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Chapter 3. Operation
61200771L1-1 NxT1 HSSI/V.35 Module User Manual 35
T
X
PRM
Controls the sending of performance report messaging (PRM) data
on the facility data link (FDL). The PRM data continues to be col-
lected even if
XMIT PRM is turned off (possible only with ESF for-
mat). Choose either
O
N
or O
FF
.
LBO
Write security: 2; Read security: 5
Selects the Line Build Out (LBO) for the network interface. The
LBO setting determines the amplitude of the transmitted signal.
For short haul (intra-building) applications, choose from the ft
options. For long haul (out of plant) applications, choose from the
dB options. When you select this item, a list of choices displays.
Select the appropriate option.
T
EST
Write security: 3; Read security: 5
These options initiate different types of tests and display test results.
P
RT
Displays the port number.
L
OC
LB
Write security: 4; Read security: 5
Causes loopback on near-end (local) port (see Figure 3-3). The fol-
lowing options are available:
Figure 3-3. T1 Loopback Test Diagram
IMUX M
ENUS
Read Security: 5
Contains the inverse muxing configuration parameters for the NxT1 HSSI
Option Module.
L
INE
Metallic loopback
P
AYLD
Payload loopback - framing and
clocking are regenerated
T1 Port
DS1
NI CSU
Payload Loopback
Line Loopback