SC4x0 Technical manual
Contents
1. Dimmer input value in at max Dimmer input value in at 5 volt The values for Aotiset 4 Acain can be entered via set parameter xx After entering these values backlight level should be approx 0 at 5 volt and 100 at max NOTE Extern dimmer are optionally and require additional hardware 9 11 Local external microphone If a remote microphone is required to work in conjunction with local or external speaker select this option from the setup menu level 3 The external microphone is selected by use of a switch connected to the headset PTT input This mode can be used to extend the operation of the telephone from another physical location e g control desk The local push button is operated as if the phone was in local PTT mode using the PTT mic button SeaCom Rev 2 00 SC4x0 Technical manual 10 Parameter list 10 1 Level 1 parameters Parameter Range Nominal level Av 1 Speaker volume 0 100 in 16 steps Factory setting 31 69 or step 11 Each step is equal to 3dB Backlight level 0 100 in 25 steps Ringer volume 0 100 in 16 steps Factory setting 44 69 or step 11 Each step is equal to 3dB Factory setting Tone 1 PA volume 0 100 in 16 steps 69 or step 11 Factory setting 37 Each step is equal to 3dB Bell signal Tone 1 Tone 8 10 2 Level 2 parameters Parameter Range Auto answer 0 50 O disabled Factory setting2. SeaCom Page 9 of 34 Rev 2 00 SC4x0 Technical manual Page 10 of 34 3 2 Display modes When display is not used for display the menu system it will enter idle state or mode Idle mode is the initial display mode or basic mode From idle mode it can enter dial mode busy mode error mode or menu mode 3 2 1 Display Idle mode When the telephone is in idle display will show the following info Date amp time __ Status field Function key text 3 2 2 Display Busy mode When the telephone is in conversation mode e i the phone is busy display will show the following info If mute state speaker or hands free changes status field is updated If change to another audio connection e g handset is made it will be shown in the display 3 2 3 Display Error mode When the telephone detects missing line it will enter error mode Here the cause of current error will be shown as flashing text or error code Currently only line error exits SeaCom Rev 2 00 SC4x0 Technical manual Page 11 of 34 3 3 Call indicator Call indicator has two purposes Primary purpose is to indicate line state Secondary purpose is to indicate lost calls amp system error Off Line is idle e Rapid flashing Line is ringing e Steady light Line is busy e 1Hzflashing Line or system fault e Short flash Missed calls If flashing but no line error is shown a system e
3. mf mdmp state xxxx smic sspk sinp srly spwm reset wb ww wl wdt help will cancel all audio processing and reset the codec hardware interface will engage the codec to produce a 1kHz sine signal to amp and line will engage the codec and pass audio from mic to line from line to speaker will twist output channels on the codec on off used pass audio from mic to speaker will set gain to speaker to the step xx in gain table 0 20 will set gain to line to the step xx in gain table 0 20 will display current system info software info error info re boot statistic will display statistic about lifespan temperature statistics will display current relay status will display info re software and is used only for sw development debug will display content of stated NOV memory bank ID will monitor amp display all inputs Enter will cause 1 sec auto new line will monitor amp display line values Enter will cause 1 sec auto new line will monitor amp display 16kHz commands from exchange will monitor amp display audio switches Enter will cause 1 sec auto new line will monitor loop speed values and is used for software development will monitor amp display memory location values and is used for development will display a memory block of 256 bytes and is used for software developme
4. If data was being entered operation is canceled and old data restored If a call is received while operating the menu system immediate timeout is generated and the telephone will revert to idle to show incoming call or idle state A few special menus are excepted from the general timeout These are the dial function and some monitor functions in the hidden menu 3 1 Menu levels There are 3 levels in the main menu system e Level 1 is common used settings volume ringer level etc e Level 2 is primary settings memory dial setting etc e Level 3 is secondary settings Settings used for installing the phone There is one level in the hidden menu If more detailed information re the menu system is required please refer to user s manual SeaCom Rev 2 00 SC4x0 Technical manual Level 1 EXIT Speaker volume Backlight Ringer volume P A volume Bell signal Calls out Calls in SET_UP_MENU Level 2 Main Menu Auto answer Auto busy Direct in Hands free External speaker Date amp Time Speed dial Memory 1 6 Special menu Level 3 SET_UP_MENU Dial signal Loop dial type Remote PTT Remote Hook switch Lcl Ext Mic Headset type Headset VOX Gain local microphone Gain handset microphone Gain headset microphone Gain external microphone loudhailer Relay mode Relay hold off Contrast display Hidden menu System Info Monitor line Monitor input Set param XX Recall Factory Erase EEPROM Reset Sys test
5. When using headset always check the type of microphone If it comes with an eletrect condenser type changes needed to be made to factory settings Enter the menu system to select matching type Always make gain adjustments AFTER selecting type of microphone The headset can be used with full duplex or in PTT mode However in full duplex mode when connected to another phone using hands free some voice control may be needed to maintain control of speech direction VOX will raise or lower gain towards the line for better speech detection at the hands free end This will enhance the speech quality by raising the gain when speaking into the headset microphone and lower it when not If voice switching is used at the hands free end it will ease the detection of speech However if speaking at the same time it may difficult to hear what is said at both ends so it requires a little practice to learn to speak in shift for perfect connection 9 3 Adjusting microphone gain A key issue for best performance is correct adjusted microphone gain This phone is designed for use in very noisy areas but may just as well be used In quiet areas However this dynamic span can only be achieved by adapting the microphone gain to the actual installation In most cases factory settings will work just fine However if used in noisy areas gain must be lowered to avoid distortion and signal saturation A high level of background noise requires the user to speak ver
6. 0 Auto busy On Off Factory setting Off Direct in On Off Factory setting On Hands free Disabled 10dB 40dB in steps of 5dB External speaker On Off Factory setting Off Date amp time 00 01 01 00 00 00 99 12 31 23 59 59 00 00 00 xx xx xx not set Speed dial One number for each of F1 F2 8 F3 Memory dial Six numbers SeaCom Page 23 of 34 Rev 2 00 SC4x0 Technical manual Page 24 of 34 10 3 Level 3 parameters Factory setting DTMF Parameter Range Notes Dial signal LoopDial or DTMF LoopDial is loop disconnect dial or pulse dial DTMF is tone signal dial Loop dial type International or Swedish Factory setting International International O 1 pulse 1 2 pulses Swedish 0 10 pulses 1 1 pulse Remote PTT Normal or Loudhailer Factory setting Normal If set to loudhailer headset PTT input will activate loudhailer only Headset can be operated from keypad amp loudhailer can be placed at a remote location Remote Hook sw Normal or Loudhailer Factory setting Normal If set to loudhailer hook switch input will activate loudhailer only If no handset is connected hook switch input can be used for loudhailer PTT if placed at a remote location Local ext mic On or Off Factory setting Off When On special external mic mode using local speaker and headset mic Factory setting Of
7. 9 4 Relay function The relay function is used for external ringing indication in e g E R or for connecting a electro mechanical bell The relay function can be selected to give indication on telephone calls PA calls or if telephone is in use The last is intended for disconnecting any local speaker for making PA calls to a system outside the exchange to avoid feedback through the telephone The relay function can be programmed as inverse function is power fail indication is needed 9 5 Dial signal type Normally DTMF signals are use to dial numbers However if connected to older systems or special adoption is needed the telephone can be programmed to use pulse dialing loop disconnect Pulse dial can selected for international or Swedish mode Pulse dial using earth connect mode is not possible 9 6 Hands free voice control If the telephone is to be used in very noisy areas either PTT mode manual mode or stability margin above 30dB should be used Performance can be improved by adding an external speaker to work in parallel with the local speaker and raising the stability margin 9 7 Bell signal and volume There are 8 different bell signals to select from Some are low tone some are high tone Two have the sound equivalent to an old mechanical bell The ringer has its own adjustable volume setting The volume can be set from menu level 1 NOTE Setting the volume above step 11 will cause distortion of the ringer signal and may c
8. baud 3 4800 baud 4 9600 baud 5 19 2kbd 6 38 4kbd 7 57 6kbd Factory setting 8 115 2kbd 13 UART format 0 Off 1 7bits no parity 1 stop 2 7bits even parity 1 stop 3 7bits odd parity 1 stop 4 8bits no parity 1 stop 5 8bits even parity 1 stop 6 8bits odd parity 1 stop SeaCom Rev 2 00 SC4x0 Technical manual Page 26 of 34 14 Global Var1 0 65535 Used for SW development 15 Global Var2 0 65535 Used for SW development 16 Speaker relay delay 0 2 2 0 Cut in delay for ext speaker 17 Busy gain level 50 200 Signal level to busy detector 18 Busy detection maskl 0x0000 OxFFFF Mask set tone pattern enab Factory is 0x0006 SeaCom Rev 2 00 SC4x0 Technical manual Page 27 of 34 11 Serial monitor The serial output is to be used only for production test or field test All technical data is based on this interface is not connected The interface is NOT certified for field use e i EMC proof and absolutely great care should be take not to connect any device to this interface besides an electrically isolated monitor device and for limited test purpose only Connecting to this interface poses a great risk of introducing noise as ground current may flow through internal 0 volt reference and cause disturbance depending on the actual connection setup If connected in the field for testing always use an isolated interface
9. no common voltage to ground from power supply input filter This can be a problem if a separate power supply is used for the SC4x0 If still a problem connect 0 volt from separate supply to O volt of the supply used to power the exchange However it should be possible to run on a separate supply Make sure PE is properly connected Make sure no current is flowing via this unit e i no ground leak errors Make sure nothing is connected to the small PCB connector on the component side next to the internal speaker 12 5 No direct in no PA or no command call Check if direct is disabled in the menu amp check jumper is set on line interface unit older board units Make sure the exchange settings are correct for the line in question 12 6 Dialing problems Check dial type settings in the menu especially if pulse dial is used If using pulse dial make sure to select correct type Swedish or international 12 7 Low or distorted sound from microphone Check microphone type wiring amp polarity and make sure gain is set to match the current setup can be checked from menu If it is the headset microphone make sure to select correct type of microphone SeaCom Rev 2 00 SC4x0 Technical manual 13 Technical specifications 13 1 Connectors Page 30 of 34 All connectors are located on the back of the PCB The PCB is an integrated part of the front part of the telephone For the SC420 P420 this means the box must be opened to get ac
10. 11 1 Function This interface is used for factory test and device debugging A number of commands are available for manual control and test of audio path It is possible to start a tone signal generator for test of codec amplifiers and line interface thus testing can be made without injecting signals It is possible to route signal from any audio input to any amplifier thus it is possible to do a manual test of each microphone input It is possible to monitor all input signals line light PTT amp Hook for test It is possible to monitor control signal from the exchange It is possible to activate all audio switches and relays It is possible to partly or totally erase eeprom memory It is possible to readout error stack and temperature statistics used for manufactory statistic material to improve future designs Some commands require the device to set into a specific internal system state of operation for command to succeed E g erase of eeprom is not possible unless a specific state is set to prevent accidental erase 11 2 Commands Some commands require arguments and or specific state other will ask for arguments presenting a list of choices codec off codec sine codec pass mirror on mirror off sgts xx sgtl xx gsin getb grly glos gstk mban minp mlin mcmd maus mlos mb mw ml
11. E Hook SW OV gs Line ov a Tip Dimmer D i Ring Z os PE Frame The drawing below shows all connections and number of wires Ext speaker Loudhailer Fr Handset Keypad AN 24v 4 gt Line 2 Headset Dimmer 7 optional 2 8 1 Example of a simple set up with headset This example shows how to connect supply amp headset to the telephone 24V ov PE SC410 420 TIA To bell or alarm relay coil NOTE If connected to DC coil use protection diode Relay COM Relay NO or NC Headset Mic Headset SP Line Headset PTT PE PE __ NOTE If shield is connected at APBX do NOT connect to PE at telephone end Always only connect one end due to possibly high ground current when used off shore SeaCom Rev 2 00 SC4x0 Technical manual 8 2 Example of a simple set up with handset This example shows how to connect supply amp handset to the telephone T2A PE LA 8 Hook Sw signal Hook Sw OV PE SC410 420 TIA 7 EEE Relay COM Handset Mic Handset SP To bell or alarm relay coil NOTE If connected to DC Relay NO or NC coil use protection diode une PE NOTE If shield is connected at APBX do NOT connect to PE at telephone end Always only connect one end due to possibly high ground current when used off shore 8 3 Example of s
12. EC 60945 e Keypad is according to ITU T E 161 e Compass safe distance gt 7m e Software ID 2007001 e Software rev 091007 e All produced units are marked with type id and serial number WARNING Do not disassemble the device as high voltage may present on the PCB or terminals Telephone line signal may contain voltage ranging from 48Vdc up to 130Vac peak Always switch off ALL power or disconnect ALL terminals before disassemble DO NOT REMOVE PROTECTIVE EARTH PE when device is operational ONLY CONNECT POWER TO SUPPLY TERMINALS amp RELAY TERMINALS IF SUBJECTED TO EXCESSIVE CURRENT PCB MAY CATCH FIRE THEREFOR ALWAYS USE FUSED POWER SUPPLY ESPECIALLY ON RELAY TERMINALS PROTECTIVE MEASURES ARE TAKEN TO PROTECT THIS EQUIPMENT DEVICE WILL TRY TO DISCONNECT IT SELF BY SHORTING THE SUPPLY VOLTAGE IF IT EXCEEDS 33V DEVICE WILL TRY TO DISCONNECT IT SELF BY SHORTING THE SUPPLY VOLTAGE IF CONNECTED WITH REVERS POLARITY DEVICE IS INTERNALLY SEQURED BY A THERMAL FUSE OF 1 5A HOWEVER PEAK CURRENT EXCEEDING 1 5A WILL OCCUR UNTIL FUSE IS TRIPPED SeaCom Rev 2 00 SC4x0 Technical manual Page 7 of 34 2 Overview Local Speaker Display Vol Backlight Speed dial Function keys Menu navigation Menu key Mem dial key Call indicator Light sensor Numeric keys Local Mic OE Redial Pause COC R key Hands free Key ker k PE COCR Local PTT 2 1 Display The display is a 3 line 16 char dot matrix displa
13. SC4x0 Technical manual Page 1 of 34 SC4x0 Technical manual Abstract This document is the technical manual for SC410 a high end flush mount telephone for wheelhouse amp ECR SC420 a high end bulkhead mounted heavy duty telephone for E R etc Doc ID Revision history Date D Rev S Rev Init Comment 2008 05 28 01 00 080409 LAF Document created 2008 11 12 01 01 081106 LAF Document updated to new hands free funk 2009 10 07 02 00 091007 LAF Busy detect local external mode SeaCom Rev 2 00 Technical Manual SC410 SC420 P410 P420 sama CIA EDEDICI WL OJO 7 8 2 CIDE bx SEACOM S ren Frichs Vej 38K DK 8230 Aabyh j Denmark Phone 45 86 296 297 Fax 45 86 136 692 info seacom dk www seacom dk SC4x0 Technical manual Page 3 of 34 Contents 1 INTRODUCTION etsende boletin lord AO 6 1 1 Purpose and Scope si s enie e ee siiwss cents dene adan 6 1 2 Required approval informationN cooococccccccconcconcconncnnnnonnnnnnnnnnnnnnnnnnnnonnnnnnnoncnnnnnnns 6 2 OVE IOW Aure MARE 7 2 1 Dis plain datar 7 22 Display POoweron IMIG re eee 7 3 ETE SY EE A A EAEk 8 3 1 Menu rel O eee Ace 8 3 2 jDISPlAYMOUSS iii RA aii 10 3 2 1 Display Idle mode iie eieiaeo eiia eiai duk bd denna 10 3 2 2 Display BUSY MOd6 mars Sean 10 3 2 3 Display Error mode Lun ansvar id 10 TE 11 34 Lightisensor amp Da via o bi eat 11 4 Data amp control signals f
14. as If the microphone sensitivity is too high it might suffer from signal saturation or cause the input to suffer for saturation Location Ambient noise Operation level Bridge Offices Mess etc Low Hands free handset Voice control 10dB 25dB ECR Galley SCC Medium Hands free handset possibly assisted by external speaker Voice control 30dB 40dB ER SGR Generator Handset headset Thruster Hydraulics Very high Headset and in some cases handset 7 2 Voice control considerations To get optimum performance from the automatic voice control when using hands free the level of speech must be approx 10dB above background noise level If not voice control cannot detect voice from noise and thus control direction of speech This is very important when using headset or hands free in every noisy areas especially when using headset in extreme noisy areas in one end and hands free at the other end even more if combined with VOX for the headset To be able to go above the background noise level may require a high sound pressure that will saturate the microphone input if the microphone is too sensitive or if the gain is too high SeaCom Rev 2 00 SC4x0 Technical manual Page 18 of 34 8 Electrical layout Below a schematic of the electrical layout is shown Power Amp DC DC 5V Pk 24V D 2 PTT OV Speakers in Mi Hook SW a Mic PI
15. ause a considerable current consumption from the power supply if external speaker is connected 9 8 PA volume There are two level of PA volume One for normal PA call and one for PA call having volume override Using volume override means full volume and will bypass the PA volume setting from menu level 1 SeaCom Rev 2 00 SC4x0 Technical manual Page 22 of 34 Full volume is not always practical or applicable Therefore an absolute max volume for PA call can be set from the hidden menu 9 9 External speaker The external speaker can be programmed to be on by default It has an 1 5sec lead time delay meaning the first ring will only be in the local speaker If programmed to be on hands free will use the external speaker by default It can always be turned on or off manually 9 10 Adjusting external dimmer input When the unit is tested amp shipped it is ensured that full range can be obtained However an input voltage of 28 may not give 100 brightness and 5 volt will not give 0 The input needs to be calibrated to the actual zero and full scale output from the central dimmer To calibrate the input set the dimmer to zero or approx 5 volt Go to the hidden menu and read out the dimmer input value Note it for later use Set the dimmer to max output and read out the dimmer input value from the hidden menu Use the following formula to calculate offset and gain factor Aottset Dimmer input value in at 5 volt Acain 100
16. cess to the connectors All screws are accessed from the rear side B Ss S S iS O S O 9 LS Handset mic 24V Handset mic ov Handset SP Hook Sw signal Handset SP O Hook Sw 0V PTT GND Line Tip PTT Signal Line Ring Headset mic Dimmer Headset mic Dimmer Headset SP PE Headset SP Relay NC Ext SP Relay COM Ext SP Relay NO OL 222200000e Connectors are two block of 12 terminals and may be orientated with the cables 180 or 90 angled However 180 deg is the only option for the 420 type NOTE If connected as 180deg and relocated as 90deg all connections are mirrored posing a great risk of damaging the unit Important DO NOT remove dispose the ventilation gland Applicable for the SC420 only Only connect power to power amp relay switch inputs never apply power on any other terminals Always used a fused power supply for relay amp power connections and always connect PE DO NOT CONNECT SUPPLY OV TO ANY OTHER TERMINALS BUT RELAY USE POTENTIALFREE SWITCHES FOR HOOK amp PTT INPUTS SeaCom Rev 2 00 SC4x0 Technical manual Page 31 of 34 13 1 1 Power Power supply voltage must be 18 32Vdc capable of delivering at least 1 5 A It is internal fused by a 1 5A thermal fuse allowing peak current of more than 2A Should be short circuit protected by a fuse not larger than 2A Power input is protected against wrong polarization and over voltage I
17. d be shielded cables If terminated at the telephone termination must be made to the PE terminal 13 2 General environmental data Operating voltage Ambient temperature operation Ambient temperature storage Humidity vibration EMC ESD Compass safe distance Surface Environmental 13 3 1 0 amp signaling interface Supply Dimmer input Line voltage idle Line voltage ringing Line impedance Line signaling Ringing relay Local speaker output Headset speaker output External speaker output Local amp handset mic input Local microphone Headset mic Loudhailer mic PTT input Hook switch input Handset speaker Headset speaker SeaCom 24Vdc 1 5Adc 25 70 C 30 70 C IEC60945 gt 7 meters Water and oil resistant RoHS compliant 24Vdc 30 25 1 5Adc 0 30 5 24V 0 100 lt 20mA 20 50Vdc 40 90Vrms 20 50Hz Pure AC and AC mixed on DC 6000hm DTMF amp LD DTMF 10dBm 240mV 600o0hm 24 50Vdc 1 0 5A 1W 8ohm gt 85dB 1m 1W 8ohm 12W 8o0hm 115dB 1m if speaker 96dB W Speaker must be gt 80hm Electret type Normal operating signal range 70 110dB Electret amp dynamic type max signal 135dB Y 2mV Pa if dynamic type Dynamic type Potential free switch Potential free switch gt 320hm gt 80hm 1W Rev 2 00 SC4x0 Technical manual Page 33 of 34 13 4 Cutout 8 mounting NOTE compass safe distance is gt 7 me
18. e only Line voltage Numerical value from 0 to 63 volt Line polarity Tip gt Ring 1 If Ring gt Tip 2 NOTE Voltage must be out of 5V dead band Line state Idle busy ring NC 16 kHz signal Vol Indicating volume override PA call PA Indicating normal PA call Term Termination of ongoing sequence or cancel call HOFF Hook Off command used for command group call with direct in HON Hook On command used for init of device or cancel command call DIRECT Direct in call SeaCom Rev 2 00 SC4x0 Technical manual Page 15 of 34 5 3 Monitor input This item is mainly used for testing hardware It will show input values from PTT HOOK amp sensors Temperature 20 90 Displays actual board temperature Dimmer input 0 100 Displays actual external dimmer input level Light sensor 0 100 Displays actual light sensor level If signal from headset PTT or handset hook switch is detected display will show coherent text 5 4 Set parameter xx This item is used to adjust all hidden parameters not accessible from the main menu system Each parameter is given as id number The number can be found in the section Parameter list for hidden menu First key the number of the parameter to change When pressing M display will show current value for that parameter If the value is not to be changed just press M to return If a change is requested key in a new value using 0 9 If range is 0 9
19. eaCom Rev 2 00 SC4x0 Technical manual Page 5 of 34 13 Technical specifications coocccicccicncicccnccnnnccnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennness 30 131 GOMMECIO Sisa Gases 30 TZIA POW A SO eae eee i Rone Oe DE on ee ee ee ees 31 13 1 2 PEiprotective Earth ernaia E sete A Dee 31 O IN 31 5 A VDIMMER Hardan eee 31 13 1 5 Handset amp cradle ii a 31 1910 A A AAE T 31 13 1 7 External speaker a taria 31 E y A AS 32 13 1 9 Cable amp terminal iii tamt 32 13 2 General environmental data rrarnrrnnerrnnnnrnnnnrrnnnnrnnnernnnnrnnnnrrnnenrnnnernnnevnnnevvnnnnvnnnevnnr 32 13 3 WO Signalng IMME ACE amanda ted als 32 13 4 Cutolt amp mountinguauusavserakea A aai 33 SeaCom Rev 2 00 SC4x0 Technical manual Page 6 of 34 1 INTRODUCTION 1 1 Purpose and Scope This document is intended to give detailed information on the SC4x0 P4x0 telephone during installation Information given here is intended for skilled service engineers and if not use correct could lead to possibly malfunction This manual cover installation and setting up the telephone e i adjusting parameters etc 1 2 Required approval information P410 is an alias for SC410 P420 is an alias for SC420 where SC is short for SeaCom and P is Phone Alphatron label e The SC410 is intended for desk mounting in protected areas e The SC420 is intended for bulkhead mounting in protected areas e C410 amp SC420 are designed according to I
20. et up with remote PTT for loudhailer This example shows how to connect loudhailer in remote location T2A PE Her aa ov n E SC410 420 TIA Relay COM Handset Mic To bell or alarm relay coil NOTE If connected to DC Relay NO or NC coil use protection diode Line KK Headset PTT PE Ext Speake PE Page 19 of 34 Cradle switch must be potential Switch must close when handset is off hook Cradle Switch is connected to Hook Sw on telephone If cradle have a double switch use the other for connecting speaker NOTE If shield is connected at APBX do NOT connect to PE at telephone end Always only connect one end due to possibly high ground current when used off shore 8 4 Ground amp shield connections Cradle switch must be potential Switch must close when handset is off hook Cradle Switch is connected to Hook Sw on telephone If cradle have a double switch use the other for connecting speaker Headset PTT function needs to be assigned to loudhailer PTT from the menu system NOTE When using headset PTT for remote loudhailer due to noise picked up by the cable adding a slave relay located next to the telephone may prove beneficial It is very important to connect or terminate all shields correct Normally shields should be terminated to ground or ship hull in both ends and not carry any signal forwa
21. f Headset type Electret condenser or dynamic Refers to the type of microphone used Factory setting dynamic with the headset Headset VOX On or Off See user manual Gain local Mic 0 100 in 16 steps Factory setting 64 Each step represents 2 7dB increase Step 9 to step 10 will change HW gain Gain handset Mic 0 100 in 16 steps Factory setting 36 Each step represents 2 7dB increase Step 9 to step 10 will change HW gain Gain headset Mic 0 100 in 16 steps Factory setting 43 Each step represents 2 7dB increase Step 9 to step 10 will change HW gain Gain external Mic 0 100 in 16 steps Factory setting 43 Each step represents 2 7dB increase Step 9 to step 10 will change HW gain Factory setting 0 Relay mode Ring PA Ring PA Invert See user manual Inv ring Inv PA Inv Ring PA Call Relay hold off 0 10 sec Sets the time to hold relay between ring signals Backlight control Manual Auto external Factory setting Auto Contrast 0 100 in 20 steps Factory setting 60 Display will automatic compensate for change in temperature SeaCom Rev 2 00 SC4x0 Technical manual Page 25 of 34 10 4 Parameter list for hidden menu XX Parameter Range Notes number 00 Relay hold off 0 10 sec Sets the time to hold relay between ring Factory setting 0 signals 01 Auto ans
22. f connected wrong or voltage is gt 33V internal protection will short circuit to interrupt thermal fuse or disconnect external fuse Disconnect power to reset the internal fuse 13 1 2 PE protective Earth Should always be connected to earth ships hull The frame of the 410 type is connected to PE 13 1 3 Line Line tip amp Line ring are the two wires of a standard 2 wire analogue telephone line Idle voltage should be approx 48V Ringing voltage approx 90Vac RMS and busy line voltage approx 10Vdc 13 1 4 Dimmer Input for external common dimmer Input is galvanic separated and span is 5 28 volt Input will source approx 15 25mA from transmitter NOTE Extern dimmer control is optionally 13 1 5 Handset amp cradle Handset is connected using 4 wires or 6 wires 2 wires for microphone 2 wires for speaker and 2 wires for the hook switch The cradle switch for hook signaling must be a potential free switch capable of switching 30Vdc and must be in off state when handset is positioned in the cradle Depending on the type of hardware switch may be located either in the handset or in the cradle The speaker output is short circuit protected by a 47ohm serial resistor The max output current is approx 20mA equivalent to 3mW in 8 ohm or 13mW in 32ohm NOTE handset speaker should be 32 ohm or more amp microphone must be condenser electret type 13 1 6 Relay output This output is a potential free switch for remote indication of p
23. ization of the supply voltage In the supply line a protective diode is connected across in non conducting direct when connected right When connected in reverse this diode will short through a PTC fuse and interrupt the supply current Supply must be disconnected for a few seconds before the fuse resets 6 2 Excessive voltage The device is protected against high voltage from e g battery charger If the supply voltage exceeds approx 33 5 volt a crow bar circuit will short the supply through a PTC fuse This will either blow the external fuse or lower the internal supply to below 0 5 volt until supply is disconnected Supply must be disconnected for a few seconds before the fuse resets 6 3 Excessive temperature If the board temperature exceeds 70 C a warning is given to the internal alarm log and error condition is indicated by the Call indicator If the temperature exceeds 85 C an alarm is given backlight supply is disconnected if the unit is active volume is lowered to step 7 if set higher for reducing the power dissipation When temperature of the power amplifier reaches approx 140 C it will shut down due to thermal protection 6 4 Program deadlock protection The processors internal watchdog that is enabled at a rate of 106ms protects the device software It is only serviced by the main loop and a few time consuming inline functions In case software accidental or by electrical noise injection enters a deadlock a timeout will
24. l State code State 0 Reset debugging Boot debugging Normal Programming Error a A O N Manual debugging SeaCom Rev 2 00 SC4x0 Technical manual Page 14 of 34 5 1 5 E bank This item shows current NOV memory error info If a check sum error is detected in an eeprom memory bank error state is entered and the ID of the last failed bank will be shown here 5 1 6 Error code If an error is detected a new entry is made to the error log and last entry is shown here If the device is giving error indication the cause should be identified here Each system error has a unique binary indicator If more errors are present error code will represent the sum of all errors The value 0 is no errors E g if error 0x0001 and error 0x0002 is both active error code will show 0003 Error code Cause Function 0001 RAM error Set error state 0002 Check sum error 0004 NOV memory error Set error state 0008 Temperature alarm set if board temp gt 80 C 0010 Temperature warning Switch off all backlight set if board temp gt Decrease speaker vol 70 C to step 7 44 0020 No serial number Set error state 0040 Watch dog error Set error state 0080 IRQ time too long 5 2 Monitor line This item will monitor all line events This menu will not exit idle when hook off or timeout It is possible to press Speaker to go off hook or to call the phone Following items will be monitored Display will update on chang
25. lay before a valid change of state is detected 4 2 16 kHz control signals The line interface fund in drawing SCH061212LAF01 xxx page 2 of 3 shows the line interface 16kHz signals are filtered through the high pass filter and passed into the detector The detector input is compare to a DC level set by the processor From the hidden menu system it is possible to adjust trigger level for the detector Only rare cases where noise is disturbing the detector adjustment of the 16 kHz threshold level is needed or if the detector needs to be disabled Setting the level to 0 or 100 will disable the detector 4 3 FSK CLIP data If the exchange is programmed to issue FSK data caller s ID can be displayed Data is sent in a single burst of 575 ms from the exchange 500ms after first ring signal FSK data is decoded by U19 and sent as 1200 baud data 8N1 to the processor The processor s UART 1 picks up any FSK data Up to 20 digits and 50 chars can be sent as caller s number amp name in a single message The telephone will however show the last 16 digits only of the number and the 16 first chars of the name The telephone needs no power on wake up ringing signal as it runs on constant power and never enters any power down mode This means data can be received without the need of an alert ringing or signal sequence NOTE Only month and day data is defined in the time data frame for CLIP data If year info is needed it must be keyed in manually fro
26. m the menu system The internal RTC use year info for leap year info Default year will be 00 This will have a potential impact on the date shift from 28 gt 29 of feb SeaCom Rev 2 00 SC4x0 Technical manual Page 13 of 34 5 Hidden menu This menu is hidden as all items in this menu are intended for service or setting up the unit Some settings in this menu can possibly cause the unit to malfunction e g setting audio gain to line to 0 The menu access is protected by a times key sequence The R button must be pressed 5 successive times at an interval of 0 5 1 sec If timing is not right the 5 time counter will reset 5 1 System info This sub menu item displays the following items e Device amp software family e Serial number e Production date e System state e E Bank e Error code 5 1 1 Device amp software family This item has partly been replaced by the power up menu but will show in plain text the basic type of device 5 1 2 Serial number This item is the device unique serial number If this number is missing error is indicated via the call indicator flashing and an entry is made to the internal error log 5 1 3 Production date This item shows the production date of the device It should be on the format YY MM 5 1 4 System state This item shows current device state If an unrecoverable error is detected device will enter error state and start flashing the Call indicator It should read 2 for norma
27. n indicates 5 volt present the red indicates processor reset if lit The green should be on and the red should be off Check power is connected range is correct and check polarization on the power terminals Check the small black box to see if it is warm Warm means power is flowing through in attempt to maintain internal 5 volt If cold and no green light no power is generated for internal electronics If so try to disconnect external speaker if connected If warm try to disconnect all connections except power recycle the power 12 2 Spontaneous reset This event should never occur but if it happens especially when ambient temperature is hot remove the jumper in J7 on the PCB back side or make sure power do not drop below 18 volt If this happens during conversation at high volume or when external speaker in on check speakers for low resistance or ground leaks 12 3 Unable to hang up in hands free mode If fitted with a handset or if hook switch input is shorted it is not possible to end current session conversation until handset is relocated in the cradle or input is open when conversation is carried out in hands free mode If no handset is connected remove any wires connected to hook switch input and recycle power If input is used for remote PTT check setup parameters from the menu system 12 4 Noisy or scratchy sound quality Make sure power and line connection is not mixed Make sure power is absolutely floating e i
28. nd if written to memory All info both address and data must be written in hex values 11 4 2 Eeprom data All vital data in the eeprom is protected by a check sum and is duplicated Data like call lists memory dial are only protected by a check sum Erase of eeprom will reset entire eeprom Recall factory settings will only preset all vital data but not call lists and memory dial To erase these data use bank erase to preserve all setup data To erase eeprom data the state command must be issued having prog as argument 11 4 3 Busy tone detector The detector will look for tones of 350 440 or 480 Hz having a cadence of 150ms ON 250ms OFF or 240ms ON 260ms OFF This will cover the SeaCom system most standard busy tones and the Ericsson systems SeaCom Rev 2 00 SC4x0 Technical manual Page 29 of 34 12 Simple faultfinding In this section examples of simple faultfinding are given to ease installation amp servicing on board In general there should be time update in the display and a green led inside next to display should be lit 12 1 No life sign When the telephone is connected to power display should be lit dependant on dimmer setting and display should and real time clock where the separator is flashing each sec Check if a green led is lit on the opposite side of J7 on the right side of the PCB when looking from the terminal side Close to the edge of the PCB a green amp red led is located The gree
29. nt will set operating state of software equal to argument Used to gain manual control of hardware during test will select audio input from specified microphone Used for hardware test will select audio to be connected to specified speaker Used for hardware test will select audio input from specified line input Used to test hardware will set specified relay on or off Used for hardware test will set specified PWM duty cycle Used for test of dimmer 16kHz hardware etc will cause software to enter dead lock amp test of MCU watch dog will write value of argument to specified memory address Used for software test will cause software to enter dead lock amp test of external watch dog will show most available commands 11 3 Commands use full for workshop testing When tracing hardware errors some commands like codec sine is very use full for tracing the signal path Using this command in conjunction with sspk sgts amp srly if testing external speaker total control and test of SeaCom Rev 2 00 SC4x0 Technical manual Page 28 of 34 hardware is possible without using a single instrument it only require a speaker to be connected A scope or volt meter in volt AC can be used for tracing the signal path on the pcb 11 3 1 Set Relay command The command srly will display an option for select of relay This option must be succeeded by the requested state of the relay First t
30. occur and reset the processor In parallel to that an optional external watchdog can be enabled by means of a jumper in J7 Ifa jumper is located in pos no 3 from left to right the watchdog is enabled If the jumper is omitted it is disabled The external watchdog is for future implementing of PA and other options requiring an independent monitor source and is have a service timeout of 1 6 sec 6 5 PCB coating The PCB is coated to protect it from the harsh environment at sea SeaCom Rev 2 00 SC4x0 Technical manual Page 17 of 34 7 Audio path amp voice control Below a schematic of the audio path is shown Handset Local Handset Headset ig Local yP control Ext speaker Headset All audio is passed through the codec for signal processing Volume control of the speakers and pre gain control of the microphones are all made via processor control There are no mechanical adjustable All microphone inputs are balanced inputs for maximum noise suppression 7 1 Acoustic considerations To select the right setup for the installation is important to optimum sound quality In general hands free works best in quiet areas but if an external speaker is added it could be functional in areas with moderate ambient noise If installed in areas with a very high level of ambient noise headset is the only right solution Care should be taken to select headset or handset capable when making installations in high noise are
31. only one digit can be entered To enter the new value press M If the new value is out of range data will be replaced by high or low boundary value Depending on the type of data Or can be entered using the F keys F3 will erase last entered digit 5 5 Recall factory This function will clear all user settings and restore them to factory values Use this function if there is any doubt re current settings to set all parameters From software 090928 all new parameters will automatically preset to factory values on first power up after software update When updating software it is always a god idea to note deviations from factory settings before recalling Especially if adapted for special use NOTE memory amp speed dial data will NOT be erased by this function 5 6 Erase eeprom This function will erase all settings all speed dial data all mem dial data and call logs and cause the unit to reload factory settings to all parameters on first power up 5 7 Reset This function will cause the device to restart as if power was recycled Use this function to read current software rev hardware rev or software id from the power up menu 5 8 Sys test This function will engage a small test sequence to test alarm relay and display Will revert to idle after 10 sec SeaCom Rev 2 00 SC4x0 Technical manual Page 16 of 34 6 Protective measures 6 1 Reverse voltage The device is protected against wrong polar
32. rd or return Due to possible high ground currents in case of earth leakage or lower shield resistance it recommended to terminate in one end only In general power and line should be terminated at the exchange and remaining wires at the telephone It is very important to connect PE to ground or ship s hull for protection and to avoided noise interference Connection between PE and ground should be as short as possible SeaCom Rev 2 00 SC4x0 Technical manual Page 20 of 34 9 Mounting 8 programming When setting up this unit first disassemble the box if it is a 420 type Detach the terminals J4 amp J6 by pulling them off Connect all wires to the terminals and check power and relay connections before attaching the terminals to the unit Be careful not to relocate J4 at J6 9 1 Power supply amp grounding considerations If powered from the exchange make sure a fuse protects the unit and power supply is strong enough to blow the fuse without shutting down the exchange If more units are connected make sure the power supply has enough dynamic power to handle peak currents if external speakers are connected The telephone will consume approx 250mA max if no external speaker is connected An 8ohm speaker will take additional peak currents up to at least 1 8 amp Both the 410 amp the 420 must have connected PE via a separate wire to a central earth grounding point 9 2 Programming the type of headset amp VOX
33. resent ringing signal or for indication of PA call e i it is used to signal a present call Should be short circuit protected by a fuse not larger than 2A See technical specification for max load of the relay switch If connected to an inductive DC load protection diodes should be connected as close to the load as possible to protect other equipment from receiving high voltage transients If connected to an inductive AC load protection capacitor should be connected as close to the load as possible to protect other equipment from receiving high voltage transients 13 1 7 External speaker This output is for connection of an external speaker or loudhailer Output power is approx 12watt Speaker must be 8 ohm or higher The power stage used has thermal protection and will automatically shutdown if overloaded SeaCom Rev 2 00 SC4x0 Technical manual 13 1 8 Headset Page 32 of 34 Handset is connected using 4 wires or 6 wires 2 wires for microphone 2 wires for speaker and 2 wires for the PTT The PTT switch must be a potential free switch capable of operating 5Vdc Output power is approx 1watt max for 8 ohm Use 8 ohm speakers or higher in series Microphone may be both dynamic or electret type Use a shielded cable and connect shield to PE or PTT gna PTT switch may be pulse or flip switch type located on the headset or separate box 13 1 9 Cable terminals All terminals are 2 5mm flat head crew terminals All cables shoul
34. rom the exChanQe coccooocococccccccccconononancnoncnnnnononnnnnnnnnnnnnnnnnnnnnnns 12 4 1 Line voltage amp ringing voltage detector ooomomsmorerminssscccccccn nn 12 42 19KHZ CONOS A GE eee 12 Ja A ean 12 5 A O A 13 5 1 System MMO EEE EE iaa 13 5 1 1 Device amp software family ceci adi 13 5 1 2 A hese Gal ees Noe eee eee Ge a A Me en foo fen ci oe 13 5 1 3 Production date sduuansdkas s rende te ba 13 5 1 4 SE EEE EE lada 13 5 1 5 bank astenia EE 14 5 1 6 Error COG cas AAA A AAA a eee 14 5 2 Monitor Oa ia iio 14 5 37 Monitor inp Ubeccsiscccicsecas cans reli 15 5 4 S t parameter XX sama Raced cordctetaneenn Ar ety eae 15 5 59 A O tas Ned 15 5 6 EFASCCODIOM i isietecve tas a aiii 15 Bil ROSOb nesen peke doves ieagnavadecea dekia Raide dagan 15 50 DYSTER eder 15 6 Protective measuresinsuusarnsuamaktn een 16 6 1 Reverse voltage Lo uensn anden rune i 16 6 2 EXCESSIVE voltage sanne Same 16 6 3 Excessive temperature nisinsin e aa a e d darana 16 6 4 Program deadlock proteccion ici a pde 16 05 POB COA reader aat deler h 16 7 Audio path 8 voice control rrnnnnnnnnnnnnnnnnnnn nn nn nn nn rre 17 7 1 Acoustic CONSIderatiONS occcccccncccnncnnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnness 17 SeaCom Rev 2 00 SC4x0 Technical manual Page 4 of 34 7 2 Voice control consideratiONS cociccciccciciconnnonennneninennnennnnnnnnnnnnnnnnnnnnnnnnnnnninnninnnnnss 17 8 Elec
35. rror has occurred 3 4 Light sensor amp backlight The light sensor in the front is used to control the backlight in the keyboard and display when backlight mode is set to automatic The raw data from the sensor can be read out via the hidden menu If two units are placed side by side and dimming is controlled externally dimmer input needs to be calibrated for the two units to have same intensity NOTE External dimmer is optional The display and the keyboard light are controlled by a common function and variation in power supply will a minimum impact on backlight intensity SeaCom Rev 2 00 SC4x0 Technical manual Page 12 of 34 4 Data 8 control signals from the exchange Signals amp data are sent from the exchange in different ways Control signals are issued as 16kHz burst where the duration and current state of operation determine how to interpret date CLIP signals Caller Line Information are issued using FSK Line voltage is used to indicate ringing busy or idle 4 1 Line voltage amp ringing voltage detector The line interface fund in drawing SCH061212LAF01 xxx page 2 of 3 shows the line interface Line voltage and polarity is measured by the processor via U2A and the voltage divider placed across the line Line Voltage gt 25 volt de Line is idle lt 18 volt de Line is busy lt 5 volt de No line If AC voltage gt 25Vac 50Hz is detected pure AC or AC on top of DC ringing is detected There is a 200ms de
36. rrrrsrrrrrrrrrrrrrrerrresrresrnnrrnnrrrnrrnnrrnnrsnnrrrnnrnnnnnnnn 24 10 4 Parameter list for hidden Menu oooocoocccconcconcnonononcnonononcnonnnnnnnnnnononnnonnnonnnnnnnnnnnnnnos 25 11 Serial monitor ii cade 27 Wels o iLO sekt E AE EE AETAT EEE 27 11 2 COMMANS AAA i RES 27 11 3 Commands use full for workshop testiNQ oooooocccccnccnnccnoooncccnnnnnonononnannnoncnnnnnnnnnnnnns 27 30 SetRelay command diia 28 11 3 2 To pass audio from microphone to speaker oooooccocccccccnccconccnnncconcnoncnoncnnnnons 28 11 4 Commands use full for development 8 testing ooooononcnnccccnnnnncccccnanncanncnnnncnnnnnnnns 28 11 4 1 Memory monitor amp manipulatiON oooooninccnnnccnnnnnnnnnoconcccnnnnnnnnnnnnnn cnn nnnnnnnnnnnnns 28 11 4 2 Espronceda 28 11 43 Busy tone detection de 28 12 SIMple TeaU TICINO asenna prin sia 29 12 1 No UG SOM Hud 29 PIE ET iinis aiora aniani nee ania a dani E EAEE EE he iape ia ia i iaaii 29 12 3 Unable to hang up in hands free mode mmm srevrrrrrrrvrrnrnnnnnvvvvervrrannnrnnnnenrnnnnrrvennnnnen 29 124 Noisy or scratchy sound quality oooccccnccnnonoccccncccnnnnnonanncnnnnnnnnnnnnnnn no nnnnnnnnnnnnnnn nos 29 12 5 No direct in no PA or no command Call o o o ccnnnnononcccncncnnancn nana nn nana n anar nn 29 12 06 Dialing problems rorarii iie A A AAA rute 29 12 7 Low or distorted sound from microphone ooooccocccncccnnccnnccnncnnnncnonnnonnnoncnonnnnnnnnnnnnnnnns 29 S
37. ters o pia za ee NENE pa P4t0drawing 1 eel Jowcozos1acuo1 o2 gt HEGE E E Ebo kee 1 oe SeaCom Rev 2 00 SC4x0 Technical manual Page 34 of 34 aga 8 08 JUUU UL JUUUSUL 0 a WN e a Aa IDWG070305CJ02 02 NO Ipweo70305CJ02 92 IDWG070305CJ02 02 2 H o ES SeaCom Rev 2 00
38. trical layouteren a seres deres 18 8 1 Example of a simple set up with headset ooocccccccccnccnnncnnncnnnnnnnnnnnnnnnnnnnnnnnnininenos 18 8 2 Example of a simple set up with handset ooocccnncnnninnncnnnnnnncnnnnnnnnnnnnnnnnnnnninnninnnnnns 19 8 3 Example of set up with remote PTT for loudhailer oooccccccccnncnnnccnnccnnncnnnnnnnnno 19 8 4 Ground 8 shield CONNECtIONS cccccccccccccccnncnnncnnnnnnnnnnnninnnnnonnnnnnnnnnnnnnnnnnnnnninnninoness 19 9 Mounting amp Prog MITIN cerrado cdt tettere 20 9 1 Power supply 8 grounding CONSIderatiONS oooocccccccccnnncccnccccnananannncnnnnnnnnnnnnnnnnnnnno 20 9 2 Programming the type of headset 8 VOX cece eeeeeeeeeeeeneeeeeeeeeeeeeeeeaaaees 20 9 3 Adjusting microphone ali ii neta Ba Aa ae A iie 20 9 4 Relayfunctbn ussurur naust ee aaa benet annie 21 O en eee 21 9 6 Hands free voice CONTTO cocccccnnccnnnnnccnnnnnenonennnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnineniss 21 9 7 Bell signal and Volume ti id arial 21 GiB PAVOlUMO cuan eee 21 9 9 External speakeren eaa a e a aE Sa 22 9 10 Adjusting external dimmer input ooconnnninnnnnccononnccnnnnncncncnnnnnnnnnnnnncccncr rra 22 9 11 Local external MicrOphON6 oococcccccnnnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnneneness 22 102 Parameter E di daa 23 101 Level parameters cicle 23 10 2 Level 2 parameters ui A Ai 23 10 3 Level 3 parameters rrrrrrrrrrrrrrrrrrrer
39. wer 0 50 O disabled Sets the number of ringing signals before Factory setting 0 auto answer 02 16 kHz threshold 0 100 Sets the detector trigger point amp should Factory setting 50 ONLY be changed if problems with remote control of device 03 Temp sensor offset 12 7 12 7 C Used to compensate for offset error Factory setting 0 04 Temp sensor gain 0 200 Used to compensate full range value 100 compensation Factory setting 100 equals x1 00 200 equals x2 00 05 Dimmer offset 0 100 Use to compensate for zero point failure Factory setting 0 06 Dimmer gain 0 200 Used to compensate full range value 100 Factory setting 100 equals x1 00 200 equals x2 00 07 Backlight ABS max 0 100 Used to limit backlight intensity Factory setting 100 Sets max endpoint of total span 08 Backlight ABS min 0 100 Used to prevent backlight from going total Factory setting 0 off Sets min endpoint of total span 09 Max PA volume 0 17 Each step equals 3dB Sets the volume used if PA call using Factory setting step 10 volume override is issued If set above step 11 gong sound may be distorted Normally used when priority PA or alarm call 10 DTMF to line gain 0 11 Each step equals 3dB Sets the DTMF volume to the line Factory setting step 10 11 Audio to line gain 0 16 Each step equals 3dB Sets the audio volume to the line Factory setting step 15 12 UART speed 0 Off 1 1200 baud 2 2400
40. y loud When speaking very loud the microphone generates accordingly higher signals that not need the same amount of gain For the hands free voice control to work as intended any distortion must be eliminated This is the reason why microphones gain need to be adapted especially in areas beyond normal office conditions Likewise if used in quiet areas or for remote listening SeaCom Rev 2 00 SC4x0 Technical manual Page 21 of 34 To aid the adjustment a bar graph of 11 chars is showing the actual signal level When distortion is detected a P will be shown at the end of the bar The gain should be lowered or raised until this P is not lit when speaking at a high nominal level under normal working conditions For best performance lower the gain by just one step when adjusted as described above Use A or Y to select level and press M for store and exit If used in quiet room for remote monitoring raise the gain until a satisfying level is achieved at the listener This may however cause duplex conversation to become difficult as the site telephone tends to be in transmitting mode always To overcome this problem either a compromise regarding the gain at the site end must be set or PTT mode or command call mode has to be used at the site end This adjustment has to be made to all microphones in use NOTE When adjusting the handset remember to hold the hook switch down to access the menu system
41. y with adjustable red backlight amp automatic temperature compensated contrast control Display is shown in idle mode Date amp time Status field Info field Function key text Display always revert to Idle mode after a general time out of 10 sec When timing out current process is canceled If timeout occurs during programming data is lost and old data is restored 2 2 Display Power on info When the phone is in power on state it will show information about hardware and what software it is running 4 sec after power on display will enter idle state unless no line is detected EEE o ped SeaCom Rev 2 00 SC4x0 Technical manual Page 8 of 34 3 Menu system All adjustments and setup changes are made through the menu system lt is only possible to enter the menu system if the phone is idle or if no line is connected If a call is received or if phone is off hook active all menu processes are aborted and display will show idle or busy status menu The menu system is divided in to two sections user section amp hidden section User section can be accessed directly from the keypad by pressing and holding down M Hidden section can be accessed by pressing R 5 times with an interval between 0 5 1 0 sec on If another key is pressed or time is not within the window operation is reset When the menu system is active and no keys are pressed all operations will be canceled after 10 sec
42. ype srly Enter To set hook relay on relay on type 1 on To set off type 1 off 11 3 2 To pass audio from microphone to speaker The command smic will prompt for the microphone to be used First use codec off to reset the audio processing hardware Write codec pass to activate the audio processing Audio is passed from microphone to line and from line to speaker as default Use the command mirror on to pass from microphone to speaker and use sspk to select the speaker to pass to Gain can be adjusted by sgts xx where xx in a number from 0 to 15 11 are nominal 100 FSD but when testing values in the range of 1 to 6 should be used to prevent feedback NOTE when testing the external speaker loudhailer input output loudhailer relay must be set in correct position to select speaker or mic 11 4 Commands use full for development amp testing These commands should only be used by system developers as they may potentially cause the software to malfunction and reset In general only commands changing the contents of the eeprom cannot be recovered from a reset Meaning at reboot will reset all data to initial values except data in eeprom if changed 11 4 1 Memory monitor amp manipulation These commands will display changes made to specified memory location or change specified location The command must be succeeded by a 32bit address identifier for monitoring and data as specified by the comma
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