J2: Usb Connector; J3, J12: Serial Ports - TMC MI5VP4 User Manual

Chapter 5 Installation

5.3 J2: USB Connector

J2 is the standard USB external connector consisting of two ports. USB
support allows connections of up to 64 plug and play external peripherals
per channel. The following table shows the pin outs of these ports.
Port 1
Port 2

5.4 J3, J12: Serial Ports

The onboard serial ports are J3, a DB-9 connector which is COM1 and
J12, a 10-pin header connector which is COM2. The following table
shows the pin-out assignments of these connectors.
COM1
Signal Name
DCD, Data carrier detect
RXD, Receive data
TXD, Transmit data
DTR, Data terminal ready
GND, ground
24
Pin # Signal Name
1 Vcc
2 USB-
3 USB+
4 Ground
COM2
Pin # Pin # Signal Name
1 6 DSR, Data set ready
2 7 RTS, Request to send
3 8 CTS, Clear to send
4 9 RI, Ring indicator
5 10 Not Used
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