Delta AH02HC-5A, Hardware Manual

Page: 17 / 229

AH500 Hardware Manual
2.1 AH500 Hardware Framework
2.1.1 Component Parts of the AH500 Hardware
A complete AH500 system consists of a main backplane, extension backplanes, power supply
modules, a CPU module, I/O modules, and extension cables. The basic AH500 system is illustrated
below.
7 backplanes
．
．
．
．
．
．
2.1.1.1 Necessary Components
A complete AH500 system consists of the following four necessary components.
z
Main backplane
A CPU module and other modules are installed on a main backplane which provides the function
of connecting buses. The main backplanes are divided into four types according to the number of
I/O modules installed on the main backplanes. These four types are four-slot main backplanes,
six-slot main backplanes, eight-slot main backplanes, and twelve-slot main backplanes. Besides,
a CPU module installed on a main backplane can be replaced by a RTU module on a control
network. Please notice that there is at least one CPU module on a control network.
POWER CPU I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7
2-2