INDUSTRIAL I/O PACK SERIES AVME9675A
VME64x bus 6U CARRIER BOARD
Acromag, Inc. Tel: 248-295-0310
- 12 - http://www.acromag.com
- 12 -
https://www.acromag.com
2.2 Card Cage Considerations
IMPORTANT: Adequate air
circulation must be provided to
prevent a temperature rise
above the maximum operating
temperature.
Refer to the specifications for loading and power requirements. Be sure
that the system power supplies are able to accommodate the power
requirements of the carrier board, plus the installed IP modules, within the
voltage tolerances specified.
The dense packing of the IP modules to the carrier board restricts air flow
within the card cage and is cause for concern. Adequate air circulation
must be provided to prevent a temperature rise above the maximum
operating temperature and to prolong the life of the electronics. If the
installation is in an industrial environment and the board is exposed to
environmental air, careful consideration should be given to air-filtering.
2.3 Board Configuration
The carrier board may be configured for different applications. All possible
configuration settings will be discussed in the following Sections. The
jumper locations and IP module positions are shown in Figure 2 (Drawing
5044-452). Power should be removed from the board when installing IP
modules, cables, termination panels, and field wiring. Refer to Mechanical
Assembly Figure 3 (Drawing 4501-434) and your IP module documentation
for specific configuration and assembly instructions.
2.4 VMEbus Interface Configuration
The carrier board is shipped from the factory configured as follows:
•
Carrier board will respond to address modifier 2FH for CR/CSR
standard (A24) address space access. Base address of the CR/CSR
space is located in the CR/CSR Base Address Register (BAR).
Geographic addressing (per the VME64x specification) is used to set
the CR/CSR base address and also to determine the active CR/CSR
card locations within the VME64x chassis.
•
Carrier board must be programmed with the Short I/O base address
and address modifier within the Function 0 Address DEcoder
CompaRe (ADER) Register in CR/CSR space to define the base
address of the AVME9675A carrier & IP module registers.
•
Programmable Bit Set Register in the CR/CSR defaults to Short I/O
accesses disabled. Once enabled via the Bit Set Register the board
will respond to address modifier 29H or 2DH, as programmed in the
ADER. Registers on the carrier board plus the I/O and ID spaces on