Delta AH500 series Manual download pdf (Page 35)

Chapter 2 Installing Hardware

2.1.3 Installing Modules on an Extension Backplane

For an extension backplane, the first slot from the left is for a power supply module, and the slots following the

first slot are for extension modules. Only digital input/output modules, analog input/output modules,

temperature measurement modules, and AH10SCM-5A can be installed on an extension backplane. Besides,

users do not need to arrange the extension modules in a specific order.

 Extension backplane

2.1.4 Connecting a Main Backplane to an Extension Backplane

A main backplane can be connected to an extension backplane through the interface on the left side of the

main backplane, the interface on the left side of the extension backplane, and a Delta extension cable. For a

CPU module or a RTU, a main backplane can be connected to seven extension backplanes at most through

the interfaces on the backplanes. Therefore, if there is a CPU module and there are several RTUs, not only the

CPU module can be connected to seven extension backplanes, but also every RTU can connect to seven

extension backplanes.

There are two ports on an extension backplane. The upper port is used to connect to a superior backplane, and

the lower port is used to connect to an inferior backplane.

2.2 Warning

 An AH500 system only supports the horizontal installation, and a power supply module has to be installed

on the left-most side of a backplane.

 Before a module is installed, please make sure of the size of the module and that of a backplane. To

prevent the misestimate from resulting in insufficient installation space, the size of the connector of a

communication cable, and the room which needs to be reserved have to be taken into account.

 Please make sure that the work environment conforms to the specifications for the products. It is

necessary to take account of the basic temperature/humidity control and the dust/corrosion prevention.

 The electromagnetic interference will result in the wrong action of the whole system. Therefore, users have

to do EMC design carefully. Please refer to chapter seven in this manual for more information related to

EMC standards.

 If the specifications for the components such as screws and washers are noted specifically in the manual,

please use the components conforming to the specifications.

 If a cable is connected to a communication port, please make sure that the connector of the cable is joined

to the port on the module properly.

 A backplane has to be mounted on a plane stably instead of being just set on the plane. After it is installed,

please make sure that it is fixed on the plane.

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Delta AH500 series Manual Page 35