CC-Link IE TSN Industrial Managed Switches Preventive Maintenance Bulletin

This technical bulletin provides guidelines for the preventive maintenance and service life management of CC-Link IE TSN industrial managed switches (models NZ2MHG-TSNT8F2 and NZ2MHG-TSNT4). It covers failure rate stages (initial, random, wear-out), life-limited components such as aluminum electrolytic capacitors and relays, and recommends a replacement cycle of approximately five years to prevent malfunction.