Zetron Products or Zetron Accessories, or refund the purchase price, at Zetron’s option, after return of such items by buyer to Zetron. Shipment shall be paid for by the buyer. No credit shall be allowed for work performed by the buyer.
• C-Tick (Australia) Safety Summary Warning! For your safety and the protection of the equipment, observe these precautions when installing or servicing Zetron equipment. • Follow all warnings and instructions marked on the equipment or included in documentation. • Only technically qualified service personnel are permitted to install or service the equipment.
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• Updated Appendix D to cover the installing of Model 6203 and Model 6204 transponders in a Model 26-based system, see Appendix D: Using a Model 620x in a Model 26-based System starting on page • Created a new appendix covering the setting of receive and transmit levels for both the Model 26 and the station transponder units, see Appendix E: Setting Levels in a Model 26 —...
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Jumper Settings ........................98 Appendix C: Communication Interface Examples ........99 Model 26 / Conventional Radio / Series 4000 Console ............ 100 Model 26 Conventional - Dedicated Radio / Series 4000 Console ........101 025-9158M.1...
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Connections to Radios ....................124 Connections to Wire-line .................... 126 Appendix E: Setting Levels in a Model 26 — Model 620x System .... 129 Equipment for these Procedures ................129 Initial Conditions ......................130 ...
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Model 26 Fire Station Dispatcher COR (R84) ......................... 170 VOX (R86) ......................... 171 MIC (R63) ........................171 TONE (R61) ....................... 171 AUX RX (R137) ......................171 VOICE (R87) ......................171 EAR (R64) ......................... 172 ...
RS-232 port for logging dispatches. At the dispatch end of the system is the Model 26. It allows a dispatcher to remotely control the actions of a Model 6203, receive and display status changes from a Model 6203, and to give verbal announcements over a station’s PA system, all via a wire line or...
Introduction Backwards Compatibility Since its initial release in the early part of the 1990s, the Model 26 system has had a number of hardware and firmware updates take place. Some of these were due to components going out of production and others were due to changes in the firm ware to enhance customer satisfaction with the product performance.
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Model 26 AUX Unit Model 26 Slave Unit Model 26 Slave Unit Model 26 Master Unit CAD Console Each Model 26 Master or Interface or Slave unit is a dispatcher Serial Printer position. A total of 15 positions is possible.
Introduction Front Panel Description The front panel of a Model 26 consists of 10 columns of six buttons each for a total of 60 buttons for sending commands. Each button has two light-emitting diodes (LEDs) associated with it: one green and one red for indicating status.
Front Panel Expansion Front Panel Expansion Up to three expansion panels can be added to a Model 26 giving a total of 240 buttons and 480 LEDs. There may also be up to 15 different dispatch positions. Each position is operationally identical to the Master Position.
Figure 4 shows a typical interface. If the radio does not provide a COR output signal the Model 26 has an internal, adjustable threshold VOX circuit for detecting channel activity. Along with these special hardware circuits, there are a number of user configurable software parameters for configuring and optimizing this interface.
Model 26 can use its internal VOX circuit. Trunked Radio Interface Besides the 2-wire or 4-wire transmit and receive connection, the Model 26 provides an open drain Channel Request signal (the PTT connection) and a Channel Grant input (the COR connection).
A second person is required for alignment between the Model 6203 and Model 26. One person works at the dispatch side (M26) and the other in the remote station (M6203). Having two people is the most efficient method of setting the RX and TX FFSK levels.
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Equipment Needed jumper JP12 on the Model 26 rear panel PC board (702-7314) is moved to the “A” position, a null-modem cable can be used instead. • An oscilloscope (and/or a Radio Service Monitor) is used for level setting. For RF-based interfaces, a Radio Service Monitor has the added benefit of sensing deviation.
By starting at the beginning of this section and moving through it sequentially, the Model 26 should be completely installed and configured at the conclusion of the section. This section is also intended as a reference for many settings and adjustments of the Model 26.
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JP8 should also be in the A position to pull-up the COR input. JP4 AND JP5 (MODEL 26 CHAIN BAUD RATE) These two jumpers control the baud rate used by the Model 26 “CHAIN” interfaces when multiple units are linked together. The baud rates available are 2400, 4800, and 9600.
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C or B should be used instead.] If the Model 26 is connected to a radio with no COR output or is connected to a wire line, then the VOX circuit should be used to detect channel availability. In either case, JP8 must be in the B position (pulled-up) to prevent the RX COR input from interfering with the VOX signal (refer to the JP3 description).
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No jumper = Selects 3.3 kΩ JP11 should be in the A position (600Ω) if there is only a single Model 26 in the system. If there are additional Model 26 panels in a multiple position system, and they are...
Switches 1 through 4 are used to set the binary address of the Model 26. The primary Model 26 must always be address number 1 (switch 1 = On and switches 2 through 4 = Off). Any additional Model 26s must be addressed up sequentially (Refer to Figure 7).
Table 1: DIP Switch Positions for Address Settings Binary Dip Switch Positions Address Electrical Connections All external electrical connections to the Model 26 are made on its rear panel. See Figure 6. For information on connecting the Model 26 communications interface to a variety of 025-9158M.1...
Model 26 to the CHAIN OUT port of another using a 6-conductor (one-to-one twisted pair) cable. Up to 15 Model 26 units can be connected together in this fashion. This port is a 2-wire type port (EIA 485) and the connection should be less than 1000 feet. The standard cable used for this connection is a Zetron part number 709-0650, which is 50 feet in length.
This is the Push-to-Talk output for interfacing to radios. It is an open-drain (PTT) output. It is grounded when the Model 26 starts transmitting and remains grounded until the transmission ends. At all other times it is in the open drain state.
This input, when connected to a radio Carrier Operated Relay (COR) output, (RX COR +) gives the Model 26 an indication of when the radio is receiving a carrier signal (channel busy). It can also be used as an input for a “Channel Grant” signal in a trunked radio system.
3.5 amps. HANDSET Connector This port provides an interface into transmit and receive audio channels of the Model 26. Typically a Zetron handset is connected here. The pin descriptions for this connector are as follows:...
Appendix G: General Troubleshooting Guide on page 145). When a printer is interfaced to the Model 26 for logging purposes, it must have a serial interface. The more common parallel printers will not work with this port. When a system is configured to support the use of both a primary and a backup Master Model 26, the CAD/Printer port will be disabled for the two Model 26s with address 1 and 2 when they are in slave mode.
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Model 26. Each Model 26 must have a unique address and the primary Model 26 must be address number one. This address is set by the first four switches on the OPTION SWITCH.
Once a parameter has been entered or selected it is saved in the EEPROM of the Model 26. The Model 26 remembers the parameters set in this program, even after it has been disconnected from all sources of power.
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If the Model 26 is operating in this mode then all of the Model 6203s should be operating in this mode too. When the Model 6203s operate in this mode, they cannot transmit...
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The reason this mode must be used on “star” network wire line systems is because Model 6203s cannot hear other Model 6203s when they transmit, only the Model 26. In all other communications modes the Model 6203s may transmit unsolicited. When using these other modes, they listen to see if the line is clear to prevent transmit collisions.
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Figure 11) These two communications modes are designed for operation with a conventional radio interface where the Model 26 uses the COR signal provided by the radio to detect channel availability. The only difference between these two modes is the logic state the COR line is in when the channel is clear to transmit on.
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PTT line signaling a transmit request. When a channel is available the radio must respond with a grant signal to the Model 26’s RX COR input. There are four other system parameters associated with the Channel Grant signal: Trunking Grant Debounce, Trunking Grant Timeout, Trunking Grant Retry Delay and Trunking Tx Delay.
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Stations Per Poll Time parameter (discussed in the following sub-section) to control the polling speed of the Model 26. It can have a minimum value of zero (0) and a maximum value of 9:59:59.99 (9 hours, 59 minutes, 59 seconds and 990 milliseconds).
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Installation Note If a poll cycle has started, all stations will be polled before the M26 starts checking the status of alerted stations. Even though the actual alert time will NOT change, longer than expected delays in “PA Ready” are possible, especially with a longer key-up delay setting.
Model 26 positions (connected together at the CHAIN port). This parameter is important in optimizing system performance because it limits the primary Model 26 to polling only existing secondary Model 26 units. The value of this parameter can range between 1 and Keyup Delay This parameter is found in the System Configuration Menu.
This parameter is found in the System Configuration Menu. The value of this parameter is the period of time for which the Model 26 will not transmit on the channel after it stops receiving non-FFSK data. It is used to prevent the pauses in normal speech (VOX communication mode) from giving a false channel clear indication.
This parameter is found in the System Configuration Menu. This parameter is the period of time, after the Model 26 sends or receives FFSK data that it continues to assert the DATA MUTE signal. This is particularly important after a transmission for which the Model 26 expects a response.
CAD system, text messages can be sent for printout at the Model 6203s. Normally the Model 26 polls the Model 6203 to verify the receipt of the text. By setting this option to NO, the Model 26 will not poll the Model 6203s, which reduces the overall system time requirement for the text command.
This parameter is found in the PA Configuration Menu. It holds the maximum period of time, in seconds, that the Model 26 will wait for the dispatcher to key up after all the Model 6203 PAs are ready. If this parameter times-out before the dispatcher’s microphone is keyed, the Model 26 will send a PA OFF command to all Model 6203 units.
CAD/Printer port (see Figure 17). Selecting this parameter places the Model 26 in CAD mode (as soon as OPTION SWITCH-7 is placed back into the “OFF” position) and displays the menu parameters associated with CAD. Baud Rates This parameter is found in the Port Configuration Menu in both the CAD mode and the Data Logger mode.
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CAD/Printer port (see Figure 18). Selecting this parameter places the Model 26 in DATA LOGGER mode (as soon as OPTION SWITCH-7 is placed back into the “OFF” position) and displays the menu parameters associated with DATA LOGGER.
Figure 18). It holds the CAD interface transmit retry timeout value. This is the time interval that the Model 26 waits for a response, on the CAD interface, after sending a CAD data packet. If no response is received during this time interval, the Model 26 resends the data packet. This parameter accepts a value between 0 and 59.99 seconds.
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Each beep type has a number of configurable parameters so the events associated with the audible prompt can have a distinct sound or the prompt can be disabled completely. Not all beeps produced by the Model 26 are configurable. All the configurable beep prompts are displayed on this menu.
Installation When one of the beep types is selected for configuration, the menu in Figure 21 displayed so its parameters can be altered. Figure 21: Power-Up Beep Parameters Menu Beep Volume This parameter sets the volume level of the selected beep. It accepts a value between 0 and 9 (zero does not mean off).
Software Configuration Program Clock Setting Menu This menu is selected from the Main menu by pressing the “5” key and displays the menu for setting the date and time. The date and time is only used for time stamping Data Logging entries.
Pressing N will exit this selection without reprogramming any parameters. FFSK Test Menu This item is found on the Main menu. When this menu item is selected, the menu in Figure 24 is displayed for selecting Model 26 testing tools. Figure 24: FFSK Testing Menu 025-9158M.1...
Model 6203 whose communication link with the Model 26 is being tested. It must be set to zero whenever the Model 26 is returned to the normal operating mode. Whenever this parameter is set to a nonzero value, the Model 26 will only poll the Model 6203 station which that address identifies.
There are a number of adjustable potentiometers (pots) on the back panel of the Model 26. Some of these pots must be adjusted before the Model 26 can transmit and receive properly. The order in which the adjustments are made is important. Each pot will be described below in the order that it should be adjusted in a new installation.
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This potentiometer adjusts the output level of the FFSK transmissions. Adjust the FFSK output signal level of the Model 26 for suitable signal amplitude at the input terminals of the receiving unit (Model 6203). For wire line communication interface this level should be 1.0 volt peak-to-peak (Vp-p).
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The appropriate pot should be adjusted for a FFSK receive level of 1.0 VP-P at the FFSK test point on the rear panel of the Mode 26. If this level cannot be obtained with this pot, the FFSK POST-RCV pot can be turned to increase this signal. Use a remote Model 6203 transmitting an FFSK test tone to produce a receive signal.
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Adjust this pot as required. TONE XMIT This pot adjusts the tone level heard in the HANDSET earpiece of the Model 26. If this pot is adjusted completely counterclockwise tones to the HANDSET ear will be muted.
This chapter begins with a summary of the connection of a CAD processor to the Model 26 and the programming of the Model 26 to prepare for CAD commands and responses. The summary is followed by a description of the protocol and the data level which describes the data content of each packet.
“Monitor Mode”, since the protocol uses 8 bit data in which many of the control characters will not be displayed on an ASCII screen. At this point the Model 26 will try to establish communication by sending the Null packet.
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The NULL packet is transmitted at power on as a means of setting the receiving entity’s receive LLSEQ# to some known value. Both the CAD and the Model 26 must make their first transmission after reset a null packet (one with no data bytes) as shown here:...
The Undefined Command Number packet also has only one data byte, which is the command number, which was not defined. This response occurs when the Model 26 does not recognize the command sent by CAD. (This response should only be seen when developing software on the CAD system).
The High Level Sequence Number included in the data of each of the Command packets is incremented by the CAD each time it sends a new packet. The Model 26 then returns that sequence number as part of the resultant status change message and in the High Level ACK/NAK.
If the Model 26 does not respond immediately with an LLACK, the CAD will re-transmit the request. If the Model 26 responds with an LLACK and the wrong LLSEQ#, the CAD will re-transmit the request.
Protocol Level Transmitted from CAD to M26 Response from M26 to CAD tN+3 <Station Full Status HL 23,LLFF tN+4 LLACK FF> tN+5 <High Level ACK HL 23,LL 00 tN+6 LLACK 00> CAD Command Unit State Control When the CAD sends a unit state control command which causes a change in the state of the Model 6203 transponder, the interchange is as shown below.
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Any CAD command is allowed to be inserted in the middle of a text sequence. When a PA channel has been opened to a Model 26, text should not be transmitted until the PA channel is closed. While a text channel is open, the automated polling sequence is suspended until the End Text message (in the wire line communication mode, system polling is continuous).
Unit State Control Station Relay Control Station Full Status Request Send Text Define Text Channel End Text A complete list of Model 26 messages is included in the following table: Response Name Number Page Station Unit Status 3(1) Station Inputs Status 3(3) Station Misc.
00 to 0F 00 or 0800 Example 0004 (10)03 Model 26 Response: Low Level ACK/NAK, Response 3(1), High Level ACK/NAK, Seq Num High Level Sequence Number, Range 1 - 255 Cmd Num Command Number = 0 Station Address Range: 1 - 1023, &...
Range: 1 – 1023 Model 26 Status Response Packets The responses of the Model 26 to a state change at the Model 6203s involve two types of packets, the split status which is sent as pieces of status relating to what actually has changed, and the full status report which combines all of the status for a particular Station Transponder (Model 6203).
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CAD Interface Installation Model 26 Response 3(1): Station and Unit Status (Fmt 1) Byte # LABEL Resp Station Unit State Alert SEQ# SEQ# Address Nmbr Range 00 or 0001 to 01-04, 00 to 00 or 03FF Example (10)03 0007 CAD Response: Low Level ACK/NAK...
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Range: 1 - 1023 Input Num Sense Input Number, Range: 1 - 4 State Input State: Zero = Input off, Non-Zero = Input on Model 26 Response 3(4): Station Misc. Bits Status (Fmt 4) Byte # LABEL Resp Prtr Prtr...
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CAD Interface Installation Model 26 Response 3(5): Station Unit Enables Status (Fmt 5) Byte # LABL Resp Station Unit CKSUM SEQ# SEQ# Address Nmbr Enable Range 00 or 0001 to 00 to 03FF Exmpl (10)03 0008 CAD Response: Low Level ACK/NAK...
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Data Level Packet Details CAD Response: Low Level ACK/NAK HLSeq# High Level Sequence Number = 00 if unsolicited, else 01/FF Resp # Response Number = 12 Station Address Range: 1 - 1023 Stn Mode Station Mode bits (1=On/Active 0=Off/Inactive): MSB = 7 Comm Error Station Mic Station PA...
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Not Used Not Used Not Used Emergency: 0 = Off, 1 = On LSB = 0 All Station: 0 = Off, 1 = On Model 26 Response 10: Alarm Status Byte # LABEL LL SEQ# HL SEQ# Resp. Num Stn Addr.
00 to FF 00 to FF 00 to FF 00 to FF 00 to FF Model 26 Response: Low Level ACK/NAK, High Level ACK/NAK Seq Num High Level Sequence Number: , Range 01 - 255 Cmd Num Command Number = 4...
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00 to FF 03FF 03FF 0116 0147 etc. Model 26 Response: Low Level ACK/NAK, High Level ACK/NAK Seq Num High Level Sequence Number, Range 1 - 255 Cmd Num Command Number = 5 Num Stns Number of Stations included in this channel (<= 16, 1 for All Stations)
Command Number = 11 Text Chn Text Channel must be 0 Model 26 Text Response Packet There is only one text related response sent by the Model 26. Model 26 Response 13: Text Flow Control Byte # LABEL LL SEQ# HL SEQ# Resp.
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CAD Interface Installation Model 26 Response 255: Undefined Command Byte # LABEL LLSEQ# HLSEQ# Resp. Num Cmd Code CKSUM Range 00 or FF 01 to FF 00 to FF Example CAD Response: Low Level ACK/NAK HLSeq Num High Level Sequence Number, Range 1 - 255...
Model 6203 acknowledges its poll, these LEDs will change to indicate the current state of the Model 6203s associated with them. Polling During inactivity the Model 26 polls each Model 6203 at the rate set in the Poll Time parameter (refer to Poll Time on page 37).
Operating the Model 26 used between the Model 26 and the Model 6203s. If the medium is wire line, then it is best to poll as often and as quickly as possible. If Communication Mode is set to Wire Line, this is done automatically at 1-second intervals and the poll rate cannot be altered.
LED representation on the Model 6203. Every unit in the system should have at least one unit button on the Model 26. This allows their status to be displayed and their addresses can be used by system buttons.
This command can be initiated at the Model 6203 when a unit’s “QRTRS/AIR” and “OUT SERVICE” buttons are pressed simultaneously. Unit buttons for this command are not normally found on the Model 26. This unit command is more efficiently handled by a system button using the same command.
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Before the Model 6203 returns a PA ON status it must first finish sending any alert tones that have been programmed to sound. Once the Model 26 receives the PA ON status from the Model 6203, the dispatcher may key the microphone at the Model 26 and speak. If the...
System Buttons on page 83). Every station in the system should have at least one station button on the Model 26 so their station status can be displayed and their station address used by system buttons. Usually this button would be a “Station Alert” button. All other station commands are more efficiently handled (space wise) by system buttons.
This command turns on a station PA for announcements from the dispatcher. Once the Model 26 receives the PA ON status from the Model 6203, the dispatcher may key the microphone at the Model 26 and speak. If the time period for the Wait for Dispatcher...
If it is desired to show the current status of a relay at the Model 26, one set of contacts on the relay should be wired to one of the sense inputs at the Model 6203. The condition of this sense input can then be displayed on the LEDs associated with the relay button at the Model 26.
LEDs LEDs There are LEDs on both the front and rear panels of the Model 26. The LEDs on the rear panel are normally not visible to the dispatcher. They are for use by maintenance personnel. Front Panel LEDs There is a pair of LEDs, one green and one red, associated with each button on the front panel of a Model 26.
Blink Clear (None of the Above) It is possible for the Model 26 to have more than one station status at any given time such as “Alert” and “PA On”, or “Alert” and “Emergency”. Since the LED pairs only show...
The COR circuit is enabled only if the Model 26 is be running in either COR or Trunking modes. If this LED is on, then the Model 26 is receiving a logic low signal on its RX COR+ input. If the communications mode is set to “COR, TX on COR High”, the Model 26 assumes the channel is busy and does not transmit.
Operating the Model 26 If this LED is off, then the Model 26 is receiving a logic high signal on its RX COR+ input. If the communications mode is “Trunking, Chan Grant on High COR” and the Model 26 has requested a channel for transmission by grounding its PTT signal (and the Trunking Grant Debounce time period has expired), the Model 26 thinks a channel has been granted and it can transmit.
The Model 26 then polls each Model 6203 to get its current status. As long as the microphone is keyed the Model 26 will not send a “PA OFF” command. After the microphone is unkeyed the Model 26 waits for the period of time held in the Hold After Dispatch Time-out parameter before sending a “PA OFF”...
Operating the Model 26 Data Logging The Model 26 has the capability to send a time stamped record of its activities to a serial printer, for permanent record keeping. This capability is not available when a CAD system is connected to the Model 26 because they both must use the same port (CAD/PRINTER port).
Only the primary Model 26 transmits and receives data from the remote Model 6203s. Normally only the primary Model 26 can be connected to a CAD system or output data to a Data Logger. See the CAD Interface topic on page 90.
System Configuration Appendix A: Programmable Settings and Defaults System Configuration Parameter Default Setting Actual Setting Wire Line Number of Positions Keyup Delay 0.00 seconds Retry Period 1.00 second Voice Debounce 1.50 seconds FFSK Mute Debounce 0.25 seconds Data Mute Active Polarity PA Ready Active Polarity HIGH Polling After Text...
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Appendix A: Programmable Settings and Defaults Parameter Default Setting Actual Setting Poll Time 0:00:10.00 Stations per Poll Time Number of Positions Keyup Delay 0.00 seconds Retry Period 1.00 second Max Timeout 0.00 seconds Voice Debounce 1.50 seconds FFSK Mute Debounce 0.25 seconds Data Mute Active Polarity PA Ready Active Polarity...
PA Configuration Parameter Default Setting Actual Setting Trunking Grant Retry Delay 0.00 seconds Data Mute Active Polarity PA Ready Active Polarity HIGH TX Delay 0.00 Polling After Text Rekey Minimum Time 0.0 seconds PA Configuration Parameter Default Setting Actual Setting Wait for Dispatcher Timeout 10 seconds Hold after Dispatch Timeout...
Appendix A: Programmable Settings and Defaults Beeper Configuration Parameter Default Setting Actual Setting Power Up (Beep) Volume Number On Time Off Time M6 Talk Request (Beep) Volume Number On Time Off Time M6 Com Error (Beep) Volume Number On Time Off Time Emergency (Beep) Volume...
FFSK Output Range A = Telephone / B = Power C = Radio JP11 2-Wire Rcv Impedance A = 600 Ω / B = 3.3 kΩ JP12 RS232 RxD Pin A = Std Pin 2 / B = Zetron Pin 4 025-9158M.1...
Jumper Settings Appendix C: Communication Interface Examples This appendix provides various general examples for interfacing the Model 26 Station Dispatcher to both console and radio equipment.
Appendix C: Communication Interface Examples Model 26 / Conventional Radio / Series 4000 Console Zetron Model 4010, Model 4024 or Model 4048 Channel Card Option Switch settings: • Set Busy Transmit Inhibit switch ON for applicable channel. • Set Cross Mute Enable switch (OPT) ON for applicable channel.
Model 26 Conventional - Dedicated Radio / Series 4000 Console Model 26 Conventional - Dedicated Radio / Series 4000 Console Zetron Model 4010, Model 4024 or Model 4048 Channel Card Option Switch settings: • Set Busy Transmit Inhibit switch ON for applicable channel.
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Appendix C: Communication Interface Examples 025-9158M.1...
This appendix is intended to aid installers faced with utilizing a Model 6203 or Model 6204 station transponder in new Model 26-based systems, an existing Model 26-based system either as replacement for a failed Model 6 or as an expansion for the system as a whole.
Model 6 units are set up and configured. Unit Number and Serial Programming When used in a fire station alerting system that is controlled by a Model 26 Fire Station Dispatcher unit, the IP interface that is built into the Model 6203 or Model 6204 is not connected to anything.
= 5 the secondary unit number = 5 + 512 = 517 This arrangement allows the Model 26 to keep track of each individual transponder and recognize which units have been paired together. Transponder number assignment is done by setting SW2 and SW1 on the transponder mother board.
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Appendix D: Using a Model 620x in a Model 26-based System Accessing the Serial Settings of an Station Transponder Unit 1. Connect a compatible serial cable (see Connector J1 (DB-9 Printer/Software Configuration Connector) on page 155) between your computer and socket J1 on the transponder board.
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Unit Number and Serial Programming option {3}, PA Un-Muted Mode, is set to Disabled. When you are finished, enter an “e” to return to the top menu. 10. (Optional) Entering a “2” at the top menu opens the Alerts menu. This menu is used to determine what kind of audible alert tone the Station Transponder Unit plays in response to an incoming alert for a particular unit (or the station).
Appendix D: Using a Model 620x in a Model 26-based System 12. (Optional) Entering a “4” at the top menu opens the Inputs menu. From this menu, you can set which polarity is considered the active state for the sense input being programmed.
Unit Number and Serial Programming All of the programmable parameters are described in the following paragraphs. Station or 4 Unit Display This is the first parameter listed in the Station Configuration Menu. It determines whether the first column of LEDs on the Model 6203 front panel represents the station status or a unit (vehicle) status.
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This parameter is found in the Station Configuration Menu. It sets the minimum time, in seconds, that the Model 6203 will wait for a reply from the Model 26 before doing a retry. The Model 6203 also adds a randomly generated time value to this parameter to calculate the total wait time.
In this mode the Model 6203 transponders cannot send the Model 26 any unsolicited status reports. When the Model 6203 has a change of status, in this communications mode, it must wait for a poll from the Model 26 before the status change can be transmitted.
Model 6203 transponder are quickly sent to the Model 26. In this mode of operation the Model 6203 does not check to see if the channel is busy before it transmits.
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Unit Number and Serial Programming Figure 32: Serial Programming of Model 6203 - Alerts Menu There are six different types of alerts that can be received by the Model 6203 and each alert has several different configurable parameters. Selecting one of the unit types, from this menu, displays the menu in Figure 33 for changing the parameters of an alert.
Appendix D: Using a Model 620x in a Model 26-based System Figure 34: Alert Tone Menu Ramp Time This parameter sets the alert tone volume ramp time. The volume of an alert goes from no volume to full volume in seven increments spread over the time period set with this parameter.
Unit Number and Serial Programming This parameter accepts values from 1 to 4. Entering a number either associates or disassociates (toggles) the numbered relay with the alert being programmed. Test Alert This menu selection is found in the Alert Parameters Selection Menu. Selecting this item sounds the tone for the selected alert as presently configured.
Appendix D: Using a Model 620x in a Model 26-based System The Parameter Selection Menu is used to select the way that the relay is reset (deactivated) after it has been activated. It also provides a way to manually operate the relay for test purposes.
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Unit Number and Serial Programming Sense input state changes can also be used to reset Model 6203 relays and to acknowledge alerts. The configuration and assigning of sense inputs is done in the Inputs Menu of the Software Configuration Program. The Inputs Menu is found in the Main menu of the Software Configuration Program and it is used for configuring the Model 6203 sense inputs.
Appendix D: Using a Model 620x in a Model 26-based System Active Polarity This parameter is found in the Sense Input Parameter Selection Menu. It holds the active polarity of the selected sense input. Selecting this parameter toggles the polarity shown under Current Setting.
This mode is used to ensure that audio supplied at the AUX RX audio input is heard. If the Model 6203/6204 unit is used in a Model 26-based system, then the PA Un-muted Mode parameter should be set to Disabled. This prevents the FFSK packet noise from being heard when the PA is “ON”...
Appendix D: Using a Model 620x in a Model 26-based System connection, a programming cable, Zetron part number 709-7208, completes this item • A second person is required for audio level alignment at the Station Transponder Unit, one person works at the dispatch console and the other in the remote...
Installing the Station Transponder Units on Site Figure 40: Mounting Slots on the Rear Panel of Model 6203 6.63 As seen from back side of the IP Station Unit enclosure. Dimensions are in inches. 10.75 Connections to the Station Transponder Unit Many of the connections to the Station Transponder Unit can be made without opening the case.
Appendix D: Using a Model 620x in a Model 26-based System The wiring for power is routed through a hole in the center of the bottom plate. The wiring for the rest of these connections is routed through the grommets on either side of the power connection.
Installing the Station Transponder Units on Site PA Audio Connections All of the PA connections are made to terminal J3 on the transponder board. For this reason, it is most convenient to bring the PA wiring into the Station Transponder Unit through the grommetted hole near the back of the case that is positioned between the fuse holder and the 9-pin serial port connector.
4. Insert the plug back into its terminal and confirm the wires are in the correct slots. Wiring Connections to the Model 620x Wiring connections to a Model 620x used in a Model 26-based system will differ from those used in an IP FSA system for two reasons: •...
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The information provided here is of the most generic type. Interfacing information regarding several specific types of trunked radio systems used in the public safety sector can be obtained by contacting Zetron Technical Support. Caution! Channel Grant signaling must be supported by your radio type, or the system will not function reliably or efficiently due to non-deterministic channel grant response time in most trunking systems.
Appendix D: Using a Model 620x in a Model 26-based System Trunking Radio Interface Unit Radio 4W RX SW-2 SW-2 4W RX 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 RX COR Unit Address = 517 Unit Address = 5 TX & 2W RX TX & 2W RX...
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Wiring Connections to the Model 620x Basic 2-wire Interface • In the Station Configuration Menu of the Model 620x programming, the unit must have its Communications Mode set for Wire Line • The Model 620x 4-wire Receive (R107) pot should be turned all the way down (set fully counterclockwise) •...
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Appendix D: Using a Model 620x in a Model 26-based System Basic 4-wire Interface • In the Station Configuration Menu of the Model 620x programming, the unit must have its Communications Mode set for Wire Line • The Model 620x 2-wire Receive (R135) pot should be turned all the way down (set fully counterclockwise) •...
Model 26 or any of the Model 6203/Model 6204 units, the settings should be: 9600 baud, 8-bit words, 1 stop-bit, no parity checking, and flow control set to...
Setting FFSK Levels in a Radio-based System Model 26 Transmit Level Set the Model 26 Transmit level by performing the following steps. The jumper positions on the Model 26 should be verified prior to setting up the system. Figure 42: Model 26 Jumper Locations...
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Setting the Model 26 FFSK transmit level: 1. At the Model 26, connect the laptop (or PC) to the serial programming port of the Model 26. Set Switch 7 on the rear of the Model 26 to the ON position (places the unit in the programming mode).
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Appendix E: Setting Levels in a Model 26 — Model 620x System 5. When finished making adjustments, let the test signal time-out or stop the test. 6. Leave the laptop attached to the Model 26 and leave it in the FFSK Test menu for now.
Setting FFSK Levels in a Radio-based System Figure 43: Model 26 Rear Panel Adjustments COR/VOX MIC XMIT FSK XMIT FSK POST-RCV TONE XMIT FFSK EAR RCV EAR POST- RCV & SIDE TONE 4-W RCV 2-W RCV BOTTOM Station Transponder Receive Sensitivity...
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Enter a “7” to open the {7} FFSK Test Menu. c. Enter a “1” to initiate the FFSK test mode. The Model 26 should key its radio and transmit for 30 seconds and then unkey. If you finish making adjustments before 30 seconds is up, you can cancel the test by hitting any character key on the computer keyboard.
Jumper # Description Positions Align. Position JP-13 Digital I/F Port Pin 2 Function A = Std, B = Zetron Pin 4 JP-14 Source of Audio to PA A = Normal, B = Aux A(B) JP-15 600 Ohm Aux RCV Termination...
Setting the Model 26 FFSK receive level: 1. Attach an oscilloscope to the FFSK test point (TP6) on the back of the Model 26. The signal to be measured will be approximately 1.0 Vp-p. 2. On the back panel of the Model 26, turn the 4W RCV pot (R69) fully clockwise and the 2W RCV pot (R81) fully counterclockwise.
4-wire = connector J5 pins 3 and 4 2. At the Model 26, connect the laptop (or PC) to the serial programming port of the Model 26. Set Switch 7 on the rear of the Model 26 to the ON position (places the unit in the programming mode).
Enter a “7” to open the {7} FFSK Test Menu. c. Enter a “1” to initiate the FFSK test mode. The Model 26 should key its radio and transmit for 30 seconds and then unkey. If you finish making adjustments before 30 seconds is up, you can cancel the test by hitting any character key on the computer keyboard.
Vp-p (0.35 Vrms) is measured at the FFSK test point (TP6) on the back of the Model 26. If the signal cannot be set low enough, move JP5 in the Model 6203 from position TEL to RAD. If the signal cannot be set high enough, move JP5 from position TEL to PWR.
Appendix E: Setting Levels in a Model 26 — Model 620x System 5. Note the level of the signal at FFSK (TP-6) on the Model 26 and make the necessary adjustment. • If the voltage at FFSK (TP-6) is less than 1.0 Vp-p (0.35 Vrms), turn FFSK POST RCV (R78) clockwise until it reads 1.0 Vp-p...
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Setting Voice Audio Output Level to the Station PA System Note Turning the pot R87 fully counterclockwise will mute the PA audio. 3. Remove any test equipment and close up the station transponder. If the Model 6203 has a handset installed, the final audio level to the handset ear piece can be set with the pot R64.
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Appendix E: Setting Levels in a Model 26 — Model 620x System 025-9158M.1...
Setting Voice Audio Output Level to the Station PA System Appendix F: Sample Data Log The following listing is a sample of data log output from the Model 26. Set Station 1 to alert w/PA from M26 12/22/20 01:23:31 Station - 1...
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Appendix F: Sample Data Log 12/22/20 01:36:24 Station - 1 Status : On Line 12/22/20 01:36:25 Station - 2 Status : On Line Activate Handset at Station 1 12/22/20 01:37:08 Station - 1 Status : Handset on 12/22/20 01:37:12 Station - 1 Status : Handset off Toggle Station1-Unit1 to "Out of Service"...
This section provides some suggestions useful in troubleshooting situations that may occur with the installation or operation of the Model 6203 / Model 26 system. For further help, please contact Zetron at (425) 820-6363, and ask for Technical Support on the Model 6203 or Model 26 equipment.
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(9600, N, 8, 1, No Handshake/Flow Control) within the dumb terminal program (ProComm, HyperTerminal, etc.). Verify dip switch settings. On the rear of the Model 26 move the dip switches 6 and 7 to “ON”. Inside the Model 6203, move dip switches SW1-7 and 1-8 “ON”.
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Solution: Determine if there are communication failures in the system (look at Model 26 for red LEDs lit next to the buttons assigned to stations). Even if there is no indication of communication failures, there can be retries by either the Model 26 or Model 6203(s) due to poor communications that will slow performance.
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3. Exit the programming mode on the Model 26 but leave the cable attached and the terminal emulation program running 4. On the rear panel of the Model 26, place switch 7 in the OFF (down) position to enable the process At this point, all commends from the Model 26 and all responses from the Model 6203 transponders will appear on the terminal screen.
Overview Appendix H: Details of Model 6203/ 6204 Hardware Overview This chapter of the manual is provided as a reference. It contains detailed descriptions of the connectors, jumpers, potentiometers, etc. within the Model 6203 and Model 6204 Station Transponder Units. The information provided here can be used for planning the system design in the beginning.
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Appendix H: Details of Model 6203/ 6204 Hardware Figure 44: Model 6203 Transponder Board – Component Side JP11 JP12 Note: Jumper positions shown DO NOT JP13 indicate final jumper positions after setup. TP-1 JP14 R108 R107 R137 R135 JP15 JP10 Connector J3 (PA) All of the pins on connector J3 are associated with interfacing the Model 6203 to a Public Address (PA) system.
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Connector Details The PA AUD relay (pins 9 through 12) is used to select the source of the PA system audio input. The common contacts from this relay should be connected to the PA system audio input. The normally open inputs, to this relay, are internally connected to the Model 6203 PA output.
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Appendix H: Details of Model 6203/ 6204 Hardware Figure 45: Graphical Representation of PA Relay Pinouts to J3 PA PTT NO B PA PTT COM B PA PTT NC B PA PTT NO A PA PTT COM A PA PTT NC A PA AUDIO COM A...
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Connector Details Table 11: Transponder Board Connector J4 Pinout Description Pin 1 This pin is a cross-busy input. If this pin is externally driven to ground, (XMIT BUSY) the Model 6203 is prevented from transmitting. This pin is never driven low by the Model 6203.
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Appendix H: Details of Model 6203/ 6204 Hardware Table 12: Transponder Board Connector J5 Pinout Description Pin 1 This is an input that is typically connected to a radio Carrier Operated (Rx COR) Relay (COR) output. It gives the Model 6203 an indication of when the radio is receiving a carrier signal (channel busy).
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SW1-8. If SW1-8 is in the ON position, this port is used to access the Software Configuration Program with an RS-232 terminal. If SW1-8 is in the OFF position, this port outputs Model 26 CAD generated text messages. The port operates with the following data parameters (8N1):...
2, P3 with relay 3, and P4 with relay 4. Each of these relays is controlled by the dispatcher via the Model 26. They can also be locally controlled by either a switch connected to the P9 connector (to be discussed), or by an event such as an alert at the Model 6203 (programmable).
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Connector Details Figure 46: Power Supply Board Connector Locations The pin connections for connectors P1 through P4 are as follows: Pin 1 (NO) = Relay Kn Contacts A Normally Open Pin 2 (NC) = Relay Kn Contacts A Normally Closed Pin 3 (COM) = Relay Kn Contacts A Common Pin 4 (NO) = Relay Kn Contacts B Normally Open Pin 5 (NC) = Relay Kn Contacts B Normally Closed...
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Appendix H: Details of Model 6203/ 6204 Hardware Pin 1 = Sense Input 4 Pin 2 = Sense Input 3 Pin 3 = Sense Input 2 Pin 4 = Sense Input 1 Pin 5 = Connected to Model 6203 chassis ground Pin 6 = Connected to Model 6203 chassis ground Pin 7 = +12 Vdc Pin 8 = +12 Vdc...
IP Interface Board Connectors Note The IP connection is not used for any configuration of a Model 26-based system. Information about it is supplied here only to provide a complete hardware description of the Model 6203 or 6204 Station Transponder units.
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Appendix H: Details of Model 6203/ 6204 Hardware Figure 47: Station Transponder Unit Interface Board RJ-45 connector in this end for IP connection VoIP Intercom Board covers this area Figure 48: VoIP Intercom Board RJ-45 RJ-45 External IP network IP connection from connection VoIP Intercom board to IP Station Unit...
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Connector Details Power and audio signals are passed between the VoIP Intercom board and the Station Transponder Unit Interface board through the 20-conductor ribbon cable that plugs into P2 on the Station Transponder Unit Interface board. See Installing the VoIP Intercom Board (P/N 011-0741) for more information about the VoIP Intercom Board.
A special “summing” jumper is used on JP14, except in cases where the M6203 or M6204 is used in a Model 26-based system to replace a Model 6. In that situation, use a regular jumper on A or B as appropriate.
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Position A = Bypasses the AGC circuit (default) Position B = Enables the AGC circuit No Jumper = Prevents reception of all data from the Model 26 The normal position for this jumper is the bypass position (A). The FFSK modem chip that receives this signal in the Model 6203 has its own gain control circuit.
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Appendix H: Details of Model 6203/ 6204 Hardware Note The optimal setting will vary due to different models of radios. When configuring JP5 for a radio, start with “RAD”, but change the setting as needed to get 60% channel deviation. If the Model 6203 is interfaced with a radio, this jumper should probably be in the “RAD”...
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This jumper should be in the position that matches the serial data source on the mating connector. The Model 6203 will always use Position A. An alternate connection is supplied to support some older Zetron equipment which uses pin 4 of the serial cable for received data.
This jumper should be in the position that matches the serial data source on the mating connector. The Model 6203 will always use Position A. An alternate connection is supplied to support some older Zetron equipment which uses pin 4 of the serial cable for received data.
Switch Settings (floating) position. If the “A” position is used, then both the positive and negative pins for a sense input (for example J11 and J12) need to be connected to the sensor. If the “B” position is used, then connecting the negative pin of the sense input to ground activates the sense input.
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J1 mode selection — OFF = Printer mode ON = Software Configuration Program mode Note The Printer Mode referred to under switch 1-8 is no longer supported when the Model 6203 Station Transponder is used with the Model 26. 025-9158M.1...
For more detailed procedures covering setting transmit and receive levels, please see Appendix E: Setting Levels in a Model 26 — Model 620x System starting on page 129. The Model 6203 and the Model 6204 can produce continuous FFSK test tones, for up to 30 seconds.
Transponder Board Jumpers on page 162) and that the Alerting system primary Model 26 is sending an FFSK test tone so the Model 6203 receive level can be measured. Verify that the Model 26 FFSK transmit level has been properly set first.
Potentiometers VOX (R86) This pot adjusts the VOX detect circuit and needs to be adjusted regardless of the communication mode being used. This pot is like a squelch on a radio and should be adjusted so VOX does not detect background noise during times of channel inactivity (DS33 off).
Relay Connectors (P1-P4) on page 156. If a relay is to be controlled by the Model 26, then the Model 26 must have a dedicated relay control button, or if a CAD interface is used, the CAD console must have one.
A protocol flow, 62 protocol level, 58 about screen, 51 sequence numbers, 60 address settings setup summary, 57 model 26, 23 test case, 63 adjustment controls timing protocol, 61 described, 52 CAD retry timeout, 46 AGC circuit enable/disable, 20 CAD/printer...
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119 loop in/loop out, 25 IP Interface board console interface, series 4000 audio connections (P4), 161 dedicated radio for model 26, 101 power connections (P5), 161 single conventional radio, 100 serial port (P3), 161 COR polarity, JP8, 21 COR pot, 54 J ...
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40 stations per poll time, 38 MIC XMIT pot, 55 test beep, 48 misc. inputs log, 45 test station, 51 model 26 trunking grant debounce, 41 CAD interface, 90 trunking grant delay, 42 described, 9 trunking grant retry delay, 41...
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COR/VOX, 87 access program mode, 31 rekey minimum time, 42 CAD/printer baud rate, 31 related manuals, 9 model 26 address, 23 retry period, 40 system block diagram, 11 RS232 RXD function, JP12, 22 SYSTEM LEDs, 86 S T ...
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