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ASAI-BD (Multi-Application Platform Board)
Issue 1 June 2005 483
● LED use: The LED Control message 038x requests the Angel to drive the red, amber,
and green LEDs on the face plate of a typical port board on or off. Only the MAPD’s red
LED is controlled by this message. Yellow and green change requests the MAPD
receives from the switch drive LCD behavior rather than LED behavior. The system
continues to send the same LED control messages to the MAPD that the system
currently sends to every other port board. The MAPD handles proper interpretation of
these messages. You should note that the PC on the MAPD and the switch itself control
the LEDs and the LCD on the MAPD.
● Port Administration: In Administration Without Hardware (AWOH), the switch allows
administration of up to 8 ports in any of the first 12 ports. If the port type later reported by
the board does not match the existing type, the switch assumes it to be a MAPD board
with a different configuration and rejects the board.