Cisco Systems A900-IMA16D - ASR 900 16 Port T1/E1 I/F Module Req Patch Pan

Ethernet Interface ModulesThe Cisco ASR 900 Ethernet interface modules are designed to give customers flexibility and value. All Ethernet interface modules share a common core that supports time-stamping on the module for Y.1731 operations administration and maintenance (OAM) delay measurement functions to achieve precise results for one-way and two-way delay measurement. The modules also provide time-stamping functions for the IEEE 1588-2008 protocol. These time stamps help ensure that the Cisco ASR 900 Series Routers achieve outstanding results when deploying IEEE 1588-2008 protocols for frequency and phase synchronization. Not all customers will deploy IEEE 1588-2008 for synchronization therefore the Ethernet interface modules also support input and output frequency synchronization using synchronous Ethernet (SyncE).The Cisco ASR 903 Router has six interface module slots. There are two types of interface module slots. Four slots support all of the available interface modules. The remaining two slots support only the Gigabit Ethernet and TDM Interface modules the 10 Gigabit Ethernet modules are not supported in these slots. One of these two slots is limited to a maximum of seven Gigabit Ethernet ports with the Cisco ASR 900 Route Switch Processor (RSP1).