ADC H2TU-C-231 Dokumentacja Pobierz pdf (Strona 87)

HDSL2 for General Distribution Installation and Maintenance Practice MUX Mode Test Access

61223HDSL2L2-5B C-5

MUX EQ, Tx to Customer, Rx from Customer

The Tx of the BERT is connected to the EQ TX jack, and the Rx of the BERT is connected to the

RX EQ jack (Figure C-7). The Tx of the BERT is then substituted for the data that the H2TU-C

sends to the customer. The Rx of the BERT receives data directly from the customer. The

MON

and RX jacks are 432 ohm impedance copies of the EQ jack TX and RX. This test is

intrusive. Via the

Test screen, ensure that the equipment jack is in the To Customer mode. In

the

To Customer mode, AIS (unframed all 1’s) is sent in the network direction.

Figure C-7. MUX EQ, Tx to Customer, Rx from Customer

DSX

MON

T1 BERT

From DSX

To DSX

From Selected CUST

To Selected CUST

From MUX

To MUX

432 Ω

1 2 ... 82 83 84 85 86 87 88 89 90

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ADC H2TU-C-231 Dokumentacja Strona 87