EXFO FTB-1, User Manual

Page: 179 / 675

Test Setup - Test Configurator, Timer, and System
NetBlazer
167
ISDN PRI - ISDN Settings
ISDN PRI - ISDN Settings
From the
Test
menu, tap
Setup
,
Test Configurator
, the test block, and the
ISDN Settings tab.
D-Channel

Channel indicates the channel selected to establish the ISDN signalling
path. The default D-Channel for DS1 is
24
and for E1 is
16
.

Rate represents the rate at which data is exchanged. Depending on the
network, the options available are
56K
and
64K
(default).

HDLC Mode represents the bit inversion of the signal:
Normal
(default) or
Inverted
.

D-Channel indicates the status of the D-Channel. A green arrow
pointing up indicates that the link is up (
L2 - Multiple frame
established ) and a red arrow pointing down indicates that the link is
down.
B-Channel
Note:
The following B-Channel settings apply to all data calls.

Data Call Pattern allows to select the pattern: PRBS9 ,
PRBS11
(default),
PRBS20
,
1111
,
1100
,
1010
,
0000
,
1in8
,
1in16
,
2in 8
,
and 3in24 .

Invert
check box when selected (cleared by default) inverts the test
pattern meaning that every 0 will be changed for 1 and every 1 for 0.
For example, the pattern 1100 will be sent as 0011.

RX Pattern Analysis check box when selected enables the monitoring
of the test pattern for all data calls.

BER Pass/Fail Verdict allows to enable bit error pass/fail verdict by
selecting either
Bit Error Count
or
Bit Error Rate
(default) or
Disabled .