Specifications

Reference Guide 3-53
System Configuration and Operation Testing Voice Cross-Connects
Table 3-7. WAN Cross-Connect Test Screen Options
Tx ABCD BITS
The Transmit ABCD bit parameter has two options:
mon
(allowing you to observe the bit
pattern being sent on the transmit side of the line), and
set
(to choose a different pattern for
testing that portion of the circuit). Choosing
set
brings up a small four-character window at
the bottom of the screen, where you can type in a new pattern of ones and zeros.
Figure 3-40 shows a diagram of the test process. When Tx ABCD for w2-1 is set to
mon
, the
w2-1 column reflects the ABCD bits being sent out on w2-1. This pattern should be identical
to Rx ABCD on w2-2, unless the conversion table is used. When Tx ABCD for w2-1 is
optioned to
set
, users supplies a bit pattern of four 1s and 0s for the new ABCD bits. The Rx
ABCD stream from w2-2 is broken at circle #1, and the new pattern is inserted into the Tx
ABCD stream. The same applies for
mon
and
set
for w2-2. The bitstream will be broken at
circle 2.
Figure 3-40. Voice Test Diagram
Parameter User Options Default
Tx ABCD mon set mon
PATTERN off all 0 all 1 m_oos 1:1 1:7 lpbk 300Hz
1KHz 3KHz
off
MON Tx ABCD information only–no user options
MON Rx ABCD information only–no user options
CONVERSION information only–no user options
TYPE information only–no user options
WAN STATE information only–no user options
W
AN XCONN
R
x ABCD
1
2
N
etwork
W
AN 2-2
Rx ABCD
WAN 2-1
T
x ABCD
W
AN 2-2
Tx ABCD
WAN 2-1