User's Guide

Chapter 2: Pre-Installation Considerations
RTMS Echo User Guide ©2019 Image Sensing Systems Inc. 2-4
Surge Suppression/Filtering
Surge Suppression: The CITEL MJ8-POE-B
has been tested and is the recommended
transient suppressor for RTMS Echo sensors.
Figure 2-4: Citel Surge Suppressor
• Power over Ethernet surge protector
• RJ-45 connection for PoE-A or B
• 10/100/1000 Mbps compatible
• Max DC power:
– 7.5 VDC for pins 1, 2, 3, 6
– 60 VDC for pins 4, 5, 7, 8
• Max DC current: 1200mA
• Frequency: 100 MHz
• Bi-directional protection
• Shielded enclosure and connectors
• Din rail mountable
• UL497B listed
Filtering: The COSEL SNR-10-23-DT line noise
filter has been tested and is the recommended
filter for RTMS Echo sensors.
• Voltage rating: 50VDC
• Current rating: 10A
• Leakage current: 50 uA
• Capacitance: 0.022 uF
• Din rail mountable
• RoHS compliant