ADTRAN Total Access 3000 Specifications download pdf (Page 42)

Total Access 3000/3010 T1-OR/NIU Installation and Maintenance Practice

A-6 61181310L2-5D

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 A-7). The Tx of the BERT is then substituted for the data that the T1-OR/

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

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

intrusive. Via the

Tes t 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 A-7. MUX EQ, Tx to Customer, Rx from Customer

DSL

DSX/DS1

ALM

B8ZS/ALM

(YEL) (GRN)

ESF/ SF

(YEL) (GRN)

LBK

T1 BERT

From DSX

To DSX

From CUST

To CUST

From MUX

To MUX

432 Ω

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ADTRAN Total Access 3000 Specifications Page 42