User manual

37 PPC-157T User Manual
Chapter 5 Jumpers and Connectors
Table 5.19: CN26 (COM1 RI Function Selection Connector)
Pin Signal
1COM1_RI
2 COM1_RI_Selection
3+V5
4 COM1_RI_Selection
5+V12
Table 5.20: CN28 (LCD Back Light Connector)
Pin Signal
1+V12
2+V12
3GND
4GND
5LCD_BKLTEN
6LCD_VBR
7LCD_DET
Table 5.21: CN29 (Power Button Connector)
Pin Signal
1 PANSWIN
2GND
Table 5.22: CN34A (COM3 RS-232 serial port)
Pin Signal Pin Signal
1 DCD# 2 RX
3 TX 4 DTR#
5 GND 6 DSR#
7 RTS# 8 CTS#
9 RI#
Table 5.23: CN34B (VGA)
Pin Standard Connect
15
9
6
324
78