
Keyboard data line
-
2
KB clock
Keyboard clock line
Leuze electronic
IT1910i
8
