There are disadvantages of termination as well. Termination increases load on the drivers, increases installation complexity, changes biasing requirements and makes system modification more difficult.
使用终端电阻也有不利的一面，它（额外地）加重驱动器的负载，增加装置的复杂性，改变偏置条件和造成系统日后修改困难更大。
Complexity and high installation and maintenance costs are a reality of today's computer systems.
复杂性以及高昂的安装和维护费用是今天的计算机系统中存在的一个事实。
Ease of installation and upgrade are important too, and unwanted features must be avoided to keep cost and complexity in check.
容易安装和升级也很重要，必须去掉不需要的功能以控制成本和复杂性。
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