Instruction manual

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ACU-1000 Operations Manual

Interoperability Now 5

4.6

False Keying ........................................................................................................................................ 4-6

4.7 Inability of Dispatcher to Gain System Control ................................................................................... 4-7

4.8 Poor Audio Quality .............................................................................................................................. 4-9

4.8.1 Incompatible Audio Levels ............................................................................................................. 4-9

4.8.2 Noisy Received Signals ................................................................................................................. 4-11

4.8.3 Audio Equalization ........................................................................................................................ 4-12

4.9 Unintended Consequences ................................................................................................................. 4-13

4.9.1 Unwanted Connections ................................................................................................................. 4-13

5 ACU-1000 TECHNICAL INFORMATION ............................................................................................... 5-1

5.1 Scope .................................................................................................................................................... 5-1

5.2 General Description ............................................................................................................................. 5-1

5.3 Card Cage and Backplane .................................................................................................................... 5-1

5.4 Power Supply Module .......................................................................................................................... 5-1

5.5 CPM-4 Control Processor Module ....................................................................................................... 5-2

5.6 HSP-2A Handset/Speaker Module ....................................................................................................... 5-2

5.6.1 General Description HSP-2A .......................................................................................................... 5-2

5.6.2 Block Diagram Description HSP-2A .............................................................................................. 5-2

5.6.3 HSP-2A New Features and Enhancements from the HSP-2 ........................................................... 5-4

5.6.4 HSP-2A Specifications .................................................................................................................... 5-5

5.7 DSP-2 Module ..................................................................................................................................... 5-6

5.7.1 General Description DSP-2 ............................................................................................................. 5-6

5.7.2 Block Diagram Description DSP-2 ................................................................................................. 5-6

5.7.3 DSP-2 Specifications....................................................................................................................... 5-8

5.8 PSTN-2 Module ................................................................................................................................... 5-9

5.8.1 General Description PSTN-2........................................................................................................... 5-9

5.8.2 PSTN-2 Specifications .................................................................................................................. 5-10

5.9 LP-2 Module ...................................................................................................................................... 5-11

5.9.1 General Description LP-2 .............................................................................................................. 5-11

5.9.2 LP-2 Specifications ....................................................................................................................... 5-11

6 OPTIONS ....................................................................................................................................................... 6-1

6.1 STU-3 Option....................................................................................................................................... 6-1

6.1.1 Equipment Required ........................................................................................................................ 6-1

6.1.2 Required Applications ..................................................................................................................... 6-1

6.1.3 Installation ....................................................................................................................................... 6-2

6.1.4 Operation: Cross Connecting a STU-III phone .............................................................................. 6-4

6.2 LE-10/20/30/40 .................................................................................................................................. 6-11

6.2.1 Dip Switch Setting for LE-10/20/30 ............................................................................................. 6-11

7 LEGACY MODULE INFORMATION ...................................................................................................... 7-1

7.1 Legacy Module Overview .................................................................................................................... 7-1

7.2 PSM-1A replaces PSM-1 ..................................................................................................................... 7-2

7.3 HSP-2A replaces HSP-2 ...................................................................................................................... 7-2

7.4 HSP-2/HSP-2A Compatibility Details ................................................................................................. 7-3

7.4.1 Handset Microphone ....................................................................................................................... 7-3

7.4.2 Line Input ........................................................................................................................................ 7-3

7.4.3 PTT Circuit...................................................................................................................................... 7-4

7.4.4 HSP-2A DB-15 Connector Interface ............................................................................................... 7-4

7.4.5 External Speaker ............................................................................................................................. 7-4

7.5 CPM-4 replaces CPM-2 ....................................................................................................................... 7-5

7.5.1 CPM-2 Switch Settings ................................................................................................................... 7-5

7.6 DSP-2 Replaces DSP-1 ........................................................................................................................ 7-8

7.7 DSP-2 Replaces the RDI-1 Module ..................................................................................................... 7-9

7.8 PSTN-2 Replaces the PSTN-1 Module ................................................................................................ 7-9

8 INDEX ............................................................................................................................................................ 8-1