Test Branch - Paradyne Comsphere 3920Plus Installation And Operation Manual

VF Thresholds
Frequency Offset
Phase Jitter
Phase Hits
Impulse Hits
Gain Hits
Drop Outs

Test Branch

The Test branch of the Top-Level menu allows you to initiate various modem tests. Use these tests
if you are having data communication problems, such as periodic character loss, random errors, or
constant format errors. By the process of elimination, you can usually isolate the fault in your
system.
There are six selections under Test: Abort, Self (Self-Test), Loc Analog Loop (Local Analog
Loopback), Rem Digital Loop (Remote Digital Loopback), Loc Digital Loop (Local Digital
Loopback), and Pattern. The only tests that can operate concurrently on a single modem are Pattern
with a Local Analog Loopback and Pattern with a Remote Digital Loopback. If any test is
operating, besides the two combinations just mentioned, it must be canceled before starting another
test.
The Test branch only initiates and cancels tests. If parameters need to be set, refer to the Tests
section in Chapter 4.
Status Configure
3920-A2-GN31-10
Table 3-8
(2 of 2)
Valid Ranges for VF Thresholds
Valid Ranges
1 Hz to 15 Hz
1 degree to 45 degrees
1 to 255 hits
1 to 255 hits
1 to 255 hits
1 to 255 dropouts
"Status"
PList Control
Abort Self Loc_Analog_Loop
April 1995
Default Values
Above 4 Hz
Above 9 degrees
20 hits per 15 minutes
20 hits per 15 minutes
20 hits per 15 minutes
20 dropouts per 15 minutes
Call_Setup Tlk/Data
SubHS
Test
Rem_Digital_Loop
Port
Select
DCP Operation
(Mux Disabled
only)
Security Remote
Loc_Digital_Loop Pattern
Port Port
Select Select
3-53