TMCM-343 Hardware Manual (V1.07 / 2011-JUN-08)
15
Copyright © 2011, TRINAMIC Motion Control GmbH & Co. KG
7.4.2
RS232
Pin
Direction Name Limits
Description
66
in
RxD
TTL
RS232 receive data
68
out
TxD
TTL
RS232 transmit data
2, 4, 6, 8, 10
in
GND
0V
Connect to ground
Table 7.4: Pinout for RS232 connection
The module only provides a serial interface at TTL level. For using RS232 a suitable level shifter has to
be added by the user (e.g. MAX202).
Pin 66 : RS232_RxD
Pin 68 : RS232_TxD
Pin 2
Pin 1
Pin61: GND
TMCM-343
68 - Pin - Connector
Host
TxD
RxD
GND
level shifter
( e. g . MAX 202 )
TTL
Figure 7.4: Connecting RS232
7.4.3
RS485
Pin Number
Direction
Name
Limits
Description
64
Out
RS485_DIR
TTL
Driver/receiver enable for RS485 transceiver.
0: receiver enable
1: driver enable
66
In
RxD
TTL
RS485 receive data
68
Out
TxD
TTL
RS485 transmit data
2, 4, 6, 8, 10
In
GND
0V
Connect to ground
Table 7.5: Pinout for RS485 connection
The TMCM-343 module only provides a serial interface at TTL level. To use RS485 a suitable RS485
transceiver (like MAX485) has to be added by the user.
Pin 61 : GND
TxD
RxD
DIR
RS485+
RS485-
GND
TxD
RxD
DIR
RS485+
RS485-
GND
Transceiver
e
. g . MAX 485
Transceiver
e. g . MAX 485
Pin 64 : RS485_ DIRECTION
Pin 66 : RS232_RxD
Pin 68 : RS232_TxD
Pin 2
Pin 1
TxD
RxD
DIR
GND
HOST
TMCM-343
68 - Pin - Connector
Figure 7.5: Connecting RS485
