StarTech.com ESY1525L - Manual (Page 23)

CN1, CN2: COM4 and COM3 Connectors
Pin # Signal Name
1 DCD
2 RXD
3 CTS
4 GND
5 TXD
6 RTS
7 DSR
8 DTR
CN3: +5V Connector
Pin # Signal Name
1 +5V
2 Ground
CN4: +5V AND +12V Connector
Pin # Signal Name
1 +5V
2 Ground
3 +12V
CN6, CN9: USB Pin Header
Pin # Signal Name
1 Ground
2 USB-
3 USB+
4 Vcc
CN10: Panel Inverter Power Connector
Pin # Signal Name
1 +12V
2 Ground
3 Bright
Adj
4 Ground
5 BKLT ON
CN11: OSD Panel Board Connector
Pin # Signal Name
1 Vol+
2 Vol-
3 Bright+
4 Bright-
5 Ground
6 Power On/Off
4-18 E l o E n t u i t i v e T o u c h m o n i t o r U s e r G u i d e