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The DS0
Diagnostics Screen
DS0 DIAGNOSTICS
SYN NNS YEL AIS NLB BPV CRC
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N
DS0 Channel Number :24
S
Select Test Pattern:511
M
Test Mode
Cumulative Errors
Tested Data Blocks
Circuit Delay result:
RESETS TEST RESULTS.
R
Reset Test Result Display
I
Initiate Test
T
Terminate Test
E
Exit
Select Option
OPERATION
The Supervisory terminal can be used to control several channel-level
(DS0) diagnostic tests. Figure 3-16 illustrates the functions available
through this screen. Only one test, on one of the 24 channels, can be
performed at a time. A DS0 diagnostic affects only the selected channel.
All DS0 diagnostic functions can be selected only via
the Supervisory terminal, and those selected for the
remote CSU must use out-of-band communications.
In Unframed Mode, the DS0 DIAGNOSTICS screen is
removed from the MAIN MENU (the entire band-
width is used for customer payload, so the signal is not
channelized, DS0s do not exist, and DS0-level diagnos-
tics do not apply).
DS0 Channel Number
This function selects and displays the channel (1 to 24) on which the test
is to be performed. The channel number selection is retained when you
exit this screen, and when the CSU is reset or powered down. To use this
function, press N and then enter the channel number.
Always select the same channel number at both CSUs.
TSY TNS O'S LAD
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:LOOPBACK
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LOOPBACK OFF
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CSU : ***
FIGURE 3-16. DS0 DIAGNOSTICS SCREEN
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3-28
CAUTION
NOTE
CAUTION
DD-MMM-YY HH:MM
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ST
RT
LOR
DS0LB
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