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Protecting
the line
connections
Transient voltage spikes, if induced onto CO or CENTREX lines, can travel through the cable
and into the common equipment. The telephone company offers basic protection against this
condition, but it is usually designed to protect the central office circuits. While this CO or
CENTREX service will also provide some protection to the common equipment, you should not
rely upon it for total protection. To help ensure that external over-voltage surges do not damage
the system, Comdial recommends that you install and properly ground gas discharge tubes, or
similar primary protection devices, on all lines.
If spare conductors exist in the cables that are run between the line boards and the 66M-xx
connector blocks, it is a good practice to connect them to earth ground to help prevent them from
inducing radio frequency and/or AC interference into the system.
Each line board is shipped with a ferrite collar. Snap one of these around each line cable to
provide protection against radio frequency interference.
4.2 Connecting The Stations
How to
connect
the stations
Station boards have 50-pin amphenol-type connectors that are cable-connected to type 66M-xx
connector blocks. Wiring from the connector blocks to the stations is via twisted-pair cable to
standard wall jacks. The gauge size of the twisted-pair station wiring determines the maximum
distance allowed from the common equipment to the stations.
Station Type
Wire Gauge
20 AWG 22 AWG 24 AWG
Digital Telephone 2500 Feet 2000 Feet 1500 Feet
Industry-Standard Telephone 4000 Feet 3500 Feet 3000 Feet
Protecting
the station
connections
If spare conductors exist in the cables that are run between the station boards and the 66M-xx
connector blocks, it is a good practice to connect them to earth ground to help prevent them from
inducing radio frequency and/or AC interference into the system.
Each station interface board is shipped with an appropriate supply of ferrite collars. Snap one of
these around each station cable to provide protection against radio frequency interference.
Installing a
DSS/BLF
console
Install a DSS/BLF Console at any station in the system as a companion to a telephone. There is
no limit to the maximum number of consoles that can be installed on a system. When you install a
console, you must also define the station as a console with programming.
4 – 2 General Description
GCA40–215 General Description
- General Description 1
- Contents 3
- 2 – Contents 4
- Introducing The FXT System 5
- Understanding The 7
- Telephone Features 7
- 2 – 2 General Description 8
- General Description 2 – 3 9
- 2 – 4 General Description 10
- GCA40–215 General Description 10
- 2.3 Using Impact Telephones 11
- 2 – 6 General Description 12
- General Description 2 – 7 13
- Impact Telephones 13
- 8012S, 8112S 14
- 8024S, 8124S 14
- 2122S (22-Line Speakerphone) 15
- 9.08" 16
- 8.90" 16
- 1.13" 16
- 4.78" 16
- 3.94" 16
- 2.5 Using DigiTech Telephones 17
- 2 – 12 General Description 18
- DigiTech Telephone Dimensions 18
- Reviewing The Hardware 19
- 3 – 2 General Description 20
- 3.3 Defining The Line Boards 21
- 3 – 4 General Description 22
- General Description 3 – 5 23
- 3.6 Locating The Boards 24
- 3.8 Mounting Considerations 27
- 3.9 Using The Power Supply 28
- 3.10 Using The Battery Backup 29
- External Battery Connector 30
- Assembly) 30
- General Description 3 – 13 31
- Expansion 32
- Backplane 32
- Expanding The FXT System 33
- Connecting The System 35
- 4.2 Connecting The Stations 36
- General Description 4 – 3 37
- 4 – 4 General Description 38
- AC Wall Transformer 39
- IST Equipment 39
- (Front View of Jack) 40
- MUSIC 1 = Pins 1 and 6 40
- MUSIC 2 = Pins 2 and 5 40
- General Description 4 – 7 41
- Typical Industry Standard 42
- Non-electronic Telephone 42
- (Power Failure Interface) 42
- General Description 4 – 9 43
- FXT Specifications 45
- Central Office Limits 46
- Dimensions (approximate) 47
- Music Interfaces (Two Inputs) 47
- Operating Environment 47
- Power Requirements 48
- Serial Data Ports 48
- Station Cable Requirements 49
- Switching Principle 49
- Terminations 49
- Ringing Cadences 50
- FCC Part 68 Information 51
- Terms and Definitions 52
- Understanding The Features 55
- 6 – 2 General Description 56
- 6.2 Defining The Features 57
- Abandoned Hold Release 57
- Access Denied 57
- Account Code Button 57
- 6 – 4 General Description 58
- General Description 6 – 5 59
- New Features 60
- Feature Enhancements 61
- System Programming 62
- E1 Board Programming 62
- R2 MFC Line Programming 62
- DID Block Programming 62
- Category 62
- Attendant Position 63
- Attendant Position, PC 64
- Authorization Code 64
- Automatic Dialing 64
- Automatic Hold—Line To Line 65
- Automatic Pause Insertion 65
- Automatic Privacy 65
- Automatic Redial 66
- Automatic Reports 67
- Automatic Route Selection 67
- ARS Access Per line Group 68
- Automatic Station Relocation 69
- 6 – 16 General Description 70
- General Description 6 – 17 71
- Caller ID 72
- Caller ID RNA—Ring–No–Answer 72
- Call Forward—All Or Personal 73
- Call Forward—Immediate 73
- Call Forward Outside System 74
- Call Forward, Recall 75
- Call Park 75
- Call Park Recall 75
- 6 – 22 General Description 76
- Camp–On—Call Waiting 77
- Camp–On—No Answer 77
- Central Message Desk 77
- Channel Negotiation 78
- Clear Major Alarm Ring 78
- Communications Card Support 79
- Conferencing—Multiline 79
- Conference Advisory Tone 79
- Console Support 79
- Consoleless Operation 80
- Consultation Hold 80
- Copy Model 80
- COS Time Of Day Routing 80
- Database Program Storage 81
- Database Programming 81
- Data Interface Unit Support 81
- Day One And Day Two Ringing 82
- Day Restriction Level 82
- Delayed Ringing 83
- Delayed Hot Line Operation 83
- Diagnostics (Limited) 83
- Dial 0 For System Attendant 83
- Dial By Name 83
- Dial Pulse Interdigit Time 84
- Digit Q and Z Position 84
- Direct-in Lines (DIL) 85
- Direct Inward Dialing (DID) 85
- 6 – 32 General Description 86
- How DISA Functions 87
- Direct Line Access By Station 88
- Direct Line Group Selection 88
- Disconnect Supervision 88
- Discriminating Ringing 88
- Do Not Disturb (DND) 89
- Do Not Disturb (DND) Inhibit 89
- Do Not Disturb (DND) Override 89
- DSS/BLF Console Support 89
- DSS Status Button 90
- Digital Voice Announce 90
- Welcome greeting 91
- Day message 91
- Night message 91
- Recall no answer messages 92
- Recall busy message 92
- Hold message 92
- Feature access message 92
- Drop message 92
- DVA/DISA 93
- 6 – 40 General Description 94
- DVA/Tracker 95
- Dynamic Save Button 96
- (international applications) 96
- E911 Line Type 97
- End-to-End DTMF Signaling 97
- End-to-End Signaling On Lines 98
- Enhanced Night Mode 98
- Enhanced Ringing 98
- Enhanced Ringing Devices 99
- Enhanced Line Appearance 99
- Exclusive Hold 99
- ExecuMail Integration 99
- Executive Override 100
- Executive Override Block 100
- Extended DTMF Tones 100
- Feature Inhibit 101
- Feature Renumbering 102
- Flexible Ringing Assignments 102
- Force Monitor Mode 103
- Group Intercoms 103
- Handsfree Answer Inhibit 104
- Handset Volume Level 104
- Headset Compatibility 104
- General Description 6 – 51 105
- General Description GCA40–215 105
- Hot Transfer 106
- I Hold And I Use Indications 106
- Idle Line Preference 106
- Idle Line Priority 106
- Bridged Console 107
- Impact SCS IST Module 107
- 6 – 54 General Description 108
- General Description 6 – 55 109
- Interactive Button Support 110
- Intercom Number 110
- Intercom Hunt List 111
- Intercom Time-out 111
- Intercom Call Progress Tones 111
- Intercom Inter-Digit Dialing 111
- ISDN–PRI Interface 112
- Defining T1/PRI Operation 113
- Key/Hybrid Configuration 114
- Last-Number Redial 114
- Line Access Restriction 114
- Enhanced LCD Display 115
- Location Code 116
- Lock Button 117
- Manual Exclusion 117
- Manual Reset 117
- Mark Problem Line 117
- Master Clearing The System 118
- Maximum Call Duration 118
- Meet-Me Answer Page 118
- General Description 6 – 65 119
- Modify Digits Table 120
- Multiple Attendant Positions 120
- Multiple Redial 120
- Music Interface 120
- Music On Hold (MOH) 120
- Names (Station And Lines) 121
- Night Ringing 121
- On-Hook Dialing 122
- Operator Station 122
- Originating Denied 122
- Out-Dial Delay Time 122
- Paging Access 122
- Password Protection 123
- Pause Time 123
- PC Attendant 123
- Periodic Line Tone 123
- 6 – 70 General Description 124
- Printer Interface 125
- Privacy Release 125
- Private Lines 125
- Program Printout 125
- Programming Port 126
- Pulse/Tone Switchable 126
- General Description 6 – 73 127
- 6 – 74 General Description 128
- General Description 6 – 75 129
- 6 – 76 General Description 130
- Shift Button 131
- Silent Mode Button 131
- SMDA Reports 131
- Speakerphone Support 132
- Speed Dial Sets 132
- Split Button 132
- General Description 6 – 79 133
- Station Hunting 134
- Types Of Hunting 135
- Station Hunting Timers 135
- Station Hunting Operation 136
- SMDR On Transferred Calls 137
- Station Name 138
- Station Speed Dial 138
- Station Transfer Recall 138
- Subdued Ringing 139
- Synchronized Ringing 140
- System Clock 140
- System Speed Dial 140
- Toll Restriction Override 141
- Applications) 142
- General Description 6 – 89 143
- Time And Date 144
- Timed And Immediate Recall 144
- Toll Restriction 145
- Tone On Hold 145
- Tracker Paging System 146
- RNA Or Busy Tracking 147
- Direct Tracking 147
- Transfer Tracking 147
- 6 – 94 General Description 148
- Voice Mail Integration Digits 149
- Voice Announce Blocking 150
- General Description 6 – 97 151
- Zone Paging 152
- Index – 1 153
- Index GCA40–215 153
- 2 – Index 154
- GCA40–215 Index 154
- 4 – Index 156
- Index – 5 157
- 6 – Index 158
- Index – 7 159
- GCA40–215.02 05/00 162
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