| 1. | In the end , the pcb design and implementation of olt and onu are submit 最后,给出了olt和onu的pcb设计与实现。 |
| 2. | Onu optical network unit 光纤网路单体 |
| 3. | Onu : optical network unit 光纤网络单元 |
| 4. | The passivated catalyst was tested or characterized by onu autothermal apparatus , xrd , dta and bet 对钝化后的催化剂进行了onu自热测试和xrd 、 dta 、 bet等表征。 |
| 5. | Two groups of onus report and grant in turn , as the network load changes , olt converts the way of granting every onu 然后根据运营商的实际需要,提出另一种基于服务等级协议( sla )的算法sb - dba 。 |
| 6. | Only when olt receives the first few bits of the uplink burst of onu and achieves the bit synchronization can the onu signal be restored Olt必须在收到onu上行突发的前几个比特内实现比特同步,才能恢复onu的信号。 |
| 7. | Since the transmission loss from each onu to the olt receiver is different , there will exist a wide dynamic range in the received uplink optical power 每个onu到olt接收机的传输损耗不同,因此所接收到的上行光功率将存在较大的动态范围。 |
| 8. | The dissertation includes technique background of gpon , protocol summary , function architectures of olt and onu , dba ( dynamic band allocation ) algorithm and so on 本文概括描述了gpon技术的背景、标准协议的概述、系统中olt和onu的功能结构和动态带宽分配算法。 |
| 9. | Based on the comprehension of protocols of itu - t g . 984 and the analysis of many research results , we gives a solution of the architecture design for olt and onu in gpon system 在理解itu - tg . . 984系列协议的基础上,以及结合目前国际国内的研究成果,提出了gpon系统中olt 、 onu的结构设计方案。 |
| 10. | The epon network includes optical line terminal ( olt ) and optical network unit ( onu ) . onuses share the optical distribution network ( odn ) trunk fiber back to the central office Epon系统采用局端机( olt ) -用户端机( olt )两级结构,中间由无源光分配网络完成下行光功率分配和上行光耦合。 |