ABB UniGear Series Engineering Manual page 110

E All Satellite reference clock with PRP support
Removal of Coupler adapter AR4
SMV Max delay parameter
UniGear 500R – tested voltage level up to 17.5kV
Protection and control REX640
Updated recommended Managed Ethernet switches
Supported Process bus application extended about voltage sharing
redundancy
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2019-02-26
1V LG 5 00007 E