Rhein Tech Laboratories 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com APPENDIX K: USER’S MANUAL Please see the following Operator’s Manual.
4100 OPERATING MANUAL DIGITAL/ANALOG PORTABLE RADIO 4100 SERIES PORTABLE RADIO ■ APCO Project 25 – Conventional – Trunked ® ■ SMARTNET / ® SmartZone ■ Analog (FM) Conventional VHF UHF 700/800 MHZ Part No.
4100 SERIES PORTABLE OPERATING MANUAL ■ APCO PROJECT 25 CONVENTIONAL ■ APCO PROJECT 25 TRUNKED ■ SMARTNET®/SmartZone® ■ ANALOG (FM) CONVENTIONAL ■ VHF/UHF/800 MHz Copyright© 2004 by the E.F. Johnson Company The E.F. Johnson Company, which was founded in 1923, provides wireless communication systems solutions for public safety, government, and commercial customers.
TABLE OF CONTENTS TABLE OF CONTENTS SAFETY INFORMATION 4 RADIO-WIDE FEATURES • • • • Federal Communications Commission Regulations 6 Compliance with RF Exposure Standards . . . . . . . . 6 RF Exposure Compliance and Control Guidelines and Operating Instructions. . . . . . . . . . . . . . . . . . . . 7 Contact Information. . . . . . . . . . . . . . . . . . . . . . . . . 7 Electromagnetic Interference. . . . . . . . . . . . . . . . . . 7 Usage Compatibility . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS 5.16 5.17 5.18 Clone Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Wireless Cloning. . . . . . . . . . . . . . . . . . . . . . . . 34 Cloning Procedure . . . . . . . . . . . . . . . . . . . . . . 34 Project 25 Mode Features . . . . . . . . . . . . . . . . . . . 35 Unit ID Code. . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Group ID Code . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS 10 SECURE COMMUNICATION (ENCRYPTION) 10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Encryption Algorithms . . . . . . . . . . . . . . . . . . . 61 Encryption Available With Various Channel Types 61 FIPS and Non-FIPS Modes. . . . . . . . . . . . . . . . 61 Encryption Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Introduction. . . . . . . . . . . . . . . . . . . . . . .
SAFETY INFORMATION RF ENERGY EXPOSURE AWARENESS AND CONTROL INFORMATION, AND OPERATIONAL INSTRUCTIONS FOR FCC OCCUPATIONAL USE REQUIREMENTS FEDERAL COMMUNICATIONS COMMISSION REGULATIONS Before Using Your Portable Two-Way Radio, Read This Important RF Energy Awareness And Control Information And Operational Instructions To Ensure Compliance With The FCC’s RF Exposure Guidelines.
SAFETY INFORMATION • Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition • RF EXPOSURE COMPLIANCE AND CONTROL GUIDELINES AND OPERATING INSTRUCTIONS CONTACT INFORMATION To control your exposure and ensure compliance with the occupational/controlled environment exposure limits, always adhere to the following procedures. Toll-Free: 1-800-328-3911 FAX: 972-818-0639 E-Mail: customerservice@efjohnson.com.
FEATURES SECTION 1 FEATURES NOTE: The availability of many of the following features is controlled by factory coding of your radio, installed options, firmware version, and field programming. Refer to Section 8 for more information. • 1.
FEATURES • • • • • Predefined status conditions (up to 8) can be sent to a dispatcher Dynamic regrouping (dispatcher can automatically gather users on a channel to receive a message) Roaming (SmartZone only) • 1.
CONTROLS AND DISPLAY SECTION 2 CONTROLS AND DISPLAY Figure 2-1 Front Panel Controls 2.1 FRONT PANEL CONTROLS Up/Down Switch - Selects zones when multiple zones are programmed (see Section 3.3). Pressing the upper part of the switch selects the next higher number and pressing the lower part selects the next lower number. This control also provides up/down select in the menu mode and in other modes when up/down select is required. NOTE: The location of these controls is shown in Figure 2-1.
CONTROLS AND DISPLAY Channel Switch - This 16-position switch selects up to 16 channels in the current zone. Additional zones can be programmed to allow up to 512 channels to be selected by this switch. This control can be disabled as described in Section 3.3. DTMF Keypad - The full keypad DTMF models include the 12 keys required to dial telephone and unit ID numbers. Speaker - The radio speaker is located near the bottom of the front panel.
CONTROLS AND DISPLAY soft power down (see Section 3.1.2). These switches can also be temporarily disabled by the keypad lock feature (see Section 3.6) or permanently disabled. - When the scan or the scan list edit mode is enabled, indicates that the displayed channel is a priority channel. If dual priority is used, indicates 2 that it is a second priority channel. Battery - To remove the battery, press the release button on the bottom and pivot the bottom of the battery outward.
GENERAL OPERATION SECTION 3 GENERAL OPERATION 3.1 TURNING POWER ON AND SETTING VOLUME for the Up/Down volume function. When the buttons are used, the volume control function of the knob is disabled (it is still used to switch power). Volume buttons may be used instead of the knob, for example, if accidental turning of the volume knob is a problem. 3.1.1 POWER UP Power is turned on and off by the top panel OnOff/Volume switch.
GENERAL OPERATION After the highest programmed zone is displayed, wrap-around to the lowest programmed zone occurs and vice versa. The selected zone is also displayed briefly on power up. If the selected zone alias needs to be displayed continuously, it must be programmed as part of the channel alias. numeric password must be then be entered as follows. If an incorrect password is entered, “INCORRECT” is displayed and it must be re-entered.
GENERAL OPERATION Seq. Ch. No. Zone Channel 1 1 1 2 16 1 3 16 1 16 17 32 33 • When an unprogrammed channel is displayed, the sequential channel number and “Unprogramd” are alternately displayed. • If an invalid channel number is entered using the 0-9 keys, or the F2 or Channel Select option switch is pressed with “Unprogrammed” displayed, an error tones sounds, “Invalid” is briefly displayed, and the displayed channel does not change.
GENERAL OPERATION UHF range). Radios programmed for SMARTNET/ SmartZone operation, for example, may affiliate while in the charger which causes them to automatically key. Therefore, do not leave radio power on while charging as described above. The following additional low battery indications and conditions may be enabled by programming: • • • • A chirp sounds once a minute in the receive standby and transmit modes. A chirp sounds each time the PTT switch is pressed.
GENERAL OPERATION tional channel selects a transmit and receive frequency and other channel parameters such as squelch control coding. channel selector is always disabled regardless of the Permanent Lockout or Keypad Lock status. Channels can then be selected only by direct channel select (see Section 3.3). • The volume control is permanently disabled if a Volume Up/Down option switch is programmed regardless of the Permanent Lockout or Keypad Lock status. Refer to Section 3.1.3 for more information.
GENERAL OPERATION Subsystem ID (RFSS). The SmartZone mode does not use the WACN and RFSS IDs. When a SMARTNET or SmartZone channel is selected or the radio is powered up on one of those channels, it searches for a control channel. Once a control channel is found, the alias (name) of the selected channel is displayed and the radio attempts to register on the radio system.
GENERAL OPERATION The maximum number is also limited by the available memory. For example, since more memory is required to program a SMARTNET system than a conventional system, the total number of channels decreases as the number of SMARTNET channels increases. The programming software displays a bar graph which shows the amount of available memory space that is used by the current data. Zones A zone is a collection of up to 16 channels of any type.
RADIO-WIDE FEATURES SECTION 4 RADIO-WIDE FEATURES 4.1 OPTION SWITCHES NOTE: For descriptions of the functions controlled by these switches, refer to the section of this manual referenced in the last column of Table 4-1. Almost all the buttons on this radio are programmable as follows: • On the side panel, the three buttons above the PTT switch (see Figure 2-3 on page 11). • On the top panel, the rotary three-position switch and the orange button (see Figure 2-2 on page 11).
RADIO-WIDE FEATURES Table 4-1 Programmable Option Switch and Menu Mode Functions Function Menu Display Alert tones On-Off Tones Backlight On-Off Backlight Call Alert Select Call Alert Call Response Select Call Rsp Cancel Dynamic Regroup Cancel DR Change Keyset (OTAR) Chg Keyset Channel Select Chan Selct Clear/Secure Select Security Clone Select (menu only) Clone Configure (menu only) Config Digital Talk Group Select Select TG Display Information Select Display Emergency Select Emergency Erase Keys (menu
RADIO-WIDE FEATURES The new level is flashed in the display as either “HI POWER” or “LOW POWER”. If selectable power is not permitted on the current channel, “FIXED LOW” or “FIXED HIGH” is flashed and no change occurs. The selected power level for a channel or system is permanent until it is manually changed again. The low power mode may be automatically selected during a low battery condition (see Section 3.4). time. It can be programmed for 15 seconds to 3 minutes, 45 seconds or it can be disabled.
RADIO-WIDE FEATURES 4.8 SCANNING disabled when “Scan Off” is briefly displayed and the icon is no longer indicated. 4.8.1 INTRODUCTION • Scanning monitors the channels in the scan list for messages that the radio is programmed to receive. When a message is detected, scanning stops and the message is received. Shortly after the message is complete, scanning resumes (unless it has been disabled).
RADIO-WIDE FEATURES 2. The channel is then deleted and scanning of the remaining channels in the scan list resumes. Separate delay times are programmable for Radio Wide and Priority scanning. With radio wide and conventional priority scanning, delays of 0-7.5 seconds are programmable in 0.5-second steps. With SMARTNET/SmartZone and P25 Trunked priority scanning, a scan delay of 2-10 seconds can be programmed in 0.5-second steps. 3.
RADIO-WIDE FEATURES this mode by pressing the Scan List option switch again or the F1 or F2 key. Selecting a Priority Scan List NOTE: Only priority scan lists are selectable. Editing a Priority Scan List Conventional Channels - Conventional systems are programmed with a default scan list that is normally selected by all channels in that system. However, there is a programmable option to slave a particular conventional scan list to a zone.
RADIO-WIDE FEATURES Editing a Radio Wide Scan List . Then pressing F2 again takes the channel out 2 of the scan list. Refer to Sections 5.11.3 and 6.12.2 for more information on priority channel sampling. If the RWS Edit option switch or menu parameter is programmed, the radio wide scan list can be edited. Changes are permanent (cycling power does not reselect a default condition). Proceed as follows: 6.
CONVENTIONAL MODE FEATURES SECTION 5 CONVENTIONAL MODE FEATURES 5.1 INTRODUCTION the Monitor Mode (see following) or by the Normal/ Selective option switch or menu parameter (see Section 5.5.5). An overview of the conventional operating mode is located in Section 3.9.2. The following information describes the features unique to analog and digital (Project 25) conventional operation. Refer to the preceding “Radio Wide Features” section (4) for information on features common to all operating modes. 5.
CONVENTIONAL MODE FEATURES receive Call Guard squelch on analog channels or group ID code detection on P25 channels. When selective squelch is disabled, “Sq Normal” is flashed in the display, and when it is enabled, “Sq Select” is flashed. feature, “BUSY” is displayed, a busy tone sounds, and the transmitter is disabled. The Busy Channel Lockout feature can be programmed to operate as follows. Each conventional channel can be programmed differently.
CONVENTIONAL MODE FEATURES programmed for the transmit mode determines the selective squelch type used. are taken and then the bits are rotated to determine if a valid code was received. Proceed as follows to select a code using the Squelch Select List option button or menu parameter: 5.5.5 SELECTIVE SQUELCH CODE SELECT (CTCSS/DCS/NAC) 1. Press the Squelch Select List option switch or select the Sqlch Code menu mode parameter. Then press the Up/Down switch to select the desired code.
CONVENTIONAL MODE FEATURES • • • • gency option switch or menu parameter is required for these functions. Emergency Alarms and Calls are transmitted on the global (radio wide) emergency zone/channel if one is programmed. If it is not programmed, the emergency is transmitted on the selected channel. The emergency programming of the system to which that channel is linked controls the emergency operation. It can be programmed for times up to 7.5 minutes.
CONVENTIONAL MODE FEATURES The Emergency Alarm is then sent as described in Section 5.10.2 if applicable. sounds. This alert tone can be disabled if desired, and neither occur if Silent operation is programmed. 2. If the preceding Emergency Hot Mic feature is enabled, the call is automatically transmitted without pressing the PTT switch. If it is disabled, press the PTT switch and begin speaking as with a standard call.
CONVENTIONAL MODE FEATURES 5.11.2 TRANSMITTING IN SCAN MODE frequency as the priority channel and is programmed with CTCSS/DCS squelch control. Each conventional scan list can be programmed for one of the following modes. These modes determine if priority sampling occurs and also the channel on which transmissions occur while scanning. Refer to the next section for more information on priority sampling. Either a single or dual priority channels can be programmed if desired.
CONVENTIONAL MODE FEATURES 3. Press the PTT switch and if the Busy Channel Lockout feature is programmed on the channel (see Section 5.4), the transmitter is automatically disabled if the channel is busy. Otherwise, busy and out-of-range conditions are not indicated. Changing the Priority Channel If a fixed priority channel is associated with the current scan list, it can be changed if the Priority option switch or menu parameter is programmed.
CONVENTIONAL MODE FEATURES 5.15 MDC1200 COMPATIBILITY The wireless cloning feature utilizes the P25 data functionality of the radio. Therefore, a conventional P25 channel must be programmed in both radios and the slave radio must have been programmed with a P25 Unit ID. In addition, Data Registration must be enabled in both radios. If it is not programmed, “Disabled” is displayed.
CONVENTIONAL MODE FEATURES also displayed for 0.5-7.0 seconds or continuously during the call. F2 key to begin the data transfer. This mode overwrites all this information currently in the slave radio. None of the previous information is retained except for the IDs as described in Section 5.16.1. P25 PTT ID- The unit ID of the radio placing the call is displayed. 5.17 PROJECT 25 MODE FEATURES P25 Talk Group - The alias of the talk group on which the call is being received is displayed.
CONVENTIONAL MODE FEATURES 5.17.6 P25 CONVENTIONAL TELEPHONE CALLS programmed. Only the individual ID of the target radio is sent (a talk group ID is not sent). The radios that can be called are preprogrammed in the Unit Call list. General To receive a Unit Call, the RF channel of the call must be selected or scanned and the correct NAC and unit ID must be detected. The ID of the calling radio is then transmitted back.
CONVENTIONAL MODE FEATURES 2. To answer the call, press the Phone option switch or select that menu parameter and press the PTT switch to talk and release it to listen. In addition, the phone mode is indicated by the icon. 3. If required, press the Up/Down switch to display the desired number. The alias and telephone number are alternately displayed. 3. When the call is finished, end it as in the preceding step 6. 5.17.7 CALL ALERT 4. Briefly press the PTT switch to send the access code.
CONVENTIONAL MODE FEATURES tions can be preprogrammed, and they are identified by an alias. If the Status option switch or menu parameter is programmed, status conditions are sent as follows: menu parameter. The alias of the last ID called is displayed. 2. If required, press the Up/Down switch to display the desired radio. The alias of each number is displayed. 1. Momentarily press the Status option switch or select that menu parameter. The alias of the current status condition is displayed. 3.
CONVENTIONAL MODE FEATURES Down switch to scroll through the available parameters which are as follows. for the “Keypad Programming” function. The keypad programming mode is indicated by “CHNG ZONE” and in the display. • • • • Keypad programming allows conventional channel parameters such as the transmit and receive frequency, Call Guard squelch code, and encryption key to be changed. In addition, several conventional mode timers can be changed.
CONVENTIONAL MODE FEATURES CONV TIMER - Selects the conversation timer. Press the Up/Down switch to increment/decrement the timer in 30-second steps from 0-450 or disable it by selecting 0 seconds. When the desired value is displayed, store it by pressing the F2 switch. Press the F2 switch to select the “ZONE CHG” parameter and then scroll through the programmed zones by pressing the Up/Down switch. When the desired zone is displayed, select it by pressing the F2 switch. 5.18.
CONVENTIONAL MODE FEATURES following choices. When the desired setting is displayed, store it by pressing the F2 switch. CHAN SPC (Analog Only) - Selects either wide or narrow band channel spacing on analog channels only. Press the Up/Down switch to select “WIDE” or “NARROW”, and when the desired setting is displayed, store it by pressing the F2 switch. • • • NOTE: The next two parameters are programmed only if the radio is programmed for encryption.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES SECTION 6 SMARTNET/SMARTZONE/P25 TRUNKED FEATURES 6.1 INTRODUCTION 3. Press the PTT switch and begin talking. An optional talk permit tone may sound to indicate when talking can begin. Events that may occur are as follows: An overview of the SMARTNET/SmartZone and P25 Trunked operating modes is located in Section 3.9. The following information describes the features unique to these modes of operation.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES • channel (with scanning disabled). When the selected channel is programmed with both Talk and Announcement groups, only the Talk and Announcement group IDs are detected. Other IDs in the Announcement group are detected only if no talk group is programmed.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES • If the radio being called is on the air, “WAIT” is displayed and ringing is heard until the called party answers or for 20 seconds, whichever occurs first. Pressing the PTT switch or an option key stops the ringing but not the call. When the call is answered, the voice of the called party is heard. 3. Press the PTT sw or the F2 key to initiate the call. • If the called radio does not answer within 20 seconds, a continuous tone sounds and “NO ANS” is displayed.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES 6.5.4 RECEIVING A PRIVATE CALL (ALL TYPES) only DTMF keypad models can directly dial telephone numbers using the keypad. The keypad remains active during a call for overdialing DTMF digits. 1. When a private call is received, “CALL RCVD” is displayed and the call tone sounds once. 6.6.2 PLACING A TELEPHONE CALL 2. To answer the call, press the Private Call option key or select that menu parameter and then press the PTT switch and begin speaking.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES 6.7 CALL ALERT Each time the PTT switch is released, a go-ahead tone is sent to the landside party to indicate when they can respond. To dial a number after the connection is made, press the PTT switch and dial the number using the microphone keypad. • If the selected telephone number is not valid, “INVALID” is displayed and an alert tone sounds. Select a valid number. • If the system is busy, “BUSY” is displayed and the busy tone sounds.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES 6.7.3 INITIATING A PAGE 6.9 SENDING STATUS CONDITIONS 1. With a SMARTNET/SmartZone or P25 Trunked channel selected, momentarily press the Call Alert option switch or select that menu parameter. The alias of the last ID called is displayed. The status feature allows you to manually or automatically send your current status to your dispatcher. Up to eight status conditions can be preprogrammed, and they are identified by an alias.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES cycled or by pressing and holding the Emergency option switch. 3. Talk group of the selected channel 4. Announcement group of the selected channel • 6.10.3 EMERGENCY CALLS The emergency programming of the system to which that emergency talk group is linked controls the emergency operation. General An emergency call urgently requests access to a voice channel (an emergency tone usually does not sound at the console).
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES 6.12 SMARTNET/SMARTZONE/P25 TRUNKED SCANNING FEATURES press the PTT switch and begin speaking as with a standard call. 6.12.1 GENERAL 3. All group calls which follow are then emergency calls (private, telephone, and call alert calls are not allowed). If the channel is changed, the call is made on the emergency talk group programmed for the new channel. If the Surveillance Mode is enabled (see Section 4.7), all indicators, lights, and tones are disabled.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES 6.13 DYNAMIC REGROUPING trunked site or roaming between several trunked sites. Operation in these modes is the same as just described in the preceding sections (6.1-6.13) with the following additional features: The dynamic regrouping feature allows a dispatcher to change the current talk group or switch radios to a predefined regrouping channel to receive an important message.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES zone controller is active. However, if the zone controller fails, this is detected and the Zone Fail Site Lock mode is entered. The only site the radio is then allowed to operate on is its home site. If its home site is not available, “Out-of-Range” is displayed. A zone controller failure is detected by determining that every site in the dynamic site list is in Site Trunking.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES 2. When another talk group is selected, the active valid site for TG1 is stored in EEPROM memory. access permissions to steer certain talkgroups to particular sites. For example, a police department may be allowed to use only Site 1, and a public works department may be allowed to use only Site 2. 3. The next time TG1 is selected, the following procedure is performed before performing the normal hunt methods previously described.
MISCELLANEOUS SECTION 7 MISCELLANEOUS 7.1 SUPERVISORY TONES • Single Beep (Alert Tone) • • • • • • Power was turned on and a successful power-up sequence occurred (Section 3.1). The time-out timer is about to expire or the penalty timer has expired (Section 4.3). The conversation timer is about to expire (Section 5.7). The system received your page but the paged radio is not on the air (Section 6.7). Telephone interconnect is not operational (Section 6.6).
MISCELLANEOUS 7.2 ERROR MESSAGES channel grant before the busy time-out timer has expired The following are definitions of the various error messages that may be displayed. Disabled - The selected channel is disabled. Aff Failed - A group affiliation attempt has received a FAILED response from the system. The precise reason for a FAILED response is manufacturer dependent. Clear Only - The selected channel or group is strapped clear only and that a secure call can not be made.
MISCELLANEOUS No Service - OTAR service is not available. Invald Key - The key pressed by the user was not valid for the current situation. No Site - No site with a verified ID is yet on the dynamic site list. Invld Ch - The channel entered by the user in keypad programming is not valid. No Keys - No keys are available for the key select function. Key Fail - The encryption key required by the current selected group/channel is not valid.
MISCELLANEOUS 7.7 RADIO SERVICE when the radio was set up, not to any programming a user can perform. If a feature is controlled by a front panel option switch and that switch is not available, it is probably not available. If the radio is not responding to any key presses, the keypad may be locked. Refer to Section 3.6 for more information. If the Keypad Programming option switch is available, you can reprogram some conventional channel parameters. Refer to Section 5.18 for more information.
DETERMINING AVAILABLE OPTIONS SECTION 8 DETERMINING AVAILABLE OPTIONS • • 8.1 GENERAL This manual describes the operation of all features that are currently available for the 41xx radio. However, many of these features are optional and therefore may not be available in your radio. For example, Project 25 trunked operation is optional and may not be available. [1] 4100 radios require that this option be enabled to roam across zone controller boundaries.
DETERMINING AVAILABLE OPTIONS Examples SMARTNET Analog and Digital Operation with Encryption The following are examples of items that need to be checked to program various optional features: P25 Options - Digital SMARTNET/SmartZone Encryption Options - DES Securenet and DESOFB Trunking Options - SMARTNET Trunking P25 Conventional Operation with DES Encryption and OTAR P25 Options - Digital Conventional, Conventional Radio Data Encryption Options - P25 DES OFB OTAR Options - Conventional NOTE: The “Fea
PASSWORD DESCRIPTION SECTION 9 PASSWORD DESCRIPTION 9.1 NEW PASSWORD ENHANCEMENTS following). If even the Master password is lost or was not used, all passwords can be erased using the PCTune software as follows: 9.1.1 INTRODUCTION 1. With PCTune 1.1.1.0 or later, simply select Radio > Reset Passwords. Only password information is erased. A new enhanced password feature is now available for 4100 portables and 4300 mobiles.
PASSWORD DESCRIPTION 9.3 PASSWORD DESCRIPTION the other passwords. It does not override the following Zone Password. 9.3.1 USER (POWER-ON) PASSWORDS 9.4 ZONE PASSWORD When a User Password is enabled, it must be entered each time radio power is turned on. Up to four different User Passwords (User 1/User 2/User 3/ User 4) can be programmed. Currently, the same radio features are enabled for each. Entering any User Password at power up enables normal radio operation.
SECURE COMMUNICATION (ENCRYPTION) SECTION 10 SECURE COMMUNICATION (ENCRYPTION) • 10.1 GENERAL 10.1.1 INTRODUCTION This radio may be equipped to provide secure communication on some or all channels. This feature encrypts the voice so that it can be understood only by someone using a radio equipped with a similar encryption device and encryption codes. DES-OFB - A form of DES encryption for digital channels that uses output feedback.
SECURE COMMUNICATION (ENCRYPTION) Crypto Group A Keyset A1 Keyset A2 Keyset ID 1 Zone 1, Chan 2 PID 1 Zone 2, Chan 4 2 3 Zone 2, Chan 5 Zone 3, Chan 1 Zone 3, Chan 2 4 5 Keyset ID 2 Algorithm ID Algorithm ID Update Item (Opt) Update Item (Opt) Storage Loc.
SECURE COMMUNICATION (ENCRYPTION) When multiple encryption keys are programmed (see preceding information), the Key Select option switch can be programmed to allow selection of another key for the current channel. This feature changes the PID (hardware location) of the key, and the change is permanent (cycling power or selecting a different channel does not reselect the original key). Therefore, to switch back to the original key, it must be manually reselected.
SECURE COMMUNICATION (ENCRYPTION) No Autodetect - Only signals coded like the transmit signals are received. Clear - All calls are in the clear mode unless responding to a secure call. If the response is then made within the delay time (see Section 4.8.4), it occurs in the secure mode. Secure Autodetect - Both clear and secure signals are automatically detected. This mode is automatically selected if the transmit mode is switch selectable. Secure - All calls are made in the selected secure mode.
SECURE COMMUNICATION (ENCRYPTION) 2. With EFJohnson radios, each keyset can contain up to 128 keys, but less than 16 are normally used for optimum keying efficiency and because only up to 16 can be selected by the radio. necessary. It is no longer necessary to periodically travel to the radio location or bring the radio into a maintenance facility to load new keys. The actual OTAR rekeying functions are performed by a Key Management Facility (KMF) that sends Key Management Messages (KMM) to the radios.
SECURE COMMUNICATION (ENCRYPTION) Section 10.5.2. This parameter is used to minimize the possibility of someone sending messages to “spoof” the system. The MNP is used as follows. radios within the radio system. One of the main tasks of the KMF is to maintain a data base of information Crypto Group ID (4-Bit = 0-15/0-F) Every message sent out has a message number. The message number increments by one with each message sent. The MNP is the maximum difference allowed between messages.
SECURE COMMUNICATION (ENCRYPTION) Key ID - This is a 16-bit (four hex digit) number identifier from 1-65535 for an encryption key which allows the key to be identified without revealing the actual key variable. This ID and the Algorithm ID uniquely identify a key within the KMF or subscriber unit. Therefore, two keys can have the same ID if they have different algorithm IDs and vice versa.
SECURE COMMUNICATION (ENCRYPTION) Message Number Period (MNP) - The maximum difference between message numbers that can occur before a message is declared invalid (see Section 10.4.6). Zeroize - The process of deleting all keys from a compromised subscriber unit to disable it. To make the unit functional again, the keys must be reloaded by a keyloader. Over-The-Air-Rekeying (OTAR) - The process of sending new encryption keys over the air using an RF interface. 10.
SECURE COMMUNICATION (ENCRYPTION) Programming By Keyloader Currently, EFJohnson 41xx portables and 43xx mobiles that meet the following requirements support OTAR: The following are the minimum parameters that need to be programmed in the radio to perform OTAR. It is not necessary to program a TEK to perform OTAR. If the radio does not contain a TEK, the KMF initiates a warm start-up sequence in which a temporary TEK is transferred to the radio to perform the key transfer.
SECURE COMMUNICATION (ENCRYPTION) • • TEKs and only one is active at a time. Keyset ID 255 is for KEKs and is considered active all the time same as described in Section 10.5. Each keyset can have up to 128 keys. However, 16 or less are normally used. 10.6.3 OTAR OPTION SWITCHES The following additional option switches can be programmed with the 4100 portable and 4300 mobile to control OTAR functions. They are also available as 4100 menu parameters unless noted otherwise.
SECURE COMMUNICATION (ENCRYPTION) Need KEK - Sends a request for a new KEK (Key Encryption Key). Upon receiving this message, the KMF marks the radio as requiring service. One time this function may be selected is if the radio dumps it keys. Rekey Fail - Either the rekey command failed or timed out (after approximately 30 seconds). This message could indicate that the rekey request message was not received by the KMF.
INDEX INDEX A Accessory Connector 12 AES Encryption 61 Alert Tones 22 Algorithm 66 Algorithm ID 66 Analog and Digital Operation 42 ANI Signaling 33 Antenna Connector 11 Autodetect 64 B Backlight 16 Battery 12 Battery Charging 16 Battery Saver Feature 16 Black 66 Busy Indicator 27 Busy Override 50 C Call Alert 46 Call Alert (P25 Conv) 37 Call Guard Squelch 28 Channel Select 14 Channel Switch 11 Channels 18 CKEK 66 CKR 67 Clear/Secure Strapping 63 Clone Feature 34 Conventional Mode 17 Conversation Timer 2
INDEX High/Low Power 22 Home 22 Key Select 63, 70 Keypad Lock 16 Keypad Programming 39 Message 38, 47 Monitor Mode 27 Normal/Selective 28 OTAR Rekey Request 70 P25 Packet Data 38 Phone 37, 45 Priority Select 33 Private Call 43, 44, 45 Private Call (SmartNet) 43, 44, 46 Radio Wide Scan 23 Repeater Talk-Around 30 RWS List Edit 26 Scan 23 Scan List Edit 25 Scan List Select 25 Selective Squelch 29 Set User Password 14, 59 Single Tone Encoder 33 Site Lock 51 Site Search 51 Squelch Select List 29 Status 38, 47 S
Part Number 002-4100-xxx x 12-04 Printed in U.S.A.
