TCW220_R4.15
–
November 2022
Page 9
6.2.5.
Relays
The relay contacts are internally connected directly to the terminal connectors. For all relays
normally open, normally closed and common contacts are available.
For loads with higher switchable current/voltage than specified, an external relay should be used.
When mechanical relays switch inductive loads such as motors, transformers, relays, etc., the
current will arc across the relay contacts each time the contacts open. Over time, this cause wears
on the relay contacts which shorten their life. When switching an inductive load, it is
recommended that relay contact protection devices are used.
6.2.6.
Network connection
The Ethernet port of TCW220 should be connected to 10/100 Base-T Ethernet hub, switch or
router.
For configuration, TCW220 may be connected directly to the Ethernet port on a computer. The
device support
Auto-MDIX
and it is not necessary to use “crossover” cable, standard “straight
-
through” can be also used.
Summary of Contents for TCW220
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