当检测到一个潜在的更新目标时，联邦系统避免使用块读取特性，以维护远程游标的位置。

When it detects a potential update target, the federated system avoids using the block fetch feature in order to maintain the remote cursor position.

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需要通过虚拟网络计算 (VNC) 支持来进行远程维护，特别是当系统没有显示器或键盘时。

Virtual Network Computing (VNC) support is required for remote maintenance, especially if the system has no monitor or keyboard.

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该系统经过改进，也可用在其他设备的远程维护。

The system can also be improved to use for remote maintenance of other equipments.

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