Comtech EF Data CDM-Qx Dokumentacja Pobierz pdf (Strona 117)

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision 7

Front Panel Operation MN/CDMQX.IOM

5–51

IF LOOPBACK

I/O LOOPBACK

Figure 5-3. Loopback

5.6.2 TEST: BIST

BIST: BERT-Config BERT-Mon

BERT-Control (◄ ►,ENT)

Select BERT-Config, BERT-Mon, or BERT-Control using the ◄ ► arrow keys, then press

ENTER

5.6.2.1 TEST: BIST Æ BERT-Config

BERT Config: Tx=ON Rx=ON

Tx-Pat=2047 Rx-Pat=2047

If the selected slot is Tx, the Rx parameters are not selectable, and vice-versa. Note the BERT

generator resides at the Tx side while the BERT monitor resides at the Rx side. This menu allows to

turn ON/OFF either the BERT generator or monitor and selects the BERT pattern as the user may

desire. The BERT patterns supported are Space, Mark, 1:1, 1:3, 63, 511, 2047, 2047R (or 2047

alternate), MIL-188, 2^15-1, 2^20-1, and 2^23-1.

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Comtech EF Data CDM-Qx Dokumentacja Strona 117