Technical data

Hardware Information
8-29
SIMATIC Box PC 620 Manual
C79000-G7076-C639-02
I/O Port for Front Control Elements
All the signals in addition to the Display and COM2 port which are necessary for
the connection of front control elements are applied to this port. The maximum
cable length is 50cm with a USB data transfer rate of 12MBaud.
Pin No.
Signal Name Remark
1 GND
2 P12V Power supply for inverter (max. 0.6A)
3 BL_ON Backlight on (5V..12V = On)
4 P5V_fused +5V VCC (fused)
5 GND
6 P3V3_fused +3,3V VCC (fused)
7 K_CLK Keyboard Clock
8 K_DATA Keyboard Data
9 M_CLK Mouse Clock
10 M_DATA Mouse DATA
11 P5V_fused +5V VCC (fused)
12 USB_D1M USB Data- channel 1
13 USB_D1P USB Data+ channel 1
14 GND GND
15 LCD_SEL0 Display Type-Select Signal 0
16 LCD_SEL1 Display Type-Select Signal 1
17 LCD_SEL2 Display Type-Select Signal 2
18 LCD_SEL3 Display Type-Select Signal 3
19 RESET_N Reset signal (low active)
20 SPEAKER Connection for system speaker
21 HD_LED HD LED, anode with 1kΩ in series on motherboard
22 DP_LED MPI/DP LED, anode above 1kΩ in series on motherboard
23 Ethernet_LED Ethernet LED, anode above 1kΩ in series on motherboard
24 TEMP_ERR LED temperature error, anode with 1kΩ in series on
motherboard
25 RUN_R LED watchDog error, anode with 1kΩ in series on
motherboard
26 RUN_G LED watchdog o.k., anode with 1kΩ in series on motherboard