RLE Technologies SeaHawk LD1500 Distance-Read Leak Detection Controller User Manual
- June 5, 2024
- RLE Technologies
Table of Contents
PoE Troubleshooting Guide
v02.22
This guide outlines common troubleshooting guidelines for the 24V-POE-Kit,
which can be used with RLE’s LD1500, LD2100, LDRA6, WiNG-MGR, and WiNG-MGR v2.
Before you work with your PoE device, consult rletech.com to ensure you’re
working with the most recent version of the documentation available. If you
need further assistance, please contact RLE Technologies at
support@rletech.com.
RLE Devices and PoE
RLE’s Engineering team researched and tested a wide variety of PoE devices and
has approved the 24V-POE-Kit, which can be used with RLE’s LD1500, LD2100,
LDRA6, WiNG-MGR, and WiNG-MGR v2.
The 24V-POE-Kit has been tested and verified to provide isolated power, so you
can be sure your leak detection devices will work correctly.
Our Engineering Team emphasizes one very important point regarding PoE
switches and RLE products:
Due to the power requirements of RLE devices, you must make sure your PoE
switch is PoE+ (802.3at) compliant. The PoE+ standard allows for up to 25
watts of power delivery to end devices. If your switch is not PoE+ compatible
you will not be able to power RLE’s controllers using a PoE splitter.
PoE FAQ
| Question | Response |
|---|---|
| I’m having issues getting my Cisco switch to work with PoE+ devices. | Review |
this document from PoE Texas: Configuring Cisco Enterprise for PoE to USB-C –
PoE Texas –
https://www.poetexas.com/cisco-configuration-for-usbc/
Many Cisco switches support PoE+ but have it disabled by default. If the port
is only negotiating 15.4W then it is time to check the switch configuration
settings.
I’m having issues with power budgeting on my PoE+ switch – devices fail to
power up, two devices work well but adding a third causes problems.| While
many switches support PoE and PoE+ they will not have enough power available
to supply the full wattage required to all ports simultaneously. Exceeding
this power budget causes problems with your PoE devices.
Read the specifications for your switch to determine how many devices can be
powered at a single time and the total available wattage. Leave yourself a
buffer to take into account the power required by the PoE splitters and the
power loss in the cable.
I’m using another PoE splitter and I’m having issues powering the device or
detecting leaks.| Verify the splitter supports POE+ and is isolated. If the
PoE+ splitter is isolated, the input and output grounds cannot be connected.
RLE leak controllers cannot detect leaks correctly with a non-isolated power
supply. Non-isolated power supplies can cause inaccurate leak distance
readings, leak distance readings beyond the length of the sensing cable, or
failure to detect a leak altogether. The 24V-POE-Kit has been tested and
verified to provide isolated power, so you can be sure your leak detection
devices will work correctly with that specific PoE solution.
I’m using an LD-ENC and PoE splitter with my leak controller.| Only one power
source should be used at a time. When using PoE, the built-in supply on the
LD-ENC is not needed. Make sure to disconnect the 24V wires from the terminal
block of the controller before connecting power from the PoE splitter.
I’m still having issues.| It may be time to reach out to the vendor of the PoE
splitter and/or PoE switch. Our support team will always be available to help
but there are many nuances to PoE installation; the manufacturers of the PoE,
equipment may be best suited to answer some questions.
References
- RLE Tech | Data Center Environment Monitoring & Leak Detection
- Configuring Cisco Enterprise for PoE to USB-C - PoE Texas
- RLE Tech | Data Center Environment Monitoring & Leak Detection