User Manual

TMCM-3351 Hardware Manual • Hardware Version V1.00 | Document Revision V0.91 • 2017-JUL-11

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4.4 Analog Input Connector

The TMCM-3351 oﬀers four dedicated analog inputs with programmable range (0. . . +3.3V or 0. . . +10V).

There are two 4pin connectors (Molex KK series) with two analog inputs available via each connector.

Pin Label Description

1 Analog_0/2 Analog input 0/2

2 GND System / module ground

3 Analog_1/3 Analog input 1/3

4 GND System / module ground

Table 8: Analog input connector

4.5 USB Connector

The TMCM-3351 includes one USB device interface for serial communication. A standard USB type B

connector is integrated on-board. USB is one out of four diﬀerent interfaces available for communication

with the TMCM-3351.

The TMCM-3351 supports USB bus powered and self powered operation. During bus powered operation

the on-board digital core logic including processor and non-voltaile memory (EEPROM) will be supplied

via USB. That is, just the USB connection is required for communication and power supply. This mode

is intended for ﬁrmware updates, TMCL program download or parameter setting / read-out of the non-

volatile (EEPROM) memory. Of course, motor operation is not possible in this mode due to limited voltage

and power available via USB.

For USB self-powered operation an external power supply is required with power supply inputs via the

main power supply connector. Please not that the TMCM-3351 might draw power from the USB connection

depending on voltage levels.

Pin Label Description

1 VBUS +5V

2 USB_D- Data-

3 USB_D+ Data+

4 GND System / module ground

Table 9: USB connector

4.6 RS232 Connector

The board includes one RS232 interface for serial connection. A standard DSUB 9pin female connector

is integrated on-board for RS232 connection. RS232 is one out of four diﬀerent interfaces available for

communication with the TMCM-3351.

Pin Label Description

2 RS232_TxD RS232 transmit serial data

3 RS232_RxD RS232 receive serial data

5 GND System / module ground

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