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Joined: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
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Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
In the ZIAD PHD Telecommunicator, I find five oddball symbols:
***** ** ** *** ***** *****
This is supposed to indicate a Phone ON HOOK (The top two rows are the handset, the bottom two rows are the base and the middle row is the switch hook. I know. Use your imagination)
***** * *
* * *** ***** *****
That is a phone OFF HOOK (handset, switch hook and base again).
*** * * ***
** ** * * *
This last character is for ZERO VOLTS (The top half of the figure is a 0, the bottom is the letter V. It indicates a dead line, the test leads not connected to anything etc.
*** * * * * * * ** **
This is a LONG PULSE INTERVAL. Could be caused by a hook flash or an on-hook in the middle of a dial string.
* * * * * * * * * This is supposed to look like an infinity sign and is an IN BAND TONE INDICATOR. Caused by non-dtmf tones (300-3000 hz) on the line for at least 500ms at a level of at least -24db.
Hope this helps.
Sam
"Where are we going and why are we in this hand basket?"
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Joined: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
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Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
Hmm.
Those did not come out the way I typed them in. Apparently the system Left Justified everything and stripped away the spaces. I'll try to scan the pages and email them to you.
Sam
"Where are we going and why are we in this hand basket?"
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Joined: Mar 2002
Posts: 411
Member
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Member
Joined: Mar 2002
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Sam came through, I've got the important pages now.
Thanks everyone!
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Joined: Jun 2004
Posts: 1,367
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Member
Joined: Jun 2004
Posts: 1,367 |
Sam stick to telephones and give up on ASCII Art
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