參數(shù)資料
型號： DS2196LN
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù)： 96/157頁
文件大小： 734K
代理商： DS2196LN
DS2196
96 of 157
16. ERROR INSERTION FUNCTION
An Error insertion function is available in each formatter of the DS2196 and is used to create errors in the
payload portion of the T1 frame in the transmit path. See Figure 21-7 for location. Errors can be inserted
over the entire frame or the user may select which channels are to be corrupted. Errors are created by
inverting the last bit in the count sequence. For example if the error rate 1 in 16 is selected, the 16
th
bit is
inverted. F-bits are excluded from the count and are never corrupted. Error rate changes occur on frame
boundaries. Error insertion options include continuous and absolute number with both options supporting
selectable insertion rates.
Transmit error insertion setup guideline.
1.
Enter desired error rate in the ERC register. Refer to table 16-1 for available
rates. Note: If ER3:0 = 0, no errors will be generated even if the constant error
insertion feature is enabled.
For constant error insertion set CE = 1 (ERC.4).
2A.
or
2B.
For a defined number of errors:
- Set CE = 0 (ERC.4)
- Load NOE1 & NOE 2 with the number of errors to be inserted
- Toggle WNOE (ERC.7) from 0 to 1, to begin error insertion
相關(guān)PDF資料
PDF描述
DS21Q43AT Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q43ATN Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q44 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q44T Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q44TN MICROSWITCH, SPDT, SIM ROLLER LEVER; Current, contact AC:5A; Force, operating:91.75gf; Travel, pre:16.0mm; Centres, fixing LxW:22.2mm; Temp, op. max:120(degree C); Temp, op. min:-40(degree C); Length / Height, external:9.25mm; Width, RoHS Compliant: Yes
相關(guān)代理商/技術(shù)參數(shù)
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