DSX Mode Test Access HDSL2 for General Distribution Installation and Maintenance Practice
C-2 61223HDSL2L2-5B
Figure C-1. DSX MON, Tx to Customer
DSX MON, Rx from Customer
The Rx of the BERT receives data from the RX MON jack (Figure C-2). This data has a monitor
jack impedance of 432 ohms and comes from the customer originated data. The
BERT TX is not
used. This test is non-intrusive.
Figure C-2. DSX MON, Rx from Customer
DSX EQ, Tx to Customer, Rx from Customer
The Tx of the BERT goes to the TX EQ jack, and the Rx of the BERT goes to the RX EQ jack
(Figure C-3). The
TX EQ data from the BERT is sent to the customer. The RX EQ data to the
BERT is data from the customer. The
MON jack TX and RX are 432 ohm replicas of the EQ TX
and
RX direct connections. This test is intrusive, as it connects the EQ jacks directly to and
from the customer data.
TX
DSX
EQ
RX
TX
DSX
MON
RX
X
From DSX
To DSX
From CUST
To CUST
From MUX
To MUX
TX
RX
T1 BERT
432 Ω
432 Ω
TX
DSX
EQ
RX
TX
DSX
MON
RX
X
From DSX
To DSX
From CUST
To CUST
From MUX
To MUX
TX
RX
T1 BERT
432 Ω
432 Ω
