ABB SPA-ZC21
The ABB SPA-ZC21 module is an interface unit produced by ABB for connecting SPACOM devices to the fiber optic SPA bus. It primarily acts as a bridge, converting optical signals on the SPA bus into electrical signals that SPACOM devices can recognize, and vice versa. In simple terms, this module is to convert optical signals and electrical signals, so that different devices can communicate with each other.
Product parameters and specifications
Interface type: SPA bus (optical fiber) and RS485 or SPA (+5V) electrical signal
Installation method: Insert it into the rear panel of the host
Compatibility: Can be used with any SPACOM device equipped with a 9-pin D-connector
Other: Connect to the SACO data communication and reporting unit with optional installation accessories
Product characteristics
Connection function: The auxiliary equipment of the substation is connected to the fiber SPA bus
Strong anti-interference ability: highly resistant to electromagnetic interference
Easy to install: Easy to install
Product application
The SPA-ZC21 module is mainly used in power systems to connect various secondary equipment, such as protective relays, measurement and control units, etc. Through this module, these devices can be connected to the optical fiber SPA bus to achieve centralized data collection and transmission, thereby improving the reliability and automation of the system.
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