Textron Greenlee Communications DataScout 10G, User Manual

Page: 84 / 115

82
connect. The call ID# is 2-99 for VOICE calls, 122-180 for DATA calls and 181-250 for
audio calls use the status screen to determine the ID# and B-Channel of the call you
wish to disconnect.
Multiple B-Channel Calls
Your test set test system can terminate up to 23 calls (both voice and data) on all B-
Channels.
If you have more than one call connected use the “
B-Chan Voice
” selector
to change the B-Channel to talk over for voice calls and the B-Chan BERT to select
the B-Channel you would like to BERT for data calls. You can only talk on one voice
call and BERT on one data call at-a-time.
While multiple CALLs (up to 23) can be established only ONE call at a time can be
running BERT and only ONE call, at a time, can be routed to the Butt-set interface.
Use the "B-chan" button to step through and select any/all CONNECTED calls through
the BERT screen or through the Butt-set interface.
Q.931 Decodes & Status Window
The middle screen (Call Progress Message) logs all link status, call progress and
Q.931 decode messages. If you want more information on the cause code tap on the
cause code to decode and display the Q.931 cause codes in simple readable text.
Protocol Decode Messages
►
Layer 2 failure
– "D-channel Not Established"
►
Q.931 cause codes
– Protocol Decode & translation
Hot-button access to ASCII description is achieved by tapping on the cause code to
display a simple text description of Q.931 cause codes.
Clear CALL Status & BERT
Tap Clear Call Status to clear the Call Progress Message window (Call History). To
clear Bit errors, tap the CLEAR button. Note the current status is always displayed on
the bottom of the screen.
List of Common Problems
►
Cabling open/shorted
– can be verified by checking Layer-1 with DS1
►
Layer-1 DS1 Timing (clocking)
– Framing (must be ESF) and Coding (must
be B8ZS). Use DS1 to verify OOF/Freq/Level /B8ZS