GE Industrial Solutions Galaxy Verification - Manual (Page 101)

Galaxy Power System Verification Procedures
Issue 3 January 2008 Glossary 5 - 9
Millennium Controller Boards (Basic)
BSH1 or BSH2
Basic Controller
Digital Board Contains the microprocessor, memory, serial interface, and other digital
and analog components used for the Basic controller. Communicates
over an isolated serial data link to the GPS Bay Interface Card to control
rectifiers, converters, manage low voltage disconnect contactors, and
bay level alarm inputs.
BSH1 is for -48V systems; BSH2 is for +24V systems.
BSK1 LCD
Display/Keypad,
LED Board Mounted in a shallow enclosure on the front door of the power plant.
Contains the keypad switches, LEDs, and the eight-line LCD display for
the front panel, which provides the primary user interface for the
controller. Mounted on the BSH Basic Controller board.
BSL1 or BSL2
Alarm Termination
Board Provides connection points to interface external controller input signals
and alarm outputs to the customer alarm system.
BSL1 provides for wire wrapped connections; BSL2 provides for
insulation displacement connections.