Motorola Laptop IH5 Manuel d'utilisateur Page 41

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Hardware Installation
http://www.motorola.com/computer/literature 1-21
1
Hardware Installation
The following sections discuss the placement of PMC mezzanine cards on
the MCPN750A baseboard and the installation of the complete
MCPN750A assembly into a CompactPCI chassis. Before installing the
MCPN750A, ensure that all header jumpers are configured as desired.
In most cases, PMC modules ordered with the baseboard are installed on
the MCPN750A at the factory and the order is shipped as a single unit. The
user-configured jumpers on the PMCs are accessible with the mezzanines
installed.
If it is necessary to install mezzanines on the baseboard, refer to the
following sections for a brief description of the installation procedure.
Note: the procedure assumes the MCPN750A has already been installed in
the chassis. If not, begin with Step 4.
!
Caution
Avoid touching areas of integrated circuitry; static discharge can damage
these circuits.
Installing PMC Modules on the MCPN750A SBC
One dual wide, one single wide or two single wide PCI mezzanine (PMC)
modules can be mounted on top of the MCPN750A baseboard. The
MCPN750A is designed to accept only +5V or Universal PMCs. Due to
pin current limitations, the MCPN750A can supply up to 4.5 amps to a
single PMC on each of the +3.3V and +5V supplies. The MCPN750A can
supply a maximum of 500mA at +12V and -12V to each PMC. Refer to the
table on page 1-31 for the total current available to PMC’s and transition
modules. To install a PMC module, refer to Figure 1-9 PMC Carrier Board
Placement on MCPN750A, and proceed as follows:
1. Attach an ESD strap to your wrist. Attach the other end of the ESD
strap to the chassis as a ground. The ESD strap must be secured to
your wrist and to ground throughout the procedure.
2. Perform an operating system shutdown. Turn the AC or DC power
off and remove the AC cord or DC power lines from the system.
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