Toshiba Perfecptione Installation And Maintenance Manual page 319

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TABLE
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PERCEPTIONeh,,
Tl/DS-1 DIGITAL TRUNK INTERFACE
SEPTEMBER 1991
PERCEPTIONeh,,
Tl/DS-1 DIGITAL TRUNK INTERFACE
TABLE OF CONTENTS
SUBJECT
PAGE
INTRODUCTION ..............................................................................................
1
General Information .......................................................................................
1
Requirements ................................................................................................
1
NDTU CONFIGURATION .................................................................................
2
PREREQUISITES AND PROCEDURES FOR INSTALLATION
...................... 2
General ..........................................................................................................
2
Specific Switch Settings ................................................................................
3
Installing NDTU .............................................................................................
6
Connecting to Channel Service Unit ..............................................................
6
Connecting to Another PBX Closer than 655 Feet ........................................
7
Front Panel LED Overview ............................................................................
7
Alarm and Status Conditions .........................................................................
8
Loop Back Procedure ....................................................................................
9
Cabling ..........................................................................................................
IO
TROUBLESHOOTING ......................................................................................
10
General ..........................................................................................................
10
AlTACHMENT A ..............................................................................................
21
FIGURE LIST
TITLE
PAGE
DS-1 CONNECTION TO DIGITAL NETWORK ................................................
1
DS-1 CONNECTION VIA CSU .........................................................................
1
DS-1 CONNECTION VIA CSU AND CHANNEL BANK ...................................
2
NDTU PRINTED CIRCUIT BOARD LAYOUT ..................................................
3
DS-1 CONNECTION TO DIGITAL NETWORK ................................................
6
REQUIRED CONNECTORS FOR DS-1 CONNECTION AT DISTANCES OF
LESS THAN 655 FEET (200 METERS) ........................................................
7
LED POSITIONS ..............................................................................................
8
RED ALARM .....................................................................................................
8
YELLOW ALARM .............................................................................................
8
BLUE ALARM ...................................................................................................
9
FALT LED .........................................................................................................
9
BSY LED ...........................................................................................................
9
FLOWCHART SYMBOLS .................................................................................
10
TABLE LIST
TITLE
PAGE
TRANSMIT EQUALIZER SETTING SWITCH ..................................................
4
S3-NDTU SLOT POSITION ..............................................................................
4