ac attendant console

AC Attendant Console

1 AC Attendant Console1.1 GeneralThe attendant console provides an answering station for the Hicom 300 system in allowing an attendant/operator to process external and internal calls.The basic version of the attendant console consists of the following units:Detachable keyboard with keys and LEDs

Swivel and tilt monitorThe monitor displays digit, operating statuses and verbal commentaries.

Fixed base with control electronics (control box)

The connection sockets and the reset key are located at the rear. .Maximum number of attendant consoles + standby attentant console(s):Hicom 340.3 =2 AC

Hicom 370.3 =12 AC

Hicom 390=37 AC

Hicom 391.1 =..

Blind operator attachment: 1-2 per system, connected to any attendant console.1.2 Cabling of Attendant ConsoleThe basic version can be supplemented or expanded with the addition ofa blind operator Braille unit, Hicom BLIS,via the distribution box (ACDE) of the attendant console, (one ot two per system). The data interface to the system is the 15-point sub-miniature socket strip.

a tape recording unit,via the tape unit socket provided, for selective recording of calls,

a second headset,via the existing second jack in the keyboard

an external ringing unit,controllable by means of a relay contact, and

an external controller/processor.

The attendant console is connected at the system jack of the control module ACCO to a distribution box (ACDE) by means of the system connecting cable. The ACDE is connected to the main distribution frame MDF via a system cable. The a/b wires connect the attendant console to an SLMB (burst mode) interface for voice and signaling transmission.The -48 V power supply is derived from the system via parallel wires in the system cable to increase the conductor cross section (see also Installation Manual)

1.3 Keyboard Unit1.3.1 GeneralThe keyboard contains the devices for conversion of the manual inputs to electrically coded commands and for the conversion of coded system responses into visual and audible signals.A microcomputer scans all keys cyclically for operation and suppresses key bounce with the help of software.1.3.2 Keyboard ACKBThe keyboard housing consists of 2 injection-molded parts connected by means of snap fasteners.1.Keyboard module ACKPThis is attached to the upper section and contains the contacts (carbon pads) for the switch pad, the sockets for LEDs and the necessary resistors. It is connected to the keyboard control module by way of flexible plug-in cables.

2.Keyboard control module ACKCThis enages in the lower section and contains the necessary electronic components for:

a)interrogating the keyboard matrix

b)Activate the LED displays

c)data processing and interfacing to control module (ACCO)

d)the two headset jacks (right and left) for the handset/ headset.

1.3.3 Keys1.Repertory KeysThe 42 repertory/direct destination select keys can be programmed flexibly.Keys 41 and 42 are the routing/trunk group keys.

2.Function and feature keys:29 keys for call processing and maintenance.

3.Digit keysA 12-digit keypad is available for the input of digits and special characters 1,...,9,0,*,#.

4.Setting keysAbove the digit keypad there are 4 control keys for the adjustment of:

a)the volume of the two-tone ring

b)the basic pitch of the two-tone ring

c)the brightness of the screen

d)the screen display mide (normal/inverted)

1.The volume of the two-tone ring can only be altered in the ringing state (ringing tone on), and to one of 12 settings from zero to maximum, using the ringing tone control keys.Key + : louderKey - : softer

2.The basic pitch of the two-tone ring can only be altered when the headset jack is removed. One of nine settings from 266 Hz to 1000 Hz can be selected with the aid of the ring control keys.Key + : Basic pitch higherKey - : Basic pitch lower

3.The brightness of the screen can be adjusted to one of 10 settings with the brightness control keys:Key + : brighterKey - : darker

4.If both keys are pressed simultaneously (for at least 100 ms), the monitor display is inverted.

1.3.4 Light Emitting DiodesThe LEDs light up to indicate that the key function has been activated by the attendant or flash as a request/reminder to the attendant to press the key (e.g. incoming call, system message, call waiting...).The duplicated LEDs are of plug-in design and can be replaced from the outside with the aid of a lamp extractor tool once the LED cover plate has been detached.Table 1 AC LED status display

LED statusExpanation

OffIdle state - key available for use

OnOperation after interrogation/button action

rapid flashing 500/500msRequest for interrogation

slow flashing 1500/500msCall in waiting state-request for interrogation

1.3.5 Audible IndicationsA piezo transducer serves as the electro-acoustic signal converrter for call signaling (two-tone ring) and for signaling operating errors (alerting tone).1.Call signaling

a)Continuous ringing:Two different forms of call signaling are possible:Continuous two-tone ringing with the selected basic frequency and volume.

b)Special ringing:Cadenced two-tone ringing with the selected basic frequency and volume:300 ms on, 400 ms off, 300 ms on, 1000 ms off.Disconnection takes place upon system command after the corresponding call key has been actuated.

2.Signaling operating errorsIf 3 or more keys are pressed simultaneuously, or 2 keys are pressed within the space of 10 ms, an altering tone is emitted (2000 Hz for 300 ms). This tone is intended to draw the attendant's attention to the operating error.

1.4 Monitor UnitThe 10" monitor is the attendant console's display device for system messages and system acknowledgements in text form, and for local test result displays.The display comprises 12 lines of 40 characters from a modified ASCII character set. The character display type can be set by means of a software command:positive: light character on dark background

negative: dark character on light background

1.4.1 Monitor ACMOThe monitor consists of the complete chassis (plastic housing section and metal screening cage) with the display tube and the modules. The monitor housing and the basic housing ACCB (control box) are connected by way of a turn-lock connector and secured by means of a catch to avoid unintentional detachment.The cable to the ACCO is led through the center of the swivel joint.The cover (hood) of the monitor housing is attached to the chassis by means of a turn-lock snap fastener and can be opened with the aid of a screwdriver.

1.Monitor module ACMPThe ACMP contains the electronic components for control of the tube and generation of the high voltage. The adjusting potentiometers are protected against flashovers and short-circuits by means of an insulating layer. (For notes on alignment see maintenance notes).

2.Power supply module ACPMThe ACMP contains the DC-DC converter for generation of the 12V supply voltage required by the ACMP, and also the interference suppression components.

3.Cathode-ray tube connection module ACCC;The ACCC contains the tube socket, the spark gaps and the plug contact for the 'aquadag' ground and is connected to the ACMP module by way of two plug-in cables.

1.4.2 Control Box ACCBThe control module housing consists of 3 plastic injection-molded sections, which are held together solely by means of snap fasteners. The upper section includes the swivel joint or turn-lock connector for the monitor, while the lower part contains the control module ACCO. The rear cover serves as a protection against accidental contact and prevents detachment of the module and plug-in connections when the snap-in fastener is in place.1.Control module ACCOThis module contains the entire electronic control components, the 5V converter, the plug-in connectors for the monitor cables, and the external keyboard, system, tape unit and bus expansion sockets. (Hicom BLIS connection). The reset key between the system socket and the bus expansion socket can be accessed only when the rear cover has been removed.

2.Interface for controlling tape unit or door opener and supplementary ringing unit

a)A tape unit can be connected to 8-point tape socket X2 for recording speech.The floating making contact of relay T can be used for the activation/ deactivation of the tape unit or to control or door opener. This contact is also connected to the 8-point DIN tape socket (X2) (see figure and under Connection of Tape Unit).The specific function for the customer is dependent on the system software (device handler).

b)The floating changeover contact of relay R is used for controlling a supplementary ringing unit (second ringer). The contact of relay R is connected to the terminal box (ACDE) by way of the 15-point system connector (X4).

1.4.3 Screen DisplaysThe monitor displays are stored as standardized character strings in the terminal device and can be called up as required. In order to avoid lengthy system dialog times, information which comprises a large number of display lines is tranferred by the system to specific display memories at the consoles during e.g. notification (and not only when called up at the terminal). Such information includes:System displays

- Explanation of check funtions- display of possible night options- display of classes of service- display of operating modes- display of repertory/trunk group keys- display of station do-not-disturb groups- display of class of service switchover statusconsole-related displays

- display of date and time- display of seved number redial addresses- display of parked connections- display of booked lines1.5 Supervising by SystemSupervision of the attendant console by the system software is based on statistical analysis of its error messages. In the event of frequently recurring error messages the dependability system initiates a reset or places the attendant console out of service.The SLID component in the interface module (SLMB) in the system detects the occurrence of asynchronism and reports this to the relevant system software.During local test operation the error messages are displayed on the monitor.1.5.1 Shelf-supervisionWhile the attendant console is in operation continuous idle loop testing is taking place in the background. Any errors discovered during this process are reported to the system. These can be displayed on the monitor if required (press the Check key with the headset removed). The data blocks received by the system are checked for correct block length and undefined bytes are treated as unknown commands. In both cases an error messages is sent to the system after an error has been detected. The attendant console reports is current hardware module and firmware status during initialization and if interrogated from the system side.1.System interface supervisionThe STID component supervises the system interface continuously for synchronism. If the system interface remains asynchronous continously for 5 s, a fault message appears on the monitor (flashing error display). This display is canceled either when synchronism is restored (former image displayed again) or in the check mode with an image refresh command.

2.Keyboard interface supervisionThe processorr uC1 monitors the serial keyboard interface. If this interface is interrupted, e.g. by disconnection of the plug (cable between control ACCO and keyboard), a fault message appears on the monitor (flashing error display). The message is only canceled by restoring the serial data connection.Insertion of the subminiature connector in the appropriate ACCO module socket results in an attendant console RESET if the supply voltage is connected.

Error Handling:The errors detected at the attendant console are reported to the system. System interface asynchronism cannot be reported by the attendant console via this interface. The SLID component in the interface module (SLMB) in the system detects the occurence of asynchronism and reports it to the appropriate system software.During local test operation, error messages and displays are indicated on the monitor.The terminal can be reset by means of the reset key if it is not functioning correctly.1.6 Testing and MaintenanceThe attendant console has a local test mode for testing and maintenance purposes. For this functioning the headset jack must be removed and the Check key actuated. The attendant terminal then enters an internal check and test mode in which it displays a special check and test layout on the monitor. Various check and test functions can then be activated by way of the digit keys (menu driven).Actuation of key terminates the particular test function (exception: keyboard test, in which case the Check key and then key must be pressed).1.6.1 LED Display TestThe LED displays are tested by means of digit key . After digit key has been actuated, all the LED displays light up simultaneously for a brief period. After this they light up one after the other (from left to right on the keyboard, starting with the upper row of LEDs). The test can be repeated any number of times.1.6.2 Keyboard TestThe keyboard test is activated by means of digit key . After digit key has been actuated, the image of the keyboard appears on the monitor. The keys are represented as follows:40 destination/repertory keys numbers from 1 to 40

29 function keys rectangular frames

4 setting keys symbols "+" and "-"

12 digit input keys digits 1 to 9, "*" and "#"

Actuation of a key is confirmed on the monitor by inversion of the key display. If this does not take place, there is a fault in the key function.The keyboard test is terminated by pressing the Check key and key in turn.1.6.3 Display of Internal Test ResultsThe results of the internal test routines for all processors are displayed on the monitor after actuating digit key .Three columns indicate the types of faults which have occurred in processors, (b) the number of test runs executed by the particular processor since a RESET and (c) the number of faults detected (classified according to type of fault). The last line but one indicates the system telegrams sent to the attendant console and any faults involved in this process.On line is reserved for an error message for each processor. If a number of errors occur per processor during self-testing, it is possible to advance cyclically to the next error message by means of key .1.6.4 Display of Module and Firmware StatusesThe module and firmware statuses of the control and keyboard control modules are displayed on the monitor by means of digit key . The firmware statuses are stored in the EPROM's of the corresponding processors. The module statuses are coded on the 2 PC boards in binary form by way of 4 solder straps.1.6.5 Maintenance AidsFour test images can be produced on the monitor by means of digit keys to . These images are used for aligning the screen geometry in the course of maintenance work. The setting potentiometers on the ACMP module can be accessed externally through drillholes in the chassis after the monitor cover has been removed (see figure).Maintenance aid 1 Test image raster 1 (large grid patterns)

Maintenance aid 2 Test image raster 2 (chessboard pattern)

Maintenance aid 3 Test image: Hicom symbol

Maintenance aid 4 Test image: full page with standard character set

Digit key is used for displaying the last 192 system telegram bytes in hexadecimal format.The tone ringing can be activated/deactivated and the pitch altered by means of digit keys and .

1.6.6 Opening Attendant ConsoleObserve safety precautions!1.MonitorOpen the monitor:Unlock cover (hood) turn-lock fastener and remove cover backwards.To detach monitor from box:

a)Remove rear cover from box (push in side locks carefully with a screwdriver or similar and detach).

b)Remove all cable connectors.

c)Detach control module ACCO and place it on a conductive surfaces.

d)Open control box by pressing in two locks on lower part of box.

e)Undo connecting lead in upper part of box (cable tie)

f)Rotate monitor until stop is reached (45 degrees)

g)Swivel monitor downward, press in rear monitor catch, turn monitor to 90 degrees position and lift off.

h)Pull back connecting lead through swivel joint.After the control module and the cables have been reconnected, the attendant console - without the monitor - is ready for operration (with obvious limitations!)..Assembly takes place in the reverrse order.

2.KeyboardTwo snap fasteners can be accessed on the lower part of the baseplate through recesses in the housing. The box can be opened up by pressing these brackets simultaneously.

1.7 Operating VoltageThe operating voltage, the minimum level of which is specified as 44 V, is derived from the system voltage. The input voltage at the attendant console must not be less than 36 V and, accordingly, the total voltage drop between the PABX and the power input at the attendant console must not exceed 8 V for a current drain of 0.7 A. This corresponds to a total permissible resistance of 2 x 5.7.The monitor also contains a DC-DC converter in order to generate the 12 V supply voltage required for the ACMP.The attendant consoles are protected by means of a fuse, and circuit breakers on the connection panel PC in the system:One main fuse 6 A

1A per attendant console

1.8 OperationThe attendant consoles are connected to the peripheral SLMB modules (see Installation Manual, Chap. 10).The attendant activates/deactivates the attendant console by inserting or removing the headset jack.After the jack has been inserted, the console is ready for operation in approx. 1 minute.

After the jack has been removed, the system issues the software command for disconnection of the monitor.First the screen goes dark, then after 10 mins. the monitor is deactivated.

If the headset jack is re-inserted within 5 secs. of being disconnected, any held or parked calls can still be answered. Any recalls after this are lost.

The RESET key is located on the back panel of the attendant console.

1.8.1 AMOsACSUAttendant Console Configuration

NAVARAdministration of Static Night Switch Option Data

VFGRAttendant Console Groups

VFGKZAdministration of Attendant Group Dialing Codes

CTIMECustomer-Specific Timers, Switching Unit

1.8.2 Timers1.Period of 5 (3-10) secs. (following removal of the headset jack) within which any held or parked calls can still be answered by re-inserting the headset jack. These calls are lost once the time-out period has elepsed.

2.Screen warmup period 60 (30-90) secs. Only outgoing connections can be set up !

3.If any console (not call status) fails to answer a call within 60 (30-90) secs., automatic night switching of this position takes place and the call is returned to the call distributor.

1.9 Blind Operator Attachment Hicom-BLISThe blind operator attachment is designed as a supplement to the ATND. It consists of a Braille indicator which "displays" 40 + 2 characters simultaneously with a line display on the "screen". The line to be indicated can be selected by means of a 4x4 pushbutton pad. During normal operation the selection process is largely automatic. The Braille indicator, drivers and pushbutton set are contained in a housing which is normally countersunk in a recess in the desk. A control section (installed beneath the desk) contains the rest of the electronic components (processor, I/O, power supply elements).The unit is activated/deactivated by pressing the ON/OFF key (for at least 5 secs.).The blind operator attachment is connected to the control section of the associated ATND. One of the two connector locations in the control distribution box ACDE is required for the power supply of the blind operator attachment, with the result that only one console can be connected.Hicom-BLIS1.ConnectionThe ABLIS adapter and the Braille indicator are plugged into the control distribution box ACDE of the attendant console, and are supplied with the required feed voltage from the system voltage.The blind operator terminal is supplied with feed voltage from the Hicom 300 system, the minimum voltage of which is 44 V.Since the DC converters used require a minimum input voltage of 36.5 V the voltage loss between the system and the blind operator terminal must not exceed 7.5 V. This must be ensured by using the correct line diameter for the connecting lines. The internal voltage supply of the BLIS control unit is electrically insulated from the system voltage, and the electronic components are earthed via the data interface and thus via the attendant console ground wire.The data interface to the attendant console is the 15-point sub-miniature socket strip.

2.Cable connections and initial startupThe cables must be attached in sequence, as follows:

a)Plug in connecting lead S30807-Z5452-X200 at the Braille indicator and the ABLIS adapter, and tighten lock screws.

b)Connect the ABLIS adapter and the Braille indicator to the attendant console interface (C39334-Z38-C44). Once the two leads (S30807-Z5366- X500) have been connected, the Blind Operator Attachment is under power.

c)Wait until the device has completed its self-test (Braille indicator is tested).

d)Connected the ABLIS adapter to the connector strip marked "Extension" on the attendant console (cable S30807-Z5452-X100, connect ABLIS end first) and tighten the lock screws. The Blind Operator Attachment is now in service.

Any HW errors of the control unit or the Braille indicator must always be repaired on a part-exchange basis.1.9.1 ControlsAll controls are located in the control unit and consist of the Braille indicator and the operating keys.1.Braille indicatorThe single-row indicator contains a total of 42 modules (characters), each with 8 pins. The two modules positioned separately to the left are for the row number. Hardware activation is the same for all modules.The tactile pins are raised and lowered electromagnetically and are locked when in the raised position. They therefore remain in position irrespective of the force applied to them by the operator.The texts on the indicator are formed by the software on the basis of the messages from the ATND and the key actuations.

2.KeysThere are 16 keys on the right-hand side next to the Braille indicator.The 4 keys in the first column have control functions; the remaining 12 keys are used to input the particular line on the AC screen which is to be reproduced on the Braille indicator..Table 2 Hicom blind operator attachment (BLIS) keys

Backward 1 2 3

Forward 4 5 6

Status 7 8 9

On/Off10 11 12

1.9.2 Testing and Maintenance1.Device Self-testingThe device can be checked by means of the self-testing facility without any further aids except the connecting cable to the console). This is also possible without the console or without the Hicom system, provided that the power supply (35 V-70 V, min. of 1 A) is available.Once the supply voltage has been applied, the unit is in the call processing mode. If the keys "Backward" and "Line 12" are actuated, the device switches to maintenence module until the keys "Backward" and "Line 12" are actuated again.In the maintenence test, after the different keys have been actuated on the Braille indicator, various test patterns are displayed:

Key actuation "Row 1"All pins down, except for module M1 pin S1, M2-S2, M3-S3, M4-S7, M5-S4, M6-S5, M7-S6, M8-S8. This produces a regular pattern which can easily be checked.

Key actuation "Row 2"Same pattern for module 9 to module 16




Key actuation "Row 6"Same pattern for modules 41, 42

Key actuation "Row 7" to "Row 12"The previous patterns inverted.All pins raised, except for those referred to above.

Key actuation "Backward"All pins down in inoperative position

Key actuation "Forward"All pins raised

Key actuation "Status"Software status is displayed

Key actuation "On/Off" (press for approx. 5 secs.!)Set all the pins alternatively up and down approx. every 4 secs. until another key is actuated.

The patterns for "Row 1" to "Row 12" indicate possible faults on the driver board and in the control leads of the Braille indicator. If, for example, the same pin is raised in two modules, there is a short in the module lines.The patterns for "Forward", "Backward" and "On/Off" can be used to test the Braille indicator.2.MaintenanceIn the course of operation the Braille indicator collects a certain amount of dirt; accordingly, it must be disconnected about once or twice per year and cleaned in an ultrasonic bath.Since the device is divided into two parts (electronic control section and operating section), it is possible to remove the operating section independently for maintenance purposes or replacement.

1.10 Connection of Tape UnitZA tape unit can be connected to the 8-contact take jack X2 for recording speech.The floating normally-open contact of the T relay is available for connecting and disconnecting the device if it is not already used for the door opener. This is likewise fed to the 8-contact jack (see also Fig. Connection of console relays R and T).The feature "incoming CO call recording" can be activated and deactivated as follows:Unplug the headset and press the memory key

Main menu CHECK MODE appears

Press keys 'CO', 'Tape' and '1' in sequence. This activates the feature.

Press keys 'CO', 'tape' and '0' in sequence to deactivate

The pin assignment of the jack is listed in the following table.The assignment of pins 1 to 5 complies with DIN 41512 (magnetic tape devices). The output voltage is 0.5 to 2 V.

Table 3 AC Recorder Connection

Pin-No.Signal

1 unassigned

2 Ground

3 Voice (IF output)

4 unassigned

5 linked to pin no.3

6 unassigned

7 TAPEC (T relay contact)

8 TAPENO (T relay contact)

To connect the Atis cassette recorder GC 100 E, make the following settings via DIP-FIX switches at the control module (see also figure):1.Normal operationOperation via keys and remote control connection

2.Normal rewind (REWIND)Start the drive with START or RECORD keyContinuous reverse, reverses the drive direction at end of tape

ac attendant console

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