LBI-39100 Maintenance Manual EDACS® C3 MAESTRO™ CONSOLE SYSTEM WITH ENHANCED AUDIO ENCLOSURE TABLE OF CONTENTS INSTALLATION AND SET-UP ....................................... I/O BACKPLANE BOARD ............................................... AUDIO SYSTEM BOARD................................................ SPEAKER KITS AND ASSEMBLIES..............................
LBI-39100 CREDITS EDACS is a registered trademark of Ericsson Inc. C3 Maestro is a trademark of Ericsson Inc. Hewlett-Packard and HP are registered trademarks of Hewlett-Packard Company. IBM is a registered trademark of International Business Machines Corporation. PC-AT is a trademark of International Business Machines Corporation. MS-DOS is a registered trademark of Microsoft Corporation. NOTICE! This manual covers Ericsson and General Electric products manufactured and sold by Ericsson Inc.
LBI-39100 TABLE OF CONTENTS Page SPECIFICATIONS ......................................................................................................................................... 3 INTRODUCTION ........................................................................................................................................... 7 DESCRIPTION ...............................................................................................................................................
LBI-39100 Relative Humidity (Enhanced Audio Enclosure only) Operating Storage Dimensions (height x width x depth; approximate) Enhanced Audio Enclosure Speakers Desk-Top (less volume knob) Rack-Mount (less volume knob) Personal Computer System Rack-Mount Height; Optional (EIA 19-Inch std.
LBI-39100 Desk Mic Boom or Gooseneck Mic Line 1, 2, 3 & 4 Call Director Patch Paging Encoder OTHER INPUTS Microphone PTT And Monitor Switch Microphone Sense Page PTT Call Director Hook Sense & Jack Sense Input for an electret-type microphone similar to part number 19C851086P10 or P11. Approx. input impedance = 600 ohms. Typical input = 70 mV rms (-21 dBm). Nominal input range = -27 to -15 dBm. ALC controlled. DC mic bias = 3.7 ±0.5 Vdc with 1000-ohm load.
LBI-39100 AUDIO OUTPUTS Earphones Supervisor and Operator Headsets Speakers Select and Unselect(s) Line 1, 2, 3 & 4 Call Director Patch Select & Unselect Recorders AUDIO INPUTS AND OUTPUTS Total Harmonic Distortion Hum and Noise Crosstalk Level Adjustment RELAY CONTACT OUTPUTS Standard Call Director On-Hook * 6 Outputs for telephone-style headset earphones similar to Plantronics model HS-0309-1 or ACS model XW/AT. Approx. output impedance = 300 ohms. Unbalanced. Typical output level = 100 mV rms.
LBI-39100 INTRODUCTION The EDACS® C3 Maestro™ console system is a stateof-the-art CRT-based dispatch console system designed to interface to an EDACS® CEC/IMC Digital Audio Switch. Equipped with an Enhanced Audio Enclosure, the C3 Maestro™ provides advanced console dispatch features for EDACS radio system networks.
LBI-39100 • Module Page Area − This area, located in the top right-hand side of the screen, indicates which one of the eight (8) module pages is displayed. When a call is received on a non-displayed page, the respective page indicator is high-lighted in yellow. If an emergency call is received on a non-displayed page, the indicator is high-lighted in red. unselect calls is provided.
LBI-39100 console (PC's COM1 port ⇔ console's modem) and the local serial link at the CEC/IMC (CIM ⇔ CIM's modem) are typically wired via RS-232 hook-ups. Normally, these RS-232 links are configured for 9600 baud operation. maintained by the CEC/IMC Manager (MOM PC). Therefore, all CEC/IMC consoles' clocks are synchronized to the CEC's/IMC's time thus providing consistent time displays at all consoles.
LBI-39100 are located near the bottom of the keyboard for quick and easy access. For example, transmit and module pick keys are at the bottom. Seldom used keys are located near the top of the keyboard. Key groups include: ENHANCED AUDIO ENCLOSURE The C3 Maestro's Enhanced Audio Enclosure contains all audio interface, audio routing and Dispatch Keyboard interface circuitry for the console system.
LBI-39100 Assemblies inside the case include the I/O Backplane Board mounted on the rear panel, the power supply unit mounted to the bottom of the case, and the Audio System Board. With the top cover removed, the Audio System Board slides into and out of the case between two (2) plastic printed circuit board guides attached to the left and right inner sides of the case.
LBI-39100 matrix and output signals are sent out from the "x" side. Audio matrix and all other logical circuitry on this board is controlled by the on-board microcontroller circuits. • • • • • • 12 Audio Output Circuits – Prior to application to the appropriate Enhanced Audio Enclosure output, each audio signal on the output side of the audio matrix (a switched-in signal) is applied to an audio output circuit.
LBI-39100 the select and unselect Speaker Assemblies is front panel labeling. The Speaker Amp Board is mounted just behind the speaker on long metal stand-offs fastened to the assemblies front panel. It amplifies low-power speaker audio signals from the Enhanced Audio Enclosure and drives the speaker with the amplified signal. It can drive the speaker with up to five (5) watts of audio power.
LBI-39100 ❏ Power-down the Enhanced Audio Enclosure by turning the on/off power switch on the back of the unit to the OFF position. ❏ Disconnect the detachable ac power cord from the back of the Enhanced Audio Enclosure. ❏ Disconnection of other cables from the back of the Enhanced Audio Enclosure is optional, as the top cover may be removed with these cables connected. ❏ Lay the unit upside-down on a flat surface with the front panel facing you.
OUTLINE DIAGRAM AND PARTS LIST 8 5 6 LBI-39100 2 (NOT SHOWN) 3 7 12 4 1 9 13 (NOT SHOWN) 10 11 (NOT SHOWN) NOTE: FURNITURE NOT SUPPLIED AS PART OF SYSTEM. C3 MAESTRO CONSOLE SYSTEM WITH ENHANCED AUDIO ENCLOSURE (Made from 903-0001-000 Rev. 0) C3 MAESTRO CONSOLE SYSTEM WITH ENHANCED AUDIO ENCLOSURE P29/7720045009 (350A1371P1) ERICSSON - 2 DESKTOP SPKRS. P29/7720045010 (350A1371P2) ERICSSON - 4 DESKTOP SPKRS. ITEM PART NUMBER CRMC3E Microphone, Boom.
LBI-39100 ASSEMBLY DIAGRAM 10 11 8 (x 1) 2 (x 5); (not shown) 16 POWER SUPPLY 14 13 (x 2) AUDIO SYSTEM BOARD DANGER! HIGH-VOLTAGE AREAS. 9 (x 4) 3 (x 4) 15 I/O BACKPLANE BOARD 12 32 30 (x 1) 37 (x 2) REAR PANEL PART OF ITEM 12 PART OF ITEM 15 POWER SUPPLY INTERCONNECTIONS 29 39 (x 2) 32 41 (x 4) DANGER! HIGH-VOLTAGE AREAS. 40 (x 7) 30 37 (x 2) 4 16 7 34 ENHANCED AUDIO ENCLOSURE P29/7720040000 & P29/7720040001 (Made From 772-0040-XXX-HD, Rev.
PARTS LISTS LBI-39100 ENHANCED AUDIO ENCLOSURE P29/7720040001 (350A1371P4) ERICSSON P29/7720040000 (350A1371P3) GE ISSUE 1 ITEM PART NUMBER DESCRIPTION 1 P29/2A104C2404 Screw, machine: 4-40 x 1/4-inch, pan head Phillips. (Qty. required = 4) 2 P29/2A106C2403 Screw, machine: 6-32 x 3/16-inch, pan head Phillips. (Qty. required = 5) 3 P29/2A106C2404 Screw, machine: 6-32 x 1/4-inch, pan head Phillips. (Qty. required = 9) 4 P29/2A104C2402 Screw, machine: 4-40 x 1/8-inch, pan head Phillips.
LBI-39100 INSTALLATION INSTRUCTIONS ENHANCED AUDIO ENCLOSURE (NOT INCLUDED WITH KIT. SHOWN HERE FOR REFERENCE ONLY.) INSTALLATION INSTRUCTIONS 1. 2. 3. MOUNT TRAY (P29/6090561000) IN 19-INCH CABINET OR CASE USING FOUR (4) #10-24 x 3/4 PHILLIPS PANHEAD SCREWS (P29/2040011000), FOUR (4) #10 LOCK-WASHERS (P29/2080005000), AND FOUR (4) #10 SPRING NUTS (P29/2070098000). THESE ITEMS ARE NOT SHOWN IN DIAGRAM.
