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2.3
MD29AN
The MD29AN provides a dedicated RS232 programming port (Connector SK2) and
a general purpose RS485 communications port (Connector PL1). In addition, the
MD29 also has a dedicated CTNet port (PL2).
2.4
RS232 Port Connections
The pin connections for the RS232 port are given in the table below. The RS232
port can be connected to a 9 way serial port using a 9-way one-to-one ribbon cable
lead.
2.5
RS485 Port Connections
The pin connections for the RS485 port are given in the table below 0VSC is
completely isolated from the main Unidrive and Mentor II 0V.
Pin
1
2
3
6
7
UD70/MD29 Installation Guide
Issue Number: 3
SK1
MD29AN
PL1
Pin
Function
2
TxD
3
RxD
5
0V
Function
0VSC
0VSC
TxA
/Tx
RxA
/Rx
TxB
Tx
RxB
Rx
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PL2
Description
Transmit line
Receive line
0V
Description
Isolated 0V for serial communications link.
Inverted transmit line
Inverted transmit line
Transmit line
Receive line
SK2
6
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