Vertical Edge 120 Specifications Page 87
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DX-120 Installation and Maintenance Manual TECHNICAL PROBLEM SOLUTIONS
Static and / or noise can be heard during a conversation (continued)
Telco problem If static/noise is heard on CO lines only:
1) Determine if other extensions also hear the
noise/static.
If other extensions also hear the noise/static:
2) Determine if other CO lines affected (ie.e.,
either several or only a few).
3) Disconnect CO line at interface point and
connect Lineman's test set to the same point of
connection ahead of the system.
If noise/static persists:
4) Contact the local servicing telephone company
and request repair.
If noise/static can be isolated to the DX-120
equipment:
5) Verify which CO line ports are affected (which
CO ports seem to have noise/static).
6) Replace interface modules as required.
Programming lost
or changed.
Digital Executive
Telephone display.
Intended
programming
change.
Check with system administrator for incidental
changes made.
PC-DBA
programming
changes Send All
operation.
When using PC-DBA to make customer database
changes you must take special precaution not to
overwrite existing data with residual PC-DBA
working directory values. When using PC-DBA to
update any database, it is highly recommended to
perform the function Receive All prior to making any
specific database changes to assure that the
working directory database matches the database in
use at the customer site.
Bad Memory battery If power fluctuations occur and the memory battery
backup battery is low or bad, the customer database
is susceptible to being defaulted (factory settings
loaded) whenever a power interruption occurs. If
this occurs change the standard (photo-cell type)
lithium battery.
Diagnostic Quick Reference Chart (continued)
Symptom(s) Diagnostic Aid Cause(s) Action
- Technical Manual - Volume I 1
- TABLE OF CONTENTS 3
- Table of Contents (continued) 4
- REGULATIONS 8
- FCC PART 68 INFORMATION 9
- TERMS AND DEFINITIONS 10
- Regulations (continued) 11
- SECTION 1 - INTRODUCTION 13
- Locating Documentation 14
- OVERVIEW 15
- - 10 16
- Configuration 17
- VOICE PROCESSING MODULES 18
- CONFIGURATION TABLE 19
- - 14 20
- Key Service Unit 21
- Power Supply 22
- - 17 23
- 408M (KSU1 Component) 24
- 408E (KSU II Component) 25
- - 20 26
- - 21 27
- - 22 28
- - 23 29
- MDM (Modem Module) 30
- - 25 31
- T1 Card (T1 Module) Details 32
- - 27 33
- - 28 34
- - 29 35
- - 30 36
- Specifications 37
- SYSTEM CRITERIA AND CAPACITY 38
- - 33 39
- - 34 40
- ELECTRICAL DATA 41
- ENVIRONMENTAL DATA 41
- UNIT (COMPONENT) DETAIL 42
- WIRING DATA 43
- REGULATORY DATA 44
- SIGNALING (INTERNAL) DATA 44
- - 39 45
- SECTION 2 - INSTALLATION 47
- Site Planning 48
- Tools and Supplies 49
- MOUNTING THE KSU 50
- - 45 51
- KSU Wiring 52
- - 47 53
- Typical MDF Installation 54
- KSU Components 55
- REPLACING A 408M OR 408E 56
- KSU ASSEMBLY – ADD-ON MODULES 57
- ADDING A DPM8 58
- - 53 59
- Adding an APM4 60
- - 55 61
- Adding a COM4 62
- - 57 63
- Adding an MDM 64
- - 59 65
- Adding an AAM 66
- Adding a KSU2 Second Cabinet 67
- - 62 68
- Adding a Music Source 69
- - 64 70
- Adding an External Pager 71
- - 66 72
- - 67 73
- - 68 74
- - 69 75
- - 70 76
- - 71 77
- - 72 78
- - 73 79
- - 74 80
- SYSTEM MAINTENANCE 81
- TECHNICAL PROBLEM SOLUTIONS 81
- Diagnostic Quick Reference 82
- - 77 83
- - 78 84
- - 79 85
- - 80 86
- - 81 87
- MAINTENANCE UTILITIES 88
- CONNECTING TO THE SYSTEM 89
- - 84 90
- - 85 91
- - 86 92
- - 87 93
- ACCESSING PC-DBA MAINTENANCE 94
- CONFIGURATION 95
- DIAGNOSTICS 96
- - 91 97
- - 92 98
- - 93 99
- - 94 100
- - 95 101
- - 96 102
- - 97 103
- - 98 104
- SW/HW REVISION 105
- - 100 106
- - 101 107
- - 102 108
- - 103 109
- - 104 110
- LOGON DATA 111
- REMOTE CONTROL 111
- - 106 112
- - 107 113
- - 108 114
- - 109 115
- T1 MAINTENANCE 116
- - 111 117
- - 112 118
- - 113 119
- - 114 120
- - 115 121
- - 116 122
- - 117 123
- - 118 124
- Ringing a Group Of Phones 125
- - 120 126
- INSKIN VOICE MAIL 127
- Using Multiple Lines & 128
- - 123 129
- - 124 130
- - 125 131
- - 126 132
- You must enable ECF 132
- - 127 133
- - 128 134
- Digits Passed Inband to 135
- - 130 136
- Numerics 139
- DX120L-IMM-0107 146
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