Operation
5.2Communication
5.2.1LDM Setup Port Connection
Use the LDM Setup port to download and use the software from Liebert’s Web site for monitoring, configuration and firmware upgrades (see 5.3 - Downloading the Software). This port is not a ter- minal interface.
To connect to the LDM Setup port:
•Connect one end of a standard DB9
•Connect the other end of the cable to the LDM Setup port on the Liebert LDM, as shown below.
NOTE
The images above are intended for illustration only. The location of the external port may vary.
5.2.2Modbus Connection
Use the Modbus port for remote communication. The Liebert LDM supports 2- or
To connect to the Modbus port:
•Look for Connector TB1 on the BCB. This is the
•Refer to the following figure for proper connection points.
Pin 5 = TX+
Pin 4 = TX-
Pin 3 = TX+/RX+
Pin 2 =
Triangle |
| Pin 1 = Shield |
| ||
indicates |
|
|
Pin 1 |
|
|
NOTE
The triangle printed on the circuit board depicts Pin 1.
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