AT&T StarLAN 10 Bedienerhandbuch Seite 312
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Analog Line (TN742)
The Analog Line Circuit Pack interfaces eight analog voice terminal lines and the TDM bus.
Figure 3-14 shows the following Analog Line unique circuitry:
● Ringing application circuit
● Port Input/Output (I/O) circuit
● Eight port circuits.
PORT
CIRCUIT
0
ELECTRONIC
CODEC
HYBRID
BATTERY
FEED
OVERVOLTAGE
PROTECTION
●
❘
T.O
\
❘
NPE 0
NPE 1
❘
R.0
/
●
❘
ON-BOARD
MICRO-
PROCESSOR
●
●
●
●
\
●
●
POWER
SUPPLY
PORT
I/O
CIRCUIT
RINGING
APPLICATION
CIRCUIT
T.3
PORT
CIRCUIT
3
R.3
T.4
PORT
CIRCUIT
4
R.4
TO
ANALOG
TIP/RING
VOICE
TERMINALS
❘
❘
❘
T.7
PORT
CIRCUIT
R.7
7
/
Figure 3-14. Unique Analog Line (TN742) Circuitry
3-28
- AT&T System 25 1
- ● Tie Lines TL31M 4
- ● Off-Premises Stations OL13C 4
- SECTION 1—OVERVIEW 7
- ● Data Facilities 8
- ● Networking Capability 8
- ● . . . . ● . . ● ● 19
- DIRECT TRUNK ATTENDANT 34
- OPTIONAL SELECTOR 34
- SWITCHED LOOP 38
- ATTENDANT CONSOLE 38
- Auto Answer 40
- ● Assign Position Busy 45
- ● Conference information 51
- . Programmable Buttons: 60
- ● Call Coverage: 65
- Systems Technician 69
- N10 may 72
- TABLE [300] 76
- ● ARS FRL Level (0-3) 79
- XXX) will appear 85
- ASCII CHARACTER 92
- POSITION 92
- DESCRIPTION 92
- - FURNISHED BY INSTALLER 94
- ● Assign Call Park buttons 109
- ● Outward Restriction 113
- ● Toll Restriction 113
- ● Facility Access Restriction 113
- ● ARS Restrictions 113
- Command Mode 127
- Transfer 127
- To Data 127
- O support 129
- ● Dark–Data endpoint is idle 131
- ● The characters “(” “)” “-” 133
- ● The “%” or 133
- ● DIAL: 3478 134
- CceSS codes 137
- ● #–End of dialing 138
- AC Outlet) 142
- User Guides 143
- Hardware Requirements: 150
- DSS buttons (maximum of four 151
- ● Pooled Facilities: 152
- Change Parity to Even 158
- Change Mismatch to Yes 158
- ● Assign AUTO ANS button 165
- ● Speakerphone Adjunct: 166
- Figure 2-27 168
- BIS with Display) 168
- Figure 2-29 170
- ● Repertory Dial buttons 174
- ● Prime Line Preference: 177
- ● Ringing Line Preference: 177
- Administration Requirements 179
- Hardware Requirements 179
- ● Unassigned DID calls 182
- ● Coverage calls 182
- ● Returning calls 182
- ● Attendant Message Waiting 183
- ● Conference: 188
- ● Direct Group Calling: 188
- ● Night Service: 194
- ● PagePac 20 (Powermate) 198
- Using CO Trunk Ports (FCC 200
- Registered) 200
- Figure 2-34 201
- StatUS of Send All 223
- S deactivated by 225
- Terminals 231
- Single-Line Telephone) 240
- Telephone) 241
- ● Linear Hunting Example: 243
- ● Circular Hunting Example: 243
- Test Manual 247
- PEC 21691 251
- MODULARIZES 2012D TRANSFORMER 252
- (212 TYPE) 254
- ● Most Recent System Errors: 256
- ● Periodic 256
- ● Demand 256
- ● Voice Terminal (source) 260
- ● Data Terminal (source) 260
- ● Dark–Data endpoint is idle 268
- DISCONNECTED 275
- ● Data Port 278
- ● Example 2: 280
- ● Example 3: 281
- ● Example: 281
- ● Common Control 285
- ● Switching Network 285
- ● Address and data buffers 289
- ● ROM array 289
- ● ROM select 289
- ● Timing and control logic 289
- ● Port Circuits 290
- ● System Resource Circuits 290
- Circuit Packs (Sheet l of 3) 295
- Circuit Packs (Sheet 2 of 3) 296
- Circuit Packs (Sheet 3 of 3) 297
- ● Ground detector circuit 300
- ● Eight port circuits 300
- ● Eight port circuits 302
- ● Protocol handler 306
- ● Eight port circuit 306
- ● A bit clock 308
- ● Bus isolation 308
- ● Eight port circuit 308
- ISOLATION 309
- ● Four port circuits 316
- Unprotected 318
- ● Port I/O circuit 325
- Software 329
- ● Transient System Errors 331
- ● Most Recent System Errors 331
- - iii 335
- ● ZTN85 Service Circuit 342
- ● TN748 Tone Detector 342
- (ADUs). Used for in-building 343
- Terminal Equipment 347
- ❑ TRANSFER ❑ 364
- (DOSS) Configurator 371
- Multiline Terminal User 375
- Peripheral Equipment 380
- Auxiliary Equipment 380
- Connectivity 381
- Line Voice Terminal 394
- ● Single-Line Voice Terminals 403
- ● Multiline Voice Terminals 403
- Specifications 407
- ● Susceptible to flooding 416
- QUAD AC OUTLETS 418
- Table Top Space 419
- ● Highly corrosive 420
- SECTION 7—PARTS INFORMATION 424
- 3140-010 432
- 3170-00M 432
- P/O 52512 432
- 405462904 436
- P/O 62520 436
- 527840102 2614-100 436
- P/O 6250-011 436
- SECTION 9—GLOSSARY 440
- ● CO Trunks 445
- ● FX Trunks 445
- ● WATS Trunks 445
- ● OCC Trunks 445
- ● Tie Trunks 445
- ● Facility port (trunk port) 448
- ● Auxiliary equipment port 448
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