INDUSTRIAL I/O PACK SERIES ACPC8625 CompactPCI BUS CARRIER BOARD
___________________________________________________________________________________________
- 11 -
interrupt is recognized by the carrier board and is recorded in the
carrier board’s Interrupt Pending Register.
A carrier board pending interrupt will cause the board to pass
the interrupt to the CompactPCI bus provided the Interrupt Enable
bits of the carrier’s Status Register have been enabled (see section
3 for programming details). The PC interrupt request line assigned
by the system configuration software will then be asserted. The
CPU will respond to the asserted interrupt line by executing the
interrupt service routine corresponding to the interrupt line asserted.
The interrupt service routine is executed only if the IRQ on the
CPU’s 8259 interrupt controller has been previously unmasked (see
section 3 for programming details).
The interrupt service routine should respond to an interrupt by
accessing IP Interrupt Select (INTSEL*) space. The interrupt
service routine should also conclude the interrupt routine by writing
the “End-Of-Interrupt” command to the CPU’s 8259 interrupt
controller (see section 3 for more details).
Power Failure Monitor
The carrier board contains a 5 volt undervoltage monitoring circuit
which provides a reset to the IP modules when the 5 volt power
drops below 4.27 volts typical / 4.15 volts minimum. This circuitry is
implemented per the Industrial I/O Pack specification.
Power Supply Fuses
The +5V, supply lines to each of the IP modules are individually
fused with a current limit of 2 amp imposed by the fuses. In
addition, the +12, and -12 supply lines to each of the IP modules
are individually fused with a current limit of 1 amp imposed by the
fuses. A blown fuse can be identified by visible inspection or by use
of an ohm meter. The fuses are located under each IP slot near the
“logic connectors” (see figure 4501-788).
Power Supply Filters
Power line filters are dedicated to each IP module for filtering of
the +5, +12, and -12 volt supplies. The power line filters are a “T”
type filter circuit comprising ferrite bead inductors and a feed-
through capacitor. The filters provide improved noise performance
as is required on precision analog IP modules.
5.0 SERVICE AND REPAIR
SERVICE AND REPAIR ASSISTANCE
Surface-Mounted Technology (SMT) boards are generally
difficult to repair. It is highly recommended that a non-functioning
board be returned to Acromag for repair. The board can be
damaged unless special SMT repair and service tools are used.
Further, Acromag has automated test equipment that thoroughly
checks the performance of each board. When a board is first
produced and when any repair is made, it is tested, placed in a burn-
in room at elevated temperature, and retested before shipment.
Please refer to Acromag's Service Policy Bulletin or contact
Acromag for complete details on how to obtain parts and repair.
PRELIMINARY SERVICE PROCEDURE
Before beginning repair, be sure that all of the procedures in
Section 2, Preparation For Use, have been followed. Also, refer to
the documentation of your carrier board to verify that it is correctly
configured. Verify that there are no blown fuses. Replacement of
the carrier and/or IP with one that is known to work correctly is a
good technique to isolate a faulty board.
CAUTION: POWER MUST BE TURNED OFF BEFORE
REMOVING OR INSERTING BOARDS
Acromag’s Applications Engineers can provide further technical
assistance if required. When needed, complete repair services are
also available from Acromag.
6.0 SPECIFICATIONS
PHYSICAL
Physical Configuration..................CompactPCI 5 V Board
Length.......................................... 9.187 inches (233.3 mm)
Width........................................... 6.299 inches (160.0 mm)
Board Thickness....................….. 0.062 inches (1.59 mm)
Max Component Height............... 0.550 inches (13.97 mm)
Max Component
Height Under IP Modules.............0.180 inches (4.57 mm)
Recommended Card Spacing.......0.800 inches (20.32 mm)
Connectors:
J1 (CompactPCI Bus)..................PCI Specification Version 2.1
& CompactPCI Specification
PICMG 2.0 R2.1 5 V Board.
Type “A” right-angle female
connector, 110 contacts with
upper shield.
Note: A 5 volt coding key is inserted into J1 connector to
allow this card to be plugged into a 5 volt backplane
system only. (Key Color: Brilliant Blue)
J4, J5 (CompactPCI Field I/O).....CompactPCI Specification
PICMG 2.4 R1.0. IP field
I/O mapping to CompactPCI
field I/O. Type “B” right-angle
female connector, 110
contacts with upper shield.
Note: J4 and J5 are not compliant with Computer
Telephony Specification.
(H.110 and Telephony I/O)
P1,3,5, 7 (IP Field I/O)..................50-pin male plug header
(AMP 173280-3 or equivalent).
P2,4,6, 8 (IP Logic).......................50-pin male plug header
(AMP 173280-3 or equivalent).
Power:
Board power requirements are a function of the installed IP
modules. This specification lists currents for the carrier board
only. The carrier board pr5V, +12V and -12V power to
each IP from the CompactPCI bus. Each IP module supply line
is individually filtered and fused.
Fuses: +5 volts, 2 amp per slot
±
12 volts, 1 amp per slot
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
