ZETRON Model 25 User Manual Download

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Model 25 Programmable

Encoder

Product Manual

025-9567E

Summary of Contents for Model 25

Page 1: ...Model 25 Programmable Encoder Product Manual 025 9567E...

Page 2: ......

Page 3: ...written notice to Zetron within the warranty period of any defect If the defect is not the result of improper or excessive use or improper service maintenance or installation and if the Zetron Produc...

Page 4: ...not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful in...

Page 5: ...Call 11 Sending Live Calls 12 Generating Alerts 12 Displaying the Time 13 Accessing the Call Stack 13 MAKING INSTANT CALLS 13 Instant Call Key Numbering 14 REMOTE CONTROL OPERATION 16 Call Logging 17...

Page 6: ...Left Column Function 37 JUMPER AND SWITCH SETTINGS 37 Programming Enable Disable Switch 38 REAR PANEL CONNECTIONS 39 Transmitter and Console Control 40 Channel Busy Monitor 42 Audio Output Muting 43 T...

Page 7: ...rogramming a Custom Call 87 PROGRAMMING SECTION 4 INSTANT CALL BUTTON SETUP 89 PROGRAMMING SECTION 5 GENERAL AND SEND BUTTON SETUP 92 General Operation Branch 92 SEND Button Branch 94 PROGRAMMING SECT...

Page 8: ...air Frequencies and Timings 125 Quick Call One 2 2 Frequencies and Timings 125 Digitone Format 126 Golay Sequential Format 126 APPENDIX B UPGRADING FROM OLDER FIRMWARE REVISIONS 127 APPENDIX C INTERFA...

Page 9: ...uter port Another feature is the RS 232 serial computer port The port has several applications One application is the connection of a logging printer to log all activity of the encoder With the option...

Page 10: ...the modes the keypad may either be enabled or disabled depending on the position of the keypad jumper inside the enclosure At all times the status of the encoder is being displayed on the front panel...

Page 11: ...he digits 0 through 9 the letters A through D as well as the characters and 1 2 3 A 4 5 6 B 7 8 9 C 0 D Extended Keys The Model 25 has four extended keys RESET CLEAR ENTRY ENTER and ALERT The extended...

Page 12: ...Tone Alert 1 Slow Siren 2 Fast Siren 3 HI LO Siren 2 Press and hold the ALERT key for the duration of the desired alert Instant Call Buttons The Model 25 contains 29 Instant Call buttons for one butt...

Page 13: ...ks of mixed formats each block capacity is Two tone Full code plan capacity 1000 calls Quickcall 1 Full format capacity Five tone Full format capacity Plectron custom 196 calls total in encoder 2805 D...

Page 14: ...Factory set to 1 dB over range may be field altered to 6 dB per octave TX Controls Audio switch one DPDT relay P T T one DPDT relay Channel select 8 contacts common when TX configuration may be field...

Page 15: ...ll stacks Alerts 5 separate Alert tones fast siren slow siren beeps high low warble and tone ramp Re Page The last entry or keyboard stack is again executed if the next key after a call is a SEND key...

Page 16: ...Specifications 8 025 9567E...

Page 17: ...formation While in the idle state the encoder is executing a limited self test Faults found in the limited self test are indicated the same way as in the full self test The four channel busy indicator...

Page 18: ...ading digits are 1 through D The leading digit for accessing call stacks is 0 If the attempted leading digit is not accepted it is because the block represented by the leading digit has not been assig...

Page 19: ...digits are displayed while the CLEAR ENTRY key is pressed then the last key sequence is erased and the display will clear If the display is clear but the keyboard stack contains key sequences then pr...

Page 20: ...en ALERT pressed Fast siren 3 pressed then ALERT pressed Hi Lo warble The alert tones will be sent as long as the ALERT key is held down While the alert is being sent the PTT and audio relays close bu...

Page 21: ...6 call stacks are not numbered sequentially Details on Instant Call key numbering may be found in the next subsection on Instant Call operation The valid call stack number ranges are 000 004 010 014 0...

Page 22: ...re sent their numbers also are displayed If during transmission the encoder begins to beep repeatedly then the channel needed by the call shown in the display is busy To force the transmission press t...

Page 23: ...full sized panels are numbered from 0 to 9 Columns on half sized panels are numbered from 0 to 4 The left most column is always column 0 The lower right hand key 0054 or 0p59 of each panel is reserve...

Page 24: ...nd no parity bit Normally the most significant bit of the 8 bits is zero Several other communications parameters are programmable The programmable remote control parameters are shown in Table 3 Table...

Page 25: ...trol M 0D special send character T 54 print date and time V 56 print software version number S 53 print channel busy status P 50 main menu Call Logging The status of the encoder is continuously output...

Page 26: ...r or custom call number This is very similar to sending using an Instant Call button The other send characters will send calls using the control relays programmed against their SEND keys When the enco...

Page 27: ...our SETTING THE CLOCK When power is first applied to an encoder equipped with the 24 hour time clock option the encoder will automatically enter the clock set mode When the clock set mode is entered t...

Page 28: ...Inputs Prompt Description Required Reply nn _ _ Enter month 01 to 12 d _ _ Enter day 01 to 31 Y _ _ Enter last two digits of the year 00 to 99 H _ _ Enter hour 24 hr format 00 to 23 nn _ _ Enter minu...

Page 29: ...nt by pressing a SEND key During a call sequence while sending a call stack The number displayed is invalid This could only happen through a mistake in programming the call stack Periodic beeping Duri...

Page 30: ...l stack may be sent on a different channel This allows a single key to dispatch all personnel needed for a particular event even though they may be listening to different channels The channel s used b...

Page 31: ...9002 3 1 1 and 3 9003 5 4 4 This table shows how the busy input is found for call number 9001 Note that relay 2 matches a relay programmed for SEND 2 Relay 6 matches a relay programmed for SEND 3 Thi...

Page 32: ...D keys are different from sequences generated by Instant Call keys Note the use of the words display and print In these summaries display refers to displaying on the encoder status display print refer...

Page 33: ...ck Yes Print I C STACK 2 Display Send Print SEND 0 Print time if time clock installed 3 Is call stack empty No Get next call from call stack Display call number Is call valid No Print call number Prin...

Page 34: ...y Open control relays Momentary Select 1 Is PTT still closed and are the last used control relays same as the desired control relays Yes Skip remaining steps here 2 Open PTT relay Open control relays...

Page 35: ...Yes Skip remaining steps here 4 Close programmed control relays Wait 150 milliseconds Close PTT relay if verify mode off Wait the programmed key up delay Close the audio relay Sample Channel Busy 1 I...

Page 36: ...Operation 28 025 9567E RELAY TIMING DIAGRAM...

Page 37: ...any communications console or system requires that proper grounding techniques be followed Failure to provide the individual units with the proper ground reference could result in one or more of the...

Page 38: ...lation 30 025 9567E Figure 4 Proper Grounding for the Model 25 MODEL 25 GROUND 12VDC 1 2 3 4 P4 024 0104A YELLOW BROWN GREEN RED ORANGE WIRE TO CONSOLE GROUND POWER SUPPLY Figure 5 Model 25 Power Supp...

Page 39: ...umper settings and programming configuration worked out Procedure 1 Unpack the Model 25 and verify that it is in good condition 2 Set all the jumpers and switches as necessary for proper operation in...

Page 40: ...k from ever closing In addition each individual encoding tone will pause for verification at the audio output until a keyboard key is pressed The tone sequences will progress to the next tone only whe...

Page 41: ...number 60 After keying the two digit number the encoder will return to the normal idle state The serial port should not be disabled from a PC since remote control of the encoder will be lost when the...

Page 42: ...enabled or disabled by the placement of the jumper JP2 on the encoder board 702 0312 If use of the keypad is necessary then the jumper must be in the enabled or B position If you wish input from the k...

Page 43: ...Scroll enabled will cause the encoder to add a considerable delay to its calling sequence and thus add to the time that the encoder is on the air When scroll is disabled only the last four digits of...

Page 44: ...he strain relief using two of the four holes in the side panel Be sure that the screws holding the strain relief do not interfere with the optional time clock board when the back panel is closed To mo...

Page 45: ...2 and key 0x30 selects panel address p 3 One of the LEDs on these four keys will illuminate to show the current panel address In this special mode of operation the instant call key numbering varies a...

Page 46: ...puter port on back panel Instant call CLEAR key function CLEAR key clears all LEDs JP3 Instant Call Driver board IN CLEAR key clears all LEDs OUT CLEAR key clears selected LEDs Instant call left colum...

Page 47: ...ch normally closed 9 AUDIO COM A audio switch common A 10 AUDIO COM B audio switch common B 11 AUDIO N O B audio switch normally open 12 AUDIO N C B audio switch normally closed Table 9 P2 Connector P...

Page 48: ...The Model 25 is designed to directly control from one to eight channels or transmitters singly or simultaneously The encoder achieves transmitter or console control through its eight control relays i...

Page 49: ...the control relays must not be wired directly to the select keys Occasionally it may be necessary to transmit over more than one channel at a time If this is required of a system attached to a console...

Page 50: ...is busy and should not illuminate when the monitored state is not busy Each channel busy input may be used to inhibit a transmission initiated using its associated SEND key There is also a way to inhi...

Page 51: ...dBm depending on the presence or absence of a resistor on the inside of the encoder Please see Audio Level Adjustment Range on page 35 for details on selecting the range The audio emphasis is shipped...

Page 52: ...le is strongly recommended for the interconnection between panels since the electrical signals may radiate some radio interference The distance of cable between panels should be no greater than 30 met...

Page 53: ...st be provided to indicate the desired mode of operation either remote control mode or instant call mode With a space level on the RMT CTL signal the encoder is in the remote control mode and the Inst...

Page 54: ...CTS clear to send also known as printer busy 9 RMT CTL remote control space RMT CTL An example of connection to a PC or video terminal is shown in Table 15 Since a terminal is to be used for remote c...

Page 55: ...of the CLEAR key lower right hand key should be shown on its label as SELECTIVE CLEAR or ALL CLEAR The CLEAR key label too should have a distinctive color The labels are installed on the panel by lift...

Page 56: ...enabled and disabled via jumper JP4 on the clock board 702 9028 In the A position the battery is enabled In the B position the battery is disconnected If the battery should ever become discharged it s...

Page 57: ...eter memory will need to be partially cleared and reprogrammed The block format remote control and send parameters must be cleared and reprogrammed or the encoder will not operate properly The clearin...

Page 58: ...Encoder Installation 50 025 9567E M25 ENCODER BOARD 702 0312 U18 U4 U5 U7 U6 Figure 8 Model 25 Digital Board Component Locations...

Page 59: ...anel see Figure 9 In position A the address is panel 1 in position B the address is 2 and in position C the address is 3 Jumper JP3 configures the CLEAR key function When JP3 is installed a press of t...

Page 60: ...NOT CONNECT 10 LOOP OUTPUT 11 CHASSIS 12 GROUND JP1 JP3 A PANEL 1 B PANEL 2 C PANEL 3 IN CLEAR KEY CLEARS ALL LEDs OUT CLEAR KEY CLEARS SELECTIVE LEDs Slot is centered in the unit rear panel Figure 9...

Page 61: ...ction of the auxiliary panel AUXILIARY PANEL 2 Loop In 4 Ground 3 Chassis Loop Out 10 Ground 12 Chassis 11 Loop Out Ground Chassis Loop In Ground Chassis PRIOR PANEL NEXT PANEL Shield Shield Power Sou...

Page 62: ...Auxiliary Panel Installation 54 025 9567E...

Page 63: ...is taking place By exercising the displays the encoder allows the operator to verify the LEDs If a test reveals a fault in the encoder or Instant Call panel then the encoder will halt the test and beg...

Page 64: ...terrupts bad Encoder Bd U19 U8 U1 U2 P5 Err6 Digital operational memory bad Encoder Bd U4 U1 U3 U18 U28 Err7 Front Panel Relay driver I O bad Front Panel Bd components cable Encoder Bd U8 J2 U16 U120...

Page 65: ...est is continually being executed Faults found in the idle state test are indicated in the same way as the power on self test A more complete continuous self test like that of the power on test may be...

Page 66: ...one frequency and control relay closed The order of the table is the order in which the tones and relays will progress upon each momentary key closure Table 19 Relationship of Display Codes Tone Frequ...

Page 67: ...des is identified and will be one of the following Encoder Bd Clock Bd Front Panel Bd Supply Bd Driver Bd or Switch Bd Instant Call panel switch board The ENCODER INSTALLATION section contains disasse...

Page 68: ...tly does not retain its programming during power interruptions Severe power spikes on incoming power during power transition Encoder Bd write protection circuit bad U1 U3 U18 U27 U28 The Enable Disabl...

Page 69: ...9 C50 Y1 U19 U30 U21 U26 U29 U28 U27 P4 J4 A device attached to the Computer Port connector is driving the RX data signal Characters received on the Computer Port cause the encoder to beep or behave u...

Page 70: ...name of the component location is identified and will be one of the following Driver Bd or Switch Bd Instant Call panel switch board Remember that the encoder enclosure contains a Driver and Switch b...

Page 71: ...omponent bad Panel will not detect clear mode or address jumpers JP1 or JP3 correctly Power was not removed when jumpers where changed Driver Bd circuit bad JP1 JP3 RP1 CR1 CR4 CR3 U4 Clear mode incor...

Page 72: ...Troubleshooting 64 025 9567E...

Page 73: ...of SEND buttons and Channel Busy inputs 6 Remote Control Setup Baud rate and serial port settings Each of the sections performs a different function in the Model 25 To make changes to the settings in...

Page 74: ...s 3 Print Selected Settings Question 2 Question 3 Question 4 Load Changes to Memory Return to First Question Press RESET to return to Idle state If RESET is pressed prior to completing the question lo...

Page 75: ...guring from a CRT or computer a P must be entered to display the main menu followed by the section character 1 PRESS and HOLD the RESET key 2 While holding the RESET key PRESS and HOLD the key for the...

Page 76: ...l begin to BEEP 5 Now press and hold the C key for 1 second Note The C key must be pressed within 5 seconds of the CLr display otherwise the Model 25 will return to the IDLE STATE The Model 25 is now...

Page 77: ...estion Question bo The display will prompt for this question by displaying The valid choices are 1 Change Settings Entering a 1 will instruct the Model 25 to continue on to Question b 2 Print All Sett...

Page 78: ...rough 9 or A B C or D The leading digit used for each format does not matter but each character may only be used once however the same paging format may be assigned to multiple leading digits This is...

Page 79: ...have been entered the Model 25 will either load the information to its memory and return to the first question in this section Question bo completing the question loop or prompt for additional informa...

Page 80: ...ht control relays Table 22 Assigned Numeric Values for Control Relays Relay Assigned Value 1 001 2 002 3 004 4 008 5 016 6 032 7 064 8 128 To activate multiple relays add the values of all the relays...

Page 81: ...unit will now display the prompt for Question 3 The Two Tone format requires that timing for the duration of the first tone the gap and the second tone is provided The expected entry for this questio...

Page 82: ...he diagonal tone first tone or second tone must be set If the group call option was selected the answer to this question will have no effect however something must be entered in order to complete the...

Page 83: ...you to select one of the standard Quick Call I tone groups A B or Z to be used for this leading digit If more than one tone group is required then more than one leading digit must be used one for each...

Page 84: ...his section to memory to be used until new changes are made During the time that the Model 25 is loading this information to memory the display will appear as shown here CAUTION Do not remove power or...

Page 85: ...r dual address operation The encoder is looking for a single digit response 0 to 1 for this question The valid responses are 0 Single Address operation 1 Dual Address operation Saving the Changes Once...

Page 86: ...digits assigned to the instant call key when it is pressed and that is it When set to Live the encoder sends the preset DTMF digits assigned then as long as the instant call button is held additional...

Page 87: ...mediately begin to load all changes made in this section to memory to be used until new changes are made During the time that the Model 25 is loading this information to memory the display will appear...

Page 88: ...its assigned only the leading digit selecting the 2805 1500 format was assigned to it then no digits will be sent other than the digits entered from the keypad Question 3 Tone Selection The encoder ex...

Page 89: ...n it to an Instant Call button the same as any paging format call or it may be manually entered from the keypad One other feature provided by the alert tone format is the ability to create a delay wit...

Page 90: ...encoder expects a 3 digit response to this question 000 to 999 This entry sets the tone duration used to generate the beep alert tones It has no affect on any of the other alert tones but some entry...

Page 91: ...the Model 25 will immediately begin to load all changes made in this section to memory to be used until new changes are made During the time that the Model 25 is loading this information to memory th...

Page 92: ...e reception of the page This entry sets the number of repetitions for Digitone pages made under this leading digit A typical number for this parameter is four repetitions Saving the Changes Once the s...

Page 93: ...ddress entered in order to shorten the entry made by the operator For example a system uses the following entry format for manually entering a Golay pager code b xxxxxx f where b leading digit for pag...

Page 94: ...be entered and once configured may be used as many times as required While configuring custom calls the Model 25 will prompt you to assign a 3 digit number to each call This number allows you to iden...

Page 95: ...RELEASE the RESET key Now RELEASE the 0 key This will put you into the Custom Call Setup section and the display will show the prompt for initial question To change the settings for existing custom ca...

Page 96: ...int is required for the entry Question 4 At the following prompt enter the duration for the gap between tones The encoder requires a 3 digit response 000 to 999 The range is from zero to 9 99 seconds...

Page 97: ...s loading this information to memory the display will appear as shown here CAUTION Do not remove power or press the RESET button while the Model 25 is loading the memory otherwise incorrect informatio...

Page 98: ...ge or pages The instant call question loop must be completed for each instant call button programmed into the Model 25 This step is referred to as Question C Once the instant call button has been pres...

Page 99: ...tion Question Co_ on page 90 You may program another Instant Call by starting a step 2 or press RESET to exit the programming mode back to the idle state At the dash prompt enter a Call Code Press the...

Page 100: ...ettings for general operation or Send buttons enter a 1 3 At the following prompt enter a single digit 0 to 4 to select what it is you are going to configure A 0 selects General Operation The digits 1...

Page 101: ...or this parameter is 1 second enter 10 This sets the delay time between the Model 25 keying PTT and the generation of the first paging tone Question 3 Review Before Send At the Question 3 prompt enter...

Page 102: ...e the Model 25 is loading the memory otherwise incorrect information could be loaded requiring reprogramming Once the Model 25 completes the loading procedure it will return to the first question in t...

Page 103: ...SY when pulled LOW 1 Input is BUSY when pulled HIGH The LED associated with each Send button will be lit whenever the busy input is in the busy condition For more information on the busy input circuit...

Page 104: ...system for CAD operation or connection to an IBM compatible computer for remote programming of the Model 25 Entering Remote Control Setup 1 To enter the REMOTE CONTROL SETUP Section from the keypad a...

Page 105: ...Model 25 should send a Bell character Control G out the serial port whenever it sounds its own annunciator The default setting is 0 The choices are 0 No BELL character sent 1 Send BELL character when...

Page 106: ...been entered the Model 25 will immediately begin to load all changes made in this section to memory to be used until new changes are made During the time that the Model 25 is loading this information...

Page 107: ...o The baud rate bit rate of the serial data may be one of three programmable rates One second or more of a space or break level on the RX DATA pin will cause the encoder to reset The CTS input signal...

Page 108: ...L characters ignore CTS Details of these parameters are available in the subsection PROGRAMMING SECTION 6 REMOTE CONTROL SETUP on page 96 Baud rate 4800 600 or 150 Number of ASCII NUL characters for e...

Page 109: ...ided free along with every Model 25 While most of the programming capabilities remain available when using generic terminal emulation software there are a few capabilities that are only available when...

Page 110: ...n Once started the program defaults to the computer s COM1 port and attempts to communicate with the Model 25 at 4800 baud If the Model 25 does not respond the program will try again at 600 baud and a...

Page 111: ...These switches instruct the program to use the port COM2 at a baud rate of 4800 CONFIGURATION PROGRAM OPERATION Once the computer has established communications with the Model 25 the current baud rat...

Page 112: ...is set to the ON position all information that appears on the screen will also be sent to the printer this only applies to a printer physically connected to the parallel printer port of the PC This f...

Page 113: ...will now ask for the text file name to be entered Any name may be used but it must consist of 2 to 8 characters and you must not use those characters DOS considers invalid for file names space and Ple...

Page 114: ...pload Note The upload and download information is stored on the disk as data files and is not readable as text Additional records as to how the Model 25 was configured should be kept to insure that ch...

Page 115: ...Model 25 F6 Function Key Stack Entry Programming calls into the Model 25 Instant Call stack buttons requires that you first enter the Instant Call button programming section You will then be asked to...

Page 116: ...figuration information of the current section to the Configuration Program Edit Screen If the F1 or F2 function is enabled then this information will also be sent to the printer connected to the paral...

Page 117: ...LEAR PRESS C IF SURE The following menu will open to allow you to select a specific part of memory to clear 1 CLEAR SECTIONS 2 5 AND 6 2 CLEAR ALL INSTANT CALL BUTTONS 3 CLEAR ALL CUSTOM CALLS 4 CLEAR...

Page 118: ...next prompt displayed prompts you specify which channel select relays are to be activated when a page is made with this leading digit CHANNEL SELECT RELAYS 000 255 PB1 1 2 008 The encoder expects a 3...

Page 119: ...identify the page when manually sending it or when assigning it to an instant call button CALL NUMBER ASSIGNMENT 000 195 P01 101 The next prompt displayed prompts you specify which channel select rel...

Page 120: ...The range is from zero to 9 99 seconds in 0 01 second increments No decimal point is required for the entry SECOND TONE DURATION X 10 MS P01 101 100 At the following prompt select an alert tone to fol...

Page 121: ...iew before send option is enabled then the lower left key 0p50 is reserved as the SEND QUEUE key Once you have entered the 4 digit number identifying the instant call button to be programmed the Model...

Page 122: ...the front panel of Model 25s that have displays and keypads Entering an A at the top menu brings up the opening prompt for the general and SEND button setup A SEND BUTTON SETUP 1 CHANGE SETTINGS 2 PRI...

Page 123: ...prompt enter a single digit response 0 or 1 enable or disable the Review Before Send function The default setting is 0 for Disabled REVIEW BEFORE SEND 0 1 PA1 0 0 When Review Before Send is enabled th...

Page 124: ...hrough 4 in response to the last question the following prompt will appear You will now assign control relays to be activated when the selected SEND button is used This question works the same way for...

Page 125: ...BM compatible computer for remote programming of the Model 25 Typing in a D at the top menu prompt will open the Remote Programming question loop D REMOTE CONTROL SETUP 1 CHANGE SETTINGS 2 PRINT ALL S...

Page 126: ...the CTS line of the serial port The default is 0 CTS MONITOR 0 N 1 Y PD1 0 The choices are 0 Do not monitor CTS 1 Monitor CTS The CTS line on the serial port is used to hold off the Model 25 from tra...

Page 127: ...last question is entered the Model 25 will automatically save the new settings and return to the top of the Remote Control question loop You can either pass through the loop again or just press the EN...

Page 128: ...A none none none none none none 1011 6 B none none none none none none 1122 1 Diagonal Tone 569 1 979 9 569 1 569 1 979 9 979 9 979 9 All frequencies are in Hertz Tone Number Tone Groups Mot B Mot Z...

Page 129: ...3 3 4 2 4 2 5 2 3 3 3 3 4xx 1 6 4 4 3 2 3 2 4 4 4 4 2 6 4 4 4 4 5xx 5 5 3 2 5 5 2 6 5 5 2 6 5 5 5 5 3 6 6xx 6 6 2 4 2 5 6 6 2 5 6 6 6 6 3 5 6 6 7xx 6 1 4 2 5 2 6 2 4 5 6 2 6 2 4 5 6 3 8xx 5 6 3 4 3 5...

Page 130: ...5 6 Notes 1 On General and Modified General plans there are different diagonal tones for different pager blocks 2 General has an eleventh pager block with cap codes Axx which is not coded on the Mode...

Page 131: ...9 2898 0 24 1723 0 39 1025 0 54 609 0 10 2799 0 25 1664 0 40 990 0 55 588 0 11 2704 0 26 1608 0 41 956 0 56 568 0 12 2612 0 27 1553 0 42 923 0 57 549 0 13 2523 0 28 1500 0 43 892 0 58 530 0 14 2437 0...

Page 132: ...oup calls are accessible using pager numbers 000 011 022 099 that generate the ten group call tones from tone group Z1 The group calls activate 1st tone Z1 pagers cap codes 1xx 5xx and 7xx Five Six To...

Page 133: ...Digits 0 through 9 as well as A B C D and Quick Call One 2 2 Frequencies and Timings A Series B Series Z Series Tone Freq Code Freq Code Freq Code 0 358 9 CA 371 5 CB 346 7 CZ 1 398 1 DA 412 1 DB 384...

Page 134: ...655354 First 5 digits Address 00000 65535 Sixth digit Function Code 0 4 0 cancel function Selectable number of repeats 3 9 4 normal Golay Sequential Format 7 Digit Capcode First 6 digits Address NNNNN...

Page 135: ...g the pins 4 Install the new decoder IC for the Model 25 in socket U18 U18 is located on the Digital Encoder board 5 Carefully and without bending their pins remove the old 28 pin EPROMs from sockets...

Page 136: ...ing in the selection number 1 The programming of the tone format selection remote control and general and send button setup is described in detail in either the PROGRAMMING ENCODER FROM FRONT PANEL se...

Page 137: ...is used to alter the mode of operation for the encoder The two operating modes are the instant call mode and remote control mode A mark level on the RMT CTL signal configures the encoder in the insta...

Page 138: ...iated had completed This option has the advantage of giving the computer the priority which is important if the computer handles the emergency dispatching and the operator handles normal traffic This...

Page 139: ...e stack of calls will not be completed In addition if the encoder is not idle when the mode is switched it may take much longer for the new operating mode to take effect since the mode will not switch...

Page 140: ...nnel remains busy If after 30 seconds the channel is still busy then the encoder will give up the attempt to transmit the individual call output an EOT end of transmission control character and will g...

Page 141: ...s reset Computer Port Physical Specifications Parameter Description Connector DE9 S socket Signals Pin 1 DTR data terminal ready provides space Pin 2 no connection Pin 3 TX DATA transmit data from enc...

Page 142: ...he attempted instant call stack has completed its calling sequence This does not mean that each call was sent some could have busied out When encoder sends ACK it is again idle and can accept the next...

Page 143: ...t blade into the small notch on the side of the key cap and turn clockwise Install the new label and replace the key cap Note the orientation of the label inside the key cap before inserting The label...

Page 144: ...iority option 130 RMT CTL signal 129 suggested remote control settings 134 call capacity 5 call logging 17 calling sequence 22 calling sequence summary 24 causes for error beeps 20 channel busy impeda...

Page 145: ...ownload 105 F4 Upload 106 F5 Reset 107 F6 Stack Entry 107 G general and send button setup 92 general operation programming 92 general setup from a PC 114 generating alerts 12 Golay format 85 126 groun...

Page 146: ...05 F4 Upload 106 F5 Reset 107 F6 Stack Entry 107 Plectron 86 power connections 44 power on operation 9 power on self test 55 power supply connection 31 programming custom calls 87 programming enable d...

Page 147: ...e monitor 43 tones alert 4 transmitter control 40 troubleshooting continuous self test 57 encoder fault identification 59 error codes for instant call faults 57 error codes for power on self test 56 i...

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ZETRON Model 25, Product Manual

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