參數(shù)資料
型號: PEF2015
廠商: SIEMENS A G
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Mini IOM-2 Controller MICO
中文描述: SPECIALTY TELECOM CIRCUIT, PDSO28
文件頁數(shù): 14/84頁
文件大小: 1568K
代理商: PEF2015
PEF 2015
Functional Description
Semiconductor Group
14
12.97
2
Functional Description
2.1
Configurable Interface CFI
The integrated CFI is a one port serial interface. It comprises two serial data lines
(upstream DU and downstream DD), a data clock input or output DCL and a frame sync
input or output FSC in IOM-applications. The clock frequency is either equal to the data
rate or twice the data rate. The CFI can be configured to data rates up to 8.192 Mbit/s.
The CFI is typically used in IOM-2 or SLD configuration to connect layer-1 devices.
Figure 4
shows the IOM-2 Interface structure in Line Card Mode:
Figure 4
IOM
-2 Frame Structure with 2.048 Mbit/s Data Rate
2.2
Serial PCM Interface
The PCM interface formats the data transmitted or received at the PCM-highways. It
consists of one port comprising a data receive (RxD), a data transmit (TxD) and an
output tristate indication line (TSC). The PCM interface is supplied with a frame signal
(PFS) and a PCM clock (PDC).
Data rates up to 8.192 Mbit/s are supported. To properly clock the PCM interface a PDC
signal with a frequency equal or twice the data rate has to be applied to the MICO.
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