Hardware Modules - ABB REC 561 User Manual

1MRK 580 148-XEN
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2 Hardware modules

Construction and hardware
characteristics - REC 561
Fig. 1 Hardware structure
The basic configuration of the terminal consists of these modules:
• Main processing module. All information is processed or passed
through this module before it is sent from the terminal. The module
is used for configuration of the terminal and storage of all its set-
tings. It is also used for communication (position S10).
• Signal processing module with up to 12 digital signal processors
used for all measuring functions (position S10SPM).
• One optical serial communication module, intended for remote fibre
optic LON communication. The module is placed in a slot at the rear
of the Main processing module.
• One Binary input module with 16 binary inputs (position S12).
• One Binary output module with 24 single output relays or 12 com-
mand output relays (programmable) (position S14).
• Power supply which contains a DC/DC converter, which provides
full isolation between the terminal and the external battery system.
The power supply consists of a two stage converter which gives a
very wide input-voltage range, from 36 V up to 300 V (position
S40).
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