Acnodes PCH 3591 - Manual (Page 17)

Pin# Signal Name
1 DCD# (Data Carrier Detect)
2 RXD (Received Data)
3 TXD (Transmit Data)
4 DTR (Data Terminal Ready)
5 Ground
6 DSR (Data Set Ready)
7 RTS (Request To Send)
8 CTS (Clear To Send)
9 JP1 Setting:
Pin1-2 : RI (Ring Indicator)
(default)
Pin3-4 : 5V Standby power
(option)
Pin5-6:12V Standby power
(option)
11. USB3/USB4:
(2.0mm Pitch 2X5 Pin Header) ,Front USB connector, it
provides 4 USB ports via a dedicated USB cable, speed up to 480Mb/s.
Signal Name Pin# Pin# Signal Name
VCC(+5V) 1 2 VCC(+5V)
USB_DB- 3 4 USB_DA-
USB_DB+ 5 6 USB_DA+
Ground 7 8 Ground
NC 9 10 Ground
Note:
Before connection, make sure that pinout of the USB Cable is in accordance with that
of the said tables. Any inconformity may cause system down and even hardware
damages.