INDUSTRIAL I/O PACK SERIES APC8620/8621 PCI BUS CARRIER BOARD
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This board is physically protected with
packing material and electrically protected
with an anti static bag during shipment. It
is recommended that the board be visually
inspected for evidence of mishandling prior
to applying power.
The board utilizes static sensitive
components and should only be handled at
a static-safe workstation.
CARD CAGE CONSIDERATIONS
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.
IMPORTANT: Adequate air circulation must be provided to
prevent a temperature rise above the maximum operating
temperature.
The lack of air circulation within the computer chassis is a
cause for some concern. Most, if not all, computer chassis do
not provide a fan for cooling of add-in boards. The dense
packing of the IP modules to the carrier board alone results in
elevated IP module and carrier board temperatures, and the
restricted air flow within the chassis aggravates this problem.
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.
BOARD CONFIGURATION
The carrier board is plug-and-play compatible and, as such,
its board addresses are automatically assigned by the system
auto-configuration routine upon power-up. The base address of
the carrier board’s configuration registers in memory space and
I/O space is assigned. In addition, the base address of the IP
modules and carrier board registers are assigned in 32-bit
memory space.
Power should be removed from the board when installing IP
modules, cables, termination panels, and field wiring. Refer to
Mechanical Assembly Drawing 4501-672 and your IP module
documentation for specific configuration and assembly
instructions.
Interrupt Configuration
No hardware jumper configuration is required. All interrupt
enabling, and status are configured via programmable registers
on the carrier board (see Section 3 for programming details). The
carrier board passes interrupt requests from the IP modules to
the PCI bus. Refer to the IP modules for their specific
configuration requirements.
CONNECTORS
Connectors of the APC8620 carrier consist of five (three for
APC8621) carrier IP module field I/O connectors, five (three for
APC8621) IP module logic connectors, and one PCI bus interface
connector. These interface connectors are discussed in the
following sections.
Carrier Field I/O Connectors (IP modules A through E)
Field I/O connections are made via 50 pin ribbon cable
connectors A, B, C, D, and E (A, B, and C for APC8621) for IP
modules in positions A through E (A through C for APC8621). IP
module assignment is marked on the board for easy identification
(see IP location drawing 4501-671 or 4501-676 for physical
locations of the IP modules). Flat cable assemblies and
Acromag termination panels (or user defined terminations) can be
quickly mated to the field I/O connectors. Pin assignments are
defined by the IP module employed since the pins from the IP
module field side correspond identically to the pin numbers of the
50 pin connectors.
Carrier field I/O connectors A through E (A through C for
APC8621) are industry standard 50-pin low profile headers (male)
with short ejector latches (no ejector latches for APC8621) and
they mate to ribbon cable connectors (3M Type P/N 3425-6600).
IP Field I/O Connectors (IP modules A through E)
The field side connectors of IP modules A through E (A
through C for APC8621) mate to AMP 173280-3 connectors P4,
P5, P9, P12, and P15 (P3, P6, and P9 for APC8621)
respectively, on the carrier board. IP location is silk-screened on
the board for easy identification. Field and logic side connectors
are keyed to avoid incorrect assembly.
The AMP 173280-3 connectors mate to AMP 173279-3
connectors (or similar) on the IP modules. This provides
excellent connection integrity and utilizes gold plating in the
mating area. Threaded metric M2 screws and spacers (supplied
with Acromag IP modules) provide additional stability for harsh
environments (see Drawing 4501-672 for assembly details).
Pin assignments for these connectors are made by the
specific IP model used and correspond identically to the pin
numbers of the front panel connectors.
IP Logic Interface Connectors (IP modules A through E)
The logic interface sides of IP modules A through E (A
through C for APC8621) mate to AMP 173280-3 connectors P6,
P7, P10, P13, and P16 (P4, P7, and P10 for APC8621),
respectively, on the carrier board. IP location is silk-screened on
the board for easy identification. Field and logic side connectors
are keyed to avoid incorrect assembly.
The AMP 173280-3 connectors mate to AMP 173279-3
connectors (or similar) on the IP modules. This provides
excellent connection integrity and utilizes gold plating in the
mating area. Threaded metric M2 screws and spacers (supplied
with Acromag IP modules) provide additional stability for harsh
environments (see Drawing 4501-672 for assembly details).
Pin assignments for these connectors are defined by the IP
module specification and are shown in Table 2.1.
IP Logic Strobe Connectors
Each IP module has an uncommitted Strobe signal on the
logic interface connector (pin 46). The Strobe signal may be
used as an optional input or output from the IP module. On the
APC8620 the Strobe signals for each of the five IP modules are
routed on the printed circuit board to the location just above the
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