Ericsson LBI-39101A User Manual

INSTALLATION AND SET-UP MANUAL

LBI-39101

C3 MAESTRO

™

CONSOLE SYSTEM

WITH ENHANCED AUDIO ENCLOSURE

TABLE OF CONTENTS

Page

GENERAL....................................................................................................................................................... 5

PERSONAL COMPUTERS ................................................................................................................... 6

Hardware............................................................................................................................................. 6

Operating System Software................................................................................................................. 6

BOARD SET-UP............................................................................................................................................. 6

ENHANCED AUDIO ENCLOSURE..................................................................................................... 6

Audio System Board........................................................................................................................... 6

Mic Audio ALC Enable/Disable DIP Switch (S1)....................................................................... 6

Digital Pots Settings .................................................................................................................... 7

SPEAKER ASSEMBLY.......................................................................................................................... 7

Speaker Amp Board............................................................................................................................ 7

Minimum Volume Level DIP Switch (SW1 Position 1).............................................................. 7

Maximum Volume Level DIP Switch (SW1 Position 2)............................................................. 10

RS-422 BOARD........................................................................................................................................ 11

INTERCONNECTING THE EQUIPMENT................................................................................................ 11

CEC/IMC INTERCONNECTIONS....................................................................................................... 11

Control Data Link............................................................................................................................... 12

Overview ..................................................................................................................................... 12

RS-422 Interfacing (Co-Located Hook-Ups)............................................................................... 12

RS-232 Interfacing (Remote Console Hook-Ups Via 4-Wire Modems And RS-232

Interconnections) ......................................................................................................................... 13

Audio Links ........................................................................................................................................ 14

PERSONAL COMPUTER...................................................................................................................... 18

PC-To-Enhanced Audio Enclosure Serial Data Interconnect Cable................................................... 18

Standard PC Keyboard........................................................................................................................ 18

Video Display Monitor....................................................................................................................... 18

ENHANCED AUDIO ENCLOSURE..................................................................................................... 18

Dispatch Keyboard ............................................................................................................................. 18

Desk Mic (if used) ............................................................................................................................. 18

Headset Jacks (if used) ....................................................................................................................... 18

Boom/Gooseneck Mic (if used).......................................................................................................... 19

Footswitches (if used)......................................................................................................................... 19

Speakers (if used)................................................................................................................................ 19

Recorder Outputs (if used).................................................................................................................. 20

Paging Input (if used).......................................................................................................................... 20

Relay Outputs (if used)....................................................................................................................... 21

ericssonzericssonz

LBI-39101

TABLE OF CONTENTS

Call Director (if equipped).................................................................................................................. 21

Console-to-CEC/IMC Audio Interconnections............................................................................ 21

Console-to-Call Director Interconnections .................................................................................. 21

EQUIPMENT ROOM GROUNDING................................................................................................... 23

AC POWER AND UPS EQUIPMENT .................................................................................................. 23

AUDIO TOWER REPLACEMENT.............................................................................................................. 23

POWER-UP PROCEDURE........................................................................................................................... 25

SOFTWARE INSTALLATION AND SET-UP PROCEDURE.................................................................. 26

PC CMOS SET-UP PROGRAM ............................................................................................................ 26

Hewlett-Packard PCs .......................................................................................................................... 26

Other PCs............................................................................................................................................ 26

FILE DIRECTORIES AND CONTENTS ............................................................................................. 26

AUTOEXEC.BAT File Contents........................................................................................................ 27

CONFIG.SYS File Contents ............................................................................................................... 27

EDITOR PROGRAM.............................................................................................................................. 27

Serial Ports' Settings............................................................................................................................ 27

Set-Up Titles....................................................................................................................................... 27

Call Director ID .................................................................................................................................. 27

RUNNING THE C3 MAESTRO APPLICATION PROGRAM.......................................................... 28

DATABASE INITIALIZATION ............................................................................................................ 28

Console User Profile Configuration.................................................................................................... 29

System Manager Database Uploads.................................................................................................... 29

Console Privilege Lists........................................................................................................................ 29

Saving Database Information.............................................................................................................. 29

CEC/IMC AUXILIARY I/O ................................................................................................................... 29

SOFTWARE INSTALLATION AND UPGRADES ............................................................................. 30

Page

ENHANCED AUDIO ENCLOSURE CONNECTOR PIN-OUTS.............................................................. 30

CABLE ASSEMBLY DIAGRAMS

CONTROL DATA CABLE (100-FOOT) 19B804083P3 ...................................................................... 36

AUDIO CABLE (100-FOOT) 19B804083P2 ......................................................................................... 37

TABLES

Table 1 − Approved Personal Computers ........................................................................................... 6

Table 2 − Audio System Board Mic Audio ALC Enable/Disable DIP Switch S1 .............................. 6

Table 3 – Digital Pots ......................................................................................................................... 8

Table 4 – Cable 19B804083P3 Color Coding .................................................................................... 13

Table 5 − C3 Maestro-To-CEC/IMC Audio Line Requirements ........................................................ 15

Table 6 − Boom/Gooseneck Mic Wiring............................................................................................ 19

Table 7 − Enhanced Audio Enclosure-To-CEC/IMC Call Director Audio Signal Descriptions......... 22

Table 8 − Enhanced Audio Enclosure-To-Call Director Control & Audio Signal Descriptions......... 22

Table 9 – Dispatch Keyboard Cable Color Coding............................................................................. 24

Table 10 – C3 Maestro PC File Directories And Files........................................................................ 26

Table 11 – CEC/IMC Manager (MOM PC) Operations Guide Publication Numbers........................ 28

Table 12 – CEC/IMC Audio Lines (female DB-25 labeled " Table 13 – Call Director (female DB-9 labeled " Table 14 – Boom/Gooseneck Microphone (female DB-9 labeled " Table 15 – Desk Microphone (female DB-9 labeled "

CALL DIR

LINES 1-4

")........................................................... 32

DESK MIC

") ....................................... 30

B/G MIC

").................................................. 32

") ................................. 32

Table 16 – Operator Headset (female DB-9 labeled "OPER H/S") .................................................. 32

Table 17 – Supervisor Headset (female DB-9 labeled "SUPER H/S")............................................. 33

Table 18 – Select Speaker (male DB-9 labeled "SEL SPKR") ......................................................... 33

Table 19 – Unselect Speakers –Three Total (male DB-9 labeled "UNSEL SPKRx") ...................... 33

Table 20 – Operator Footswitch (female DB-9 labeled "OPER FT. SW.") ..................................... 33

Table 21 – Supervisor Footswitch (female DB-9 labeled "SUPER FT. SW.")................................ 34

Table 22 – Optional RS-422 Input/Output (female DB-9 labeled "I/O") ........................................... 34

Table 23 – Personal Computer RS-232 Input/Output (female DB-9 labeled "PC")........................... 34

Table 24 – Dispatch Keyboard Serial Input/Output (female DB-9 labeled "KBD")........................... 34

Table 25 – Relay Connections (18-position terminal block labeled "RELAYS") .............................. 35

Table 26 – Pager Input (4-position terminal block labeled "PAGING")............................................ 35

Table 27 – Recorder Outputs (4-position terminal block labeled "RECORDER")........................... 35

Table 28 – Auxiliary Audio Inputs (Not Supported) .......................................................................... 35

FIGURES

Figure 1 – C3 Maestro With Enhanced Audio Enclosure Equipment Interconnections ..................... 5

Figure 2 − Audio System Board DIP Switch S1 Factory Setting (ALC Enabled On All Mics).......... 6

Figure 3 − Speaker Amp Board SW1 Factory Setting........................................................................ 10

Figure 4 – Plug-In RS-422 Board DB-25 Connector Pin-Out ............................................................ 13

Figure 5 − Audio Line Input And Output Connections At Enhanced Audio Enclosure...................... 15

Figure 6A − CEC/IMC-To-C3 Maestro Interconnections (Co-Located) ............................................ 16

Figure 6B − CEC/IMC-To-C3 Maestro Interconnections (Remote And/Or RS-232)......................... 17

Figure 7 – Recorder Outputs At Enhanced Audio Enclosure.............................................................. 20

Figure 8 – Pager Inputs At Enhanced Audio Enclosure...................................................................... 20

Figure 9 – Relay Terminal Block At Enhanced Audio Enclosure....................................................... 21

Figure 10 − Call Director Interface Connector At Enhanced Audio Enclosure.................................. 22

Figure 11 – Enhanced Audio Enclosure Rear Panel Connectors ........................................................ 31

LBI-39101

TABLE OF CONTENTS

Page

LBI-39101

This Page Intentionally Blank

GENERAL LBI-39101

GENERAL

The intent of this manual is to guide field installation and maintenance personnel through the installation and setup of an EDACS equipped with an Enhanced Audio Enclosure. Figure 1 is a simplified diagram which indicates equipment interconnections in a typical installation. As noted in the figure, some installations may not require all interconnections shown and still others may require additional interconnections to audio accessories or o ptional equipment not shown in the figure.

This document was developed in accordance with:

•

C3 Maestro 2-speaker console system hardware P29/7720045009 (350A1371P1) and 4-speaker console system hardware P29/7720045010 (350A1371P2). Each above console system includes an Enhanced Audio Enclosure P29/7720040000 (350A1371P3) or P29/7720040001 (350A1371P4).

C3 Maestro™ dispatch console system

•

C3 Maestro (PC) application software version 5.0x (344A3922G12)

•

Enhanced Audio Enclosure firmware version 1.00 (350A1520G1)

•

CEC/IMC Digital Audio Switch firmware version

4.0x (344A3564G11, 344A3565G11, 344A3567G11 and 344A3568G11)

•

CEC/IMC Manager (MOM PC) software version

4.0x (344A3630G11)

NOTE

C3 Maestro application software version 5.0x requires CEC/IMC Controller and Audio Board firmware version 4.0x (or later), and CEC/IMC Manager software version 4.0x (or later).

VIDEO

DISPLAY

MONITOR

STANDARD PC

KEYBOARD

(NOT USED DURING

NORMAL DISPATCH

OPERATIONS)

DISPATCH

KEYBOARD

CUSTOM

KEYBOARD")

SELECT

SPEAKER

UNSELECT

SPEAKER 1

SEE NOTE 3.

OPERATOR

HEADSET

SEE NOTES 4 & 5.

DESK MIC

OPERATOR

FOOTSWIT CH

NOTES:

1. AC POWER CONNECTIONS NOT SHOWN.

2. PUNCH BLOCKS, TELCO CABLES, CEC/IMC BACKPLANE AND CONCENTRATOR CARD CABLES NOT INDICATED.

3. ONLY ONE UNSELECT SPEAKER SHOWN. SPEAKERS INTERCONNECTED USING CABLE P29/5010150000 (350A1371P29)

4. SUPERVISOR HEADSET AND FOOTSWITCH, BOOM/GOOSENECK MIC, AND OTHER AUDIO IN P UTS SUCH AS PAGER ARE NOT SHOWN.

5. RELAY OUTPUT AND DIGITAL INPUT CONNECTIONS ARE NOT SHOWN.

6. UNSELECT AUDIO LINE(S) NOT REQUIRED IF CONSOLE IS NOT EQUIPPED WITH RESPECTIVE UNSELECT SPEAKER(S).

7. IF CONSOLE SYSTEM DOES NOT SUPPORT CALL DIRECTOR TELEPHONE PATCH, ALL CD INTERCONNECTIONS ARE NOT REQUIRED.

8. ENHANCED AUDIO ENCLOSURE LABELING MATCHES OR APPROXIMATELY MATCHES REAR PANEL LABELING.

9. CABLE 19B804083P2 (LINE AUDIO) AND CABLE 19B804083P3 (RS-422 CONTROL DATA) PROVIDE ALL NECESSARY C3 MAESTRO-TO-CEC/IMC INTERCONNECTIONS WHEN CONSOLE IS CO-LOCATED AND LESS THAN 100 FEET FROM CEC/IMC .

ENHANCED AUDIO ENCLOSURE

KBD

SEL SPKR

UNSEL SPKR1

OPER H/S

DESK MIC

OPER

FT.SW.

PERSONAL

COMPUTER

(PC)

I/O BACKPLANE BOARD

AUDIO

SYSTEM

BOARD

LINE 1 IN

LINE 1 OUT

LINE 2 IN

LINE 3 IN

LINE 4 IN

LINE 4 OUT

CD OUT

CD IN

CD HOOK/

SENSE

SEE

NOTE 8.

LINES

1-4

CALL

DIR

CONTROL DATA

COM1

COM2

CABLE P29/5010150000 (350A1371P29)

RS-232 CONTROL DATA

SELECT AUDIO (2 WIRES)

MIC AUDIO (2 WIRES)

UNSELECT AUDIO 1 (2 WIRES)

UNSELECT AUDIO 2 (2 WIRES) UNSELECT AUDIO 3 OR

CD PATCHED RADIO AUDIO (2 WIRES) CD PATCHED MIC AUDIO OR

CONSOLE MIC AUDIO (2 WIRES)

CD RECEIVER AUDIO (2 WIRES)

CD MIC AUDIO (2 WIRES)

CD CONTROL (5 WIRES MAX.)

RS-232

(3 WIRES)

RS-422 (4 WIRES)

4-WIRE DATA

MODEM

EQUIPMENT

(REQUIRED FOR

A REMOTE CONSOLE)

19B804083P3

CABLE

19B804083P2

SEE NOTES

6, 7 & 9.

SEE NOTE 7.

CABLE

RS-232 (3 WIRES)

SEE

NOTES 2 & 9.

CARD

AUDIO CARD

CEC/IMC

DIGITAL AUDIO SWITCH

TO/FROM OTHER

CEC/IMC

INTERFACE

MODULES

DATA

DATA CON.

CON.

CONTROLLER

BOARD

(SEE NOTE 2)

LOCAL CNTRL

BOARD

(SEE NOTE 2)

LINE 1 OUT

LINE 1 IN

LINE 2 OUT

LINE 3 OUT

LINE 4 OUT

LINE 4 IN

CALL

DIRECTOR

CIM

AUDIO

TDM AUDIOGSC CONTROL

PHONE

LINES

Figure 1 – C3 Maestro With Enhanced Audio Enclosure Equipment Interconnections

LBI-39101 BOARD SET-UP

PERSONAL COMPUTERS

In most cases, the Personal Computer (PC) used with the C3 Maestro console is delivered with its hard disk drive formatted and MS-DOS installed on the hard disk drive. In addition, all C3 Maestro application software is also installed on the drive.

operating system software

Hardware

Table 1 lists the PCs approved for use with a C3 Maestro console system equipped with an Enhanced Audio Enclosure. Use of an unapproved computer will void the console system's warranty and support services. Subsequent to the printing of this manual, additional PCs not listed in the table may be approved.

Table 1 −− Approved Personal Computers

MANUFACTURER MODEL NO. OR TYPE

Hewlett-Packard

Hewlett-Packard Hewlett-Packard Vectra VL2 (486/66 MHz)

Hewlett-Packard Vectra 25N (486/25 MHz) Hewlett-Packard 486SX/25 (486SX/25 MHz)

Vectra VE Series 2 5/75

(Pentium/75 MHz)

Vectra VE 5/75

(Pentium/75 MHz)

Operating System Software

The PC will have MS-DOS version 6.x installed on its hard drive. Earlier versions of MS-DOS are not approved

for use with the C3 Maestro console system equipped with an Enhanced Audio Enclosure.

NOTE

Unless otherwise noted, all procedures in this

manual should be performed in the order presented.

IMPORTANT NOTE

In most cases, changes to the fact ory DIP sw itch and digital pot settings ARE The following information lists the normal factory settings and the optional settings which are available. Digital pot setting changes must be accomplished procedures presented later in this manual are complete and the console has been powered-up. However, for completeness of this section, a setting procedure is included on page 7.

after

most of the installation

NOT

REQUIRED.

Audio System Board

Mic Audio ALC Enable/Disable DIP Switch (S1)

DIP switch S1 on the Audio System Board is used to independently enable or disable each microphone's automatic level control (ALC) circuit. The switch has four (4) positions, one for each mic that may be connected to the Enhanced Audio Enclosure.

An Audio System Board ships from the factory with all mic audio ALC circuits enabled. As shown in Figure 2, this is accomplished by setting all four S1 switch positions to "ON" or "CLOSED". Table 2 lists each switch position and its corresponding microphone.

Normally, mic audio ALC should not be disabled. However, if required, disable a mic's ALC by setting the corresponding DIP switch position to "OFF" or "OPEN". See LBI-39100 for Enhanced Audio Enclosure disassembly and Audio System Board access instructions.

Table 2 −− Audio System Board Mic Audio ALC

Enable/Disable DIP Switch S1

S1 POSITION MICROPHONE

1 Operator Headset

BOARD SET-UP

ENHANCED AUDIO ENCLOSURE

Normally, the Enhanced Audio Enclosure is configured at the factory for a standard C3 Maestro dispatch console system installation. This configuration includes setting a single 4-position DIP switch and programming all digital pots for nominal audio input and output levels. The DIP switch and digital pots within the Enhanced Audio Enclosure are located on the Audio System Board.

2 Desk 3 Boom/Gooseneck 4 Supervisor Headset

12 3

Figure 2 −− Audio System Board DIP Switch S1

Factory Setting (ALC Enabled On All Mics)

BOARD SET-UP LBI-39101

Digital Pots Settings

To provide computer-controlled level settings, the Enhanced Audio Enclosure's audio input and audio output circuits incorporate 256-position digitally-controlled potentiometers. These digital pots, located on the Audio System Board, allow adjustment of the Enhanced Audio Enclosure's audio levels via the PC. Adjustments include dispatcher-adjustable audio levels such as headset sidetone volumes and system-level adjustments such as line input and output levels to and from the CEC/IMC Digital Audio Switch.

With the exception of the dispatcher's headset sidetone volume adjustments, none of the digital pots pro vide volume adjustments for the speaker or headset earphone audio levels during normal dispatch operations. Speaker and headset volume adjustments are accomplished at the respective speaker or headset via mechanical pots. Also see the following note.

NOTE

Communication module volume changes at the C3

Maestro effect CEC/IMC CIM line output levels,

not the digital pots within the Enhanced Audio

Enclosure.

Fifteen (15) dual digital potentiometer chips (integrated circuits) are located on the Audio System Board for a total of thirty (30) individual pots; there are no mechanical potentiometers. All audio level adjustments are accomplished via software. See Table 3. A dispatcher may adjust the operator's sidetone digital pot using dedicated keyboard keystrokes <Alt> <Vol ↑ > and <Alt> <Vol ↓ > at the Dispatch Keyboard.

All of the digital pots initially power-up with the wiper in a 50% or centered position. The microcontroller on the Audio System Board then immediately loads each pot in accordance with its respective setting stored in a "working" area of a serial EEPROM chip on the board. The EEPROM also contains an unchangeable "default" digital pot storage area. When shipped from the factory, the working area matches the default area.

Digital pots may be adjusted using the C3 Maestro application program via one of its note cards. This function changes the settings stored in the EEPROM's working area. Normally, this note card function should only be accessed by the installation and/or service personnel. To change a digital pot's setting, the following procedure may be performed after the console's installation is complete and it has been powered-up:

1. From the Dispatch Keyboard, simultaneously press the <Alt> (common control function) and the # (on

numeric keypad) keys. "Digital Pot Num ber: ?" is displayed in the lower left-hand side of the C3 Maestro's display.

2. From the numeric keypad, enter the number of the digital pot to be changed. See Table 3. The digital pot's existing setting is displayed.

3. Press the ↑ (increase) or ↓ (decrease) key to change the current setting. Changes are saved in the EEPROM's working area as they are made.

4. Press <Esc> to exit.

SPEAKER ASSEMBLY

Normally, a Speaker Assembly used with the Enhanced Audio Enclosure is configured at the factory with its minimum v olume f eatur e ena bled and it s maximu m volume output power set to 2 watts. This configuration is accomplished by setting two positions on a 4-position DIP switch located on the Speaker Amp Board within the Speaker Assembly.

NOTE

The following information lists the normal factory

settings and the optional settings which are

available.

Speaker Amp Board

At each Speaker Assembly, a 4-position DIP switch identified as SW1 is located on the Speaker Amp Board. One position is used to enable or disable the minimum volume level feature. A second position allows setting of the maximum volume level to either 2 or 5 watts of output power. Factory settings are shown in Figure 3. These switches have no effect on hea dset earphone output le vels. Currently, the other two DIP switch positions on SW1 are not used.

NOTE

SW1 may have a tape seal placed over the switches

to prevent changes.

Minimum Volume Level DIP Switch (SW1 Position 1)

When SW1 position 1 is "OFF" or "OPEN", the minimum volume level feature is enabled. This is the factory setting. With this setting, audio from the speaker cannot be completely turned off by rotating the volume control on the Speaker Assembly's front panel fully counterclockwise.

LBI-39101 BOARD SET-UP

Table 3 – Digital Pots

AUDIO

SYSTEM BD.

POT NO.

1 Call Director Input

28 Pager Input

3 Operator Headset Mic Input

8 Selected Operator Mic Input

6 Desk Mic Input

ENHANCED AUDIO ENCLOSURE AUDIO CIRCUIT LOCATED IN /

Adjusts level of telephone line audio from Call Director. Affects audio levels to operator/supervisor headsets, select speaker, select recorder and line output to CIM line input (to radio) during Call Director radio patch operations. Also see pot 14.

Adjusts level of pager input audio from an external pager. Affects tone levels to operator/supervisor headsets, select speaker, select recorder and line output to CIM line input (to radio) during pager activations (PTTs).

Adjusts level of operator headset mic input audio. Does not affect boom/gooseneck mic or desk mic audio input levels.

Adjusts currently selected operator mic (either boom/gooseneck, desk or operator headset) audio level. In the circuitry, this adjustment is located after pots 3, 5 and 6. Affects audio level(s) at one or more outputs including line 1, line 4, select recorder and/or sidetone.

ADJUSTS *

TYPICAL SETTING

120

130

140

Adjusts level of desk mic input audio. Does not affect boom/gooseneck mic or operator headset mic audio input levels.

5 Boom/Gooseneck Mic Input

Adjusts level of boom/gooseneck mic input audio. Does not affect operator headset mic or desk mic audio input levels.

4 Supervisor Headset Mic Input

Adjusts level of supervisor headset mic input audio. Also see pot 7.

7 Supervisor Headset Mic Input

Post adjustment for supervisor headset mic input audio. Do not change from factory setting. Also see pot 4.

9 Supervisor Sidetone

Adjusts sidetone level of supervisor headset mic audio applied to supervisor and operator headset earphones.

10 Operator Sidetone

Adjusts sidetone level of operator headset mic audio applied to supervisor and operator headsets earphones.

11 Line 1 Input

Adjusts level of line 1 input audio from CIM line 1 output. Affects audio level to select audio output devices such as headset earphones, select speaker and select recorder.

124

140

BOARD SET-UP LBI-39101

AUDIO

SYSTEM BD.

POT NO.

12 Line 2 Input

Adjusts level of line 2 input audio from CIM line 2 output. Affects audio level to unselect audio output devices such as unselect speaker 1 and unselect recorder.

17 Line 3 Input

Adjusts level of line 3 input audio from CIM line 3 output. Affects audio level to unselect audio output devices such as unselect speaker 2 and unselect recorder.

18 Line 4 Input

Adjusts level of line 4 input audio from CIM line 4 output (from radio). Affects audio levels applied to unselect audio output devices such as unselect recorder and, if a third unselect speaker is employed, unselect speaker 3. If a Call Director is employed, adjustment affects audio to Call Director telephone line and unselect recorder. Primary line 4 adjustment. Also see pots 2 and 20.

20 Auxiliary Input

Adjusts level of line 4 input audio from CIM line 4 output (from radio). Affects audio levels applied to select recorder, and all speakers during Call Director patch o perations. Secondary line 4 adjustment used only if console is equipped with a Call Director. Also see pot 18.

Table 3 – Digital Pots

ENHANCED AUDIO ENCLOSURE AUDIO CIRCUIT LOCATED IN /

ADJUSTS *

(Continued)

TYPICAL SETTING

114

27 N/A (pot not used) 0 15 Line 1 Output

Adjusts level of line 1 output audio to CIM line 1 input. 16 Line 2 Output (adjustments never required) 23 13 Line 3 Output (adjustment never required) 23 14 Line 4 Output

Adjusts level of line 4 output audio to CIM line 4 input. Affects audio level to patched

radio during Call Director patch operations. Also see pot 1. 21 Select Recorder Output

Adjusts level of audio applied to the select recorder. 19 Select Audio Output

Adjusts level of audio at an internal Enhanced Audio Enclosure reference point on

Audio System Board. Affects select speaker, select recorder, operator headset earphone

and supervisors headset earphone audio levels. 29 Select Speaker Output

Adjusts level of audio applied to the select speaker. This pot is not used as a volume

control. 30 Unselect Speaker 1 Output

175

190

128

Adjusts level of audio applied to the first unselect speaker (unselect speaker 1). This pot

is not used as a volume control.

LBI-39101 BOARD SET-UP

AUDIO

SYSTEM BD.

ENHANCED AUDIO ENCLOSURE AUDIO CIRCUIT LOCATED IN /

POT NO.

23 Unselect Speaker 2 Output

Adjusts level of audio applied to the second unselect speaker (unselect speaker 2). This pot is not used as a volume control.

24 Unselect Speaker 3 Output

Adjusts level of audio applied to the third unselect speaker (unselect speaker 3). This pot is not used as a volume control.

22 Unselect/Telephone Recorder Output

Adjusts level of audio applied to the unselect recorder. This audio may be from an unselect source or from the Call Director's telephone line.

2 Call Director Output

Adjusts level of audio to Call Director's telephone line (from radio). Also see pot 18.

25 Supervisor Headset Earphone Output

Adjusts level of audio applied to the supervisor headset earphones. This pot is not used as a volume control.

Table 3 – Digital Pots

ADJUSTS *

(Continued)

TYPICAL SETTING

128

175

130

26 Operator Headset Earphone Output

Adjusts level of audio applied to the operator headset earphones. This pot is not used as a volume control.

* See Audio System Board maintenance manual for specific test points and additional alignment information.

** Numbers represent typical digital pot settings only. Factory settings are subject to change without notice as circuit improvements

occur. DO NOT ADJUST any digital pot from factory setting unless a full understanding of the consequences is known.

Specifically, with the volume control fully counterclockwise and a nomimal audio level of 436 millivolts rms at a frequency of 1kHz from the Enhanced Audio Enclosure, the audio output level from the speaker will not drop below approximately 0.38 milliwatts or 55 millivolts rms across the 8-ohm speaker. This wattage figure assumes SW1 position 2 is also "OFF" or "OPEN", selecting the 2-watt maximum volume level. With SW1 position 2 selecting 5-watts, the minimum volume level is approximately 1.25 milliwatts or 100 millivolts across the 8ohm speaker.

When SW1 position 1 is "ON" or "CLOSED", the

recommended, as it should be adequate in nearly all dispatch environments. The 2-watt setting is selected by setting the switch "OPEN" or "OFF". When the switch is "CLOSED" or "ON", the maximum output power is increased to approximately 5 watts.

Both wattage figures assume the volume control on the Speaker Assembly's front panel is set at maximum (fully clockwise) and a nominal audio signal input level of 436 millivolts rms at a frequency of 1 kHz is applied to the Speaker Assembly.

minimum volume level feature is disabled and audio from the speaker may be completely turned off by rotating the volume control fully counterclockwise. This setting should

12 3

be used with caution since calls, especially calls on unselect audio channels, are more likely to be missed.

Figure 3 −− Speaker Amp Board SW1 Factory Setting

Maximum Volume Level DIP Switch (SW1 Position 2)

SW1 position 2 allows setting of the speaker's maximum volume level to either 2 or 5 watts of output power. Normally, the factory setting is 2 watts. This level is

At this time, configure SW1 as required. If the Speaker Assembly is a desktop (with case) style, disassemble it by removing the four (4) screws from the back of the case and then separate the case's front and rear sections.

INTERCONNECTING THE EQUIPMENT LBI-39101

RS-422 BOARD

Most PCs used within the C3 Maestro console application are equipped with a plug-in RS-422 capable board for serial data interfacing to the CIM within the CEC/IMC Digital Audio Switch. Normally, no changes from

the factory set-ups are required on this board or any other related serial COM port hardware within the PC. However,

it may be beneficial to review the information in the section entitled " "

Control Data Link

CEC/IMC INTERCONNECTIONS

" (page 12) at this time.

", subsection

INTERCONNECTING THE

EQUIPMENT

A C3 Maestro dispatch console system equipped with an Enhanced Audio Enclosure requires the following interconnections. See Figure 1:

•

PC-to-CEC/IMC Data Concentrator Card control data link

punch blocks and/or 4-wire modem equipment. A 100-foot (30.5 meters) pre-wired cable is supplied for co-located RS-422 hook-ups.

•

Enhanced Audio Enclosure-to-CEC/IMC Audio Concentrator Card audio link

twisted pairs, phone lines, punch blocks and/or mux equipment. A 100-foot (30.5 meters) pre-wired cable is supplied for co-located audio hook-ups.

– Via twisted pairs, phone lines,

– Via 600-ohm

•

Enhanced Audio Enclosure-to-Boom/Gooseneck PTT and Monitor Switches

•

Enhanced Audio Enclosure-to-Footswitches

•

Enhanced Audio Enclosure-to-Speaker Assemblies

•

PC-to-Standard PC Keyboard

keyboard is only utilized during console start-up and maintenance operations.

In addition, the following interconnections are required

for optional equipment, if employed:

• •

Enhanced Audio Enclosure-to-Recorder Equipment

•

Enhanced Audio Enclosure-to-Pager

•

Enhanced Audio Enclosure-to-External Equipment Controlled by Relay Form-C Contacts

•

Enhanced Audio Enclosure-to-Call Director

– The standard PC

NOTE

Unless otherwise noted, all procedures in this manual should be performed in the order presented.

•

PC-to-Enhanced Audio Enclosure control data

– A 9-foot (2.74 meters) pre-wired cable is

link

supplied for this control data link.

•

Enhanced Audio Enclosure-to-Dispatch Keyboard

•

PC-to-Video Display Monitor

•

PC, Video Display Monitor and Enhanced Audio Enclosure AC Power Connections

In addition, the following connections are required if the related external devices are used with the console:

•

Enhanced Audio Enclosure-to-Desk Mic

•

Enhanced Audio Enclosure-to-Supervisor Headset Jack Box

•

Enhanced Audio Enclosure-to-Operator Headset Jack Box

•

Enhanced Audio Enclosure-to-Boom/Gooseneck Mic

CEC/IMC INTERCONNECTIONS

The C3 Maestro console interfaces to the CEC/IMC via a full-duplex serial control data link and a 4-wire audio connection for the select audio and microphone link. In addition, each unselect speaker at the console requires an additional 2-wire connection from the CEC/IMC. Also, if the console is interfaced to a Call Director for Call Director telephone patch operations, an additional 4-wire audio link between the C3 Maestro and the CEC/IMC is required. See Figures 1 and 6 and Table 5.

As shown in Figures 1 and 6, all CEC/IMC interconnections are made via Concentrator Cards. These cards are located at the back of the CEC/IMC cabinet. Control data connections are made via Data Concentrator Cards and audio connections are made via Audio Concentrator Cards. Typically, as shown in Figure 6, these connections are extended out of the CEC/IMC cabinet via Telco cables and terminations are actually made at punch blocks located external of the CEC/IMC cabinet.

CEC/IMC Concentrator Card pin-out details are listed on the customer-specific system documentation print-outs. These print-outs are included with the CEC/IMC when it ships from the factory. See the CEC/IMC Digital Audio

LBI-39101 INTERCONNECTING THE EQUIPMENT

Switch Customer-Specific System Documentation

maintenance manual, LBI-38939 for sample print-outs and complete print-out explanations.

Control Data Link

Overview

Either an RS-422 (four-wire) or an RS-232 (three-wire) full-duplex serial control data link may be employed between the console and the CIM within the CEC/IMC. Since RS-422 interfacing is superior to RS-232, PCs used within the C3 Maestro console application normally ship from the factory with an RS-422 serial port provided for this purpose. RS-232 has poorer noise performance than RS-422 and therefore, it should never be used for cable runs more than 50 feet (15.2 meters) in length. RS-422 connections may be up to 4000 feet (1219 meters) in length.

If required for a remote console installation, full-duplex 4-wire data modems can be used between the C3 Maestro and the CEC/IMC. Typically, the PC-to-modem and modem-to-CEC/IMC interconnections must be made via RS-232 interconnections since many data modems do not provide RS-422 hook-ups. These RS-232 interconnections should also not exceed 50 feet. See the following subsections for additional remote console wiring and modem configuration details.

At the C3 Maestro, RS-422/RS-232 serial control data connections terminate at the PC's serial COM port. Normally, COM1 is utilized for CEC/IMC interfacing. This serial port is normally provided by a plug-in RS-422 board inside the PC as described in the following section.

RS-422 Interfacing (Co-Located Hook-Ups)

In most cases, the PC used in the C3 Maestro console system is not equipped with a main ("mother") board RS-422 capable serial COM port. Therefore, a plug-in RS-422 capable interface board is installed in one of the PC's internal expansion slots and utilized for CEC/IMC interfacing. If the plug-in RS-422 board's serial port is configured as COM1 (normal factory configuration), the PC's main board COM1 port is disab led to p revent conflicts. Likewise, if the plug-in RS-422 board's serial port is configured as COM2, the PC's main board COM2 port is disabled. Depending upon the type of PC used, disabling of the main board's COM port is done via either a DIP switch, jumper, or a BIOS set-up program. For COM port enable/disable configuration details, refer to the section entitled "

PROCEDURE PROGRAM

manufacturer's documentation.

RS-422 board is manufactured by B&B Electronics. Its

SOFTWARE INSTALLATION AND SET-UP

", subsection "

PC CMOS SET-UP

" later in this manual (page 26), and the PC

The currently approved (factory installed) plug-in

model number is 3PXOCC1A (part number 344A3927P38). Subsequent to the writing of this manual, additional boards may be approved.

Factory-installed plug-in RS-422 boards are configured correctly before the PC ships from the factory. This configuration includes setting DI P switches and jumpers on the plug-in board and disabling the PC's main board serial COM port per manufacturer's instructions.

Configuration for the 3PXOCC1A board is:

Address Switches (S1)

Interrupt Jumper IRQ4

Jumpers1 JP2 − JP5

Jumpers

JP6 − JP7

(MSB)

11111111

= 3F8 Base Hex Address

Upper Position

Lower Position

(LSB)

If any other RS-422 plug-in serial board is used the following board configuration is recommended:

COM Port COM1

Port Address 3F8

Interrupt IRQ4

Normally, a pre-wired 100-foot (30.5 meters) cable is supplied with the console equipment package for RS-422 control data interconnections between the CEC/IMC and a co-located C3 Maestro console. The cable's part number is 19B804083P3. It has a female DB-25 connector on one end for mating to the RS-422 male DB-25 connector at the PC. The other end is "pig-tailed" (not terminated) so the cable's 24-gauge solid wires can be punched down to the correct terminals at the required CEC/IMC punch block.

If using the supplied control data cable, mate its female DB-25 to the PC's RS-422 male DB-25 connector, route it to the CEC/IMC, shorten the cable as required, and punch the wires to the correct terminals. See Table 4 or the cable's assembly diagram near the end of this manual for wire color coding. Also see Figure 6A and the cable’s assemble diagram on page 36.

Add ten (10) to jumper numbers for earlier 3PXOCC1A

boards (JP2 thru JP5 = JP12 thru JP15).

Add ten (10) to jumper numbers for earlier 3PXOCC1A

boards (JP6 thru JP7 = JP16 thru JP17).

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