论文部分内容阅读
在选购光同步数字传输网网元设备时 ,用户应以使用要求为基本出发点 ,以产品质量为先决条件 ,选择适合自己需要、性价比高的产品 ;要选择符合网络自身的特点 ,并可将运行的电路接入 ,既满足电路规划 ,又有支路接入能力的产品。要把系统配置的灵活性、平滑升级的可行性、设备长期使用的可靠性作为选型的重要原则。
In the purchase of optical synchronous digital transmission network element equipment, the user should use the request as the basic starting point to product quality as a prerequisite for the choice of their own needs, cost-effective products; to choose to meet the network’s own characteristics, and can be Run the circuit access, both to meet the circuit planning, but also branch access capabilities of the product. To system configuration flexibility, the feasibility of a smooth upgrade, the long-term reliability of equipment as an important principle of selection.