Pin Descriptions; Figure 7-1. Serial Port Connector; Table 7-1. Serial-Port Pin Descriptions - Advanced Energy MDX II User Manual

®
Advanced Energy
MDXII units are shipped from the factory configured for either an AE Bus RS-232 or RS-485
protocol operation or a Profibus RS-485 protocol operation. "Configuration" on page 7-3
explains how an MDXII unit is configured for either protocol.

Figure 7-1. Serial port connector

Pin Descriptions

Table 7-1. Serial-Port Pin Descriptions

Pin
1 unassigned
2 TXD.D
3 RXD.D
4 unassigned
5 COM.D
6 TR-
7 TR+
8 unassigned
9 unassigned
7-2
Name
This output signal is used to transmit data according to
RS-232 protocol.
This input signal is used to receive data according to
RS-232 protocol.
This common signal is a dedicated return to internal
system ground, then to chassis ground, and finally to
protective earth-ground. All serial communications
signals should be referenced to this pin.
This digital signal is used to transmit and receive (-)
data according to RS-485 protocol.
This digital signal is used to transmit and receive (+)
data according to RS-485 protocol.
Serial Port Connection, Controls and Indicators
Description
5700262-R