Custom Audio Electronics MODUS3 User Manual page 23

8 1
1 n.c.
2 RX
3 TX
4 RT
J1
5 GND
6 FEED
7 LED_STS
8 GND
NOTES:
Given the presence of the RS232 standard, logic value "0" corresponds to the voltage value +VRS232 (voltage value
between +3Vdc and +15Vdc) and logic value "1" corresponds to the voltage value -VRS232 (voltage value between
-3Vdc and -15Vdc.
DEVICE > PC connection
The following picture shows an example of connection between the device and a personal computer using a molex
connector 8 pin 51021 female and a 9 pin RS232 serial connector:
DEVICE
LED_STS
green LED Ø 3 mm Vishay TLHG4400 (or equivalent)
FEED
Imax = 1.5 mA
RS232 SERIAL INTERFACE
Molex 53261-0871
During reception, takes the values -VRS232 and +VRS232 depending on data
During transmission, takes the values -VRS232 and +VRS232 depending on data
1
RX
2
TX
3
RT
4
GND
5
FEED
6
LED_STS
7
GND
8
TX
RX
DTR
GND
DSR
1
RTS
2
1
2
3
4
5
6
7
8
9
PC
23