Справочник Пользователя для Emerson PMPPC7448

PmPPC7448 User’s Manual

This chapter describes the physical layout of the boards, the setup process, and how to 
check for proper operation once the boards have been installed. This chapter also includes 
troubleshooting, service, and warranty information.

Before you begin the setup process, please remember that electrostatic discharge (ESD) 
can easily damage the components on the PmPPC7448 hardware. Electronic devices, espe-
cially those with programmable parts, are susceptible to ESD, which can result in opera-
tional failure. Unless you ground yourself properly, static charges can accumulate in your 
body and cause ESD damage when you touch the board.

Caution:

Use proper static protection and handle PmPPC7448 boards only when absolutely 
necessary. Always wear a wriststrap to ground your body before touching a board. Keep 
your body grounded while handling the board. Hold the board by its edges–do not touch 
any components or circuits. When the board is not in an enclosure, store it in a static-
shielding bag.

To ground yourself, wear a grounding wriststrap. Simply placing the board on top of a 
static-shielding bag does not provide any protection–place it on a grounded dissipative 
mat. Do not place the board on metal or other conductive surfaces. 

PMPPC7448 CIRCUIT BOARD

The PmPPC7448 is a fourteen-layer circuit board that conforms to the IEEE 1386 Common 
Mezzanine Card (CMC) standard. It has the following physical dimensions:

Table 2-1:

2.913 in. 
(74 mm)

5.866 in. 
(149 mm)

0.323 in. (I/O area, 0.524 in.)
(8.2 mm, I/O area is 13.5 mm)

0.007 in. 
(1.9 mm)