Figure C-1. Dsx Mon, Tx To Customer; Front Panel Dsx And Mux Mode Test Access; General; Dsx Mode Test Access - ADTRAN HDSL4 Installation And Maintenance Manual

Front Panel DSX and MUX Mode Test Access

GENERAL

Figure C-1 through Figure C-3
Figure C-7 are MUX fed modes of operation. From the Provisioning menu
25), Network Source is used to choose either MUX fed or DSX fed. When performing intrusive
MUX mode testing, the equipment jack on the front panel can be configured to access the
signal going to the Network or the Customer. The Equipment Jack option on the loopback and
Test Commands screen
customer. Every time the HTU-C is power-cycled, it will default to the Customer direction.

DSX MODE TEST ACCESS

DSX MON, Tx to Customer

The Rx of the BERT receives data from the
jack impedance of 432 ohms and comes from the Backplane Network T1 DSX (the data that
would go toward the customer). The
The H4TU-C must be provisioned for the Out-of-Service
Maintenance service state when intrusive bantam jack testing is
being performed.
61223HDSL4L2-5C
Appendix C
are DSX-1 fed modes of operation, and
(Figure 23 on page 31) is used to configure this jack for the network or
BERT TX
TX
X
RX
T1 BERT

Figure C-1. DSX MON, Tx to Customer

jack (Figure
TX MON
is not used. This test is non-intrusive.
NOTE
To MUX
From MUX
TX
To DSX
DSX
EQ
From DSX
RX
432 Ω
TX
To CUST
DSX
MON
From CUST
RX
432 Ω
Figure C-4 through
(Figure 16
C-1). This data has a monitor
on page
C-1