Delta 4Ax-602804-xHxx User Manual download pdf (Page 13)

MACRO-CPU Hardware Reference

ACC-Ux “UBUS” backplane board. It can also be used to bring in 5V power, and optionally +/-15V power, from

a backplane or breakout board, to the entire MACRO Station.

Note

When interfacing to accessory boards across the UBUS backplane, it is strongly recommended to

use a new revision (-105 or higher) of the MACRO CPU board, and an ACC-Ux backplane board

(not an older ACC-Jx backplane board). The newer revision MACRO CPU boards have stronger

bus driver ICs, but they do not work well with the termination of the ACC-Jx backplane boards.

Power Terminal Block: The TB1 4-point terminal block can be used to bring in 5V power, and optionally

+/-15V power, to the entire MACRO Station. In a UMAC (pack) configuration, the power is more likely to be

brought in through the backplane.

3U MACRO CPU Board Hardware Setup

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Delta 4Ax-602804-xHxx User Manual Page 13