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3 Chapter 1 Introduction
Passive backplanes
The AWS-8248 offers two types of passive backplanes, the PCA-6108C
and the PCA-6107P2. They allow you to run your industrial applications
from a variety of full-featured CPU cards.
Figure 1.1: The PCA-6108C and PCA-6107P2 passive backplanes
The backplanes are formed from four-layer PCBs with ground and power
planes to reduce noise and power-supply impedance. They have LED
power indicators for +5 V, +12 V, -5 V and -12 V.
Advantech's PCA-6107P2 passive backplane can be installed into the
AWS-8248TP. It contains two PCI-compatible slots, four PC/AT-compat-
ible (ISA-bus) slots and one dedicated slot for a CPU card. Three power-
connectors are also included in the PCA-6107P2.
Alternatively, Advantech's PCA-6108C passive backplane can be
installed into the AWS-8248T. It contains eight PC/AT-compatible (ISA-
bus) slots, termination resistors for high-speed signals and terminal block
connectors to supply power from the board.
Convenient work drawer
The AWS-8248's "work drawer" card cage slides out in a snap for
reduced MTTR. It makes adding or exchanging plug-in cards and chang-
ing power supplies quick and easy. Our standard PC/AT compatible pas-
sive backplane lets you run your industrial applications from a variety of
full-featured CPU cards. and easy overclocking of frequency and Vcore
voltages all through the BIOS Specifications.