Parameter Values Description
Serial Port
8N1, 8N2, 8E1, 8E2,
8O1, 8O2
Sets the parity and stop bits for the port
RS485 Bias OFF, ON
Turns on biasing on the client device over
the RS-485 port
Disabling serial communications ports
You can disable serial communications ports using ION Setup, meter webpages, or the display.
Disabling serial communications using ION Setup
NOTE: Disabling unused ports is considered a cybersecurity best practice to help minimize
unauthorized access to your meter.
To disable serial communications using ION Setup:
1. Open the Setup Assistant for your meter.
2. Click Communications > Serial Settings.
3. Click the Com1 or Com4 tab.
4. Select Protocol and click Edit.
5. Select None from the drop-down list box and click OK.
Disabling serial communications using the webpages
NOTE: Disabling unused ports is considered a cybersecurity best practice to help minimize
unauthorized access to your meter.
To disable serial communications using ION Setup:
1. Open a web browser and enter your meter’s IP address in the address bar. The webpage
login prompt is displayed.
2. Enter your login credentials.
3. Navigate to Setup > Serial Port and expand the Basic Settings section.
4. Choose COM1/ RS485#1 - Protocol or COM4/ RS485#2 - Protocol from the drop-down
list box and select None to disable the port.
5. Click Apply. When prompted, click Yes to save the changes.
Disabling serial communications using the display
NOTE: Disabling unused ports is considered a cybersecurity best practice to help minimize
unauthorized access to your meter.
To disable serial communications using ION Setup:
1. Press the Home button.
2. Press Setup Menu > Communications Setup.
9810 series - User manual Communications
7EN05-0390-08 92
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