Motorola MCPN750A Benutzerhandbuch

Hardware Installation

http://www.motorola.com/computer/literature

1-21

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.

Avoid touching areas of integrated circuitry; static discharge can damage 
these circuits.

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 

 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.