6. Appendix

6.3 Glossary

 

Alternate source

Backup source that steps in if the preferred source fails.

JBUS communication card

Internal card implementing the JBus protocol on a serial link to supply the user with

 

system information.

Load

Device(s) or system(s) connected the Upsilon STS output.

Manual bypass

Q1BP, Q3 and Q2BP switches, accessible to the user, that may be used to directly

 

supply the load from Source S1 or S2. The bypass enables servicing on the equipment

 

without interrupting the supply of power to the load.

Normal mode

Operating mode during which the load is supplied by the preferred source.

Preferred source

Source selected as the normal source of power.

Relay communication card

Internal card implementing contacts to supply the user with system information.

Static switch

Electronic switch ensuring instantaneous switching.

34020113EN/AA - Page 29

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MGE UPS Systems 30A user manual Glossary