Copyrights............................3 List of Figures..........................9 List of Tables..........................11 Icon Conventions........................... 13 Chapter 1: Product Overview................15 MTP850 S Overview............................15 Specification............................16 Ordering Options for Radios and Features......................17 Dongle Enablement – Software Enablement Kits....................17 Ordering a Software Enablement Kit........................18 Radio Ordering..............................
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Contents | 7 Radio Disable/Enable..........................47 Radio Permanent Disable........................47 Radio Permanent Disable v2........................48 High Assurance Boot..........................48 Packet Data................................48 Voice and Data Support.......................... 49 Packet Data IP Addressing........................50 PD User Authentication...........................51 TETRA Network Protocol 1..........................51 TNP1 IP Addressing..........................52 Mobility Services..............................
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8 | Contents Radio User Assignment and Radio User Identity....................73 RUA/RUI Log On ..........................73 RUA/RUI Radio Behavior........................74 RUA/RUI Interactions..........................74 Chapter 3: Man-Machine Interface..............75 Controls, Indicators and Related Features......................75 LED Indications............................75 Controls and Indicators........................... 76 Keypad Lock............................78 Automatic Keypad Lock.........................
List of Figures | 9 List of Figures Figure 1: MTP850 S ............................... 15 Figure 2: Trunked Mode Operation ..........................19 Figure 3: Direct Mode Operation ........................... 20 Figure 4: Talkgroup Tree ............................... 23 Figure 5: SDS End-to-End Encryption ...........................40 Figure 6: Voice and Data End to End Encryption ......................46 Figure 7: Repeater Mode Operation ..........................63...
Table 21: Service Information — Telephone Numbers to EIA Integrated Call Center ..........95 Table 22: Service Information – Telephone Numbers and Addresses of the Asia and Pacific Motorola Centers ..97 Table 23: Service Information – Telephone Numbers and Addresses of Latin America Radio Support Centers ..101...
There is no warning level associated with a note. Suggestion: SUGGESTION indicates a recommendation or tip from Motorola that does not require to be followed, but might be helpful. There is no warning level associated with SUGGESTION.
Product Overview MTP850 S Overview The MTP850 S is Motorola TETRA portable radio for mission critical communications. Incorporating all features of the MTP850, this radio includes an advanced Man Down sensor for exceptional user safety together with a new side connector for increased ruggedness.
16 | Product Overview • Silent emergency, hitting the emergency button alerts colleagues to critical situations but sends and updates your location, without showing any indication on the radio screen. • Rugged side connector. This new side connector with the range of available accessories ensures that connection is maintained even in the most violent of situations.
5 meters - 50% probable 10 meters - 95% probable Protocols ETSI LIP & Motorola LRRP Note: This specification may be subject to change without further notice. All product features are subject to infrastructure support. Selected features are subject to optional software upgrade.
18 | Product Overview The features are enabled at the same time the customer programs the radio. The enablement for all the selected features is performed in one operation. Ordering a Software Enablement Kit Procedure: 1 Order the standard software enablement kit (main kit) – GM0127. 2 Add software feature options.
19 | Services and Features Chapter Services and Features System Support The radio operates on the Dimetra IP 5.x, 6.x, 7.x and 8.x releases and Dimetra IP Compact. It also operates on previous versions of Dimetra — from Release 3.8 and on. The radio is designed to operate optimally on the Dimetra IP system.
20 | Services and Features Direct Mode Operation Direct Mode Operation is a mode of simplex operation where radios communicate directly. Figure 3: Direct Mode Operation Numbering and Addressing Each radio has a TETRA ITSI used for addressing the radio over the air interface. However, it is undesirable to require you to enter a long number to address another radio.
Services and Features | 21 Dialing Methods The radio supports multiple methods for selecting a number for an outgoing call. The direct dialing method provides the radio user with an option to dial a number before entering the mode (modeless operation for all types of calls).
22 | Services and Features Each individual can have up to six associated numbers: • Private (a TETRA ISSI) • Home (phone number) • Mobile (phone number) • Work (phone number) • PABX (local short number) • Other (phone number) The Contact List has a maximum capacity of 2000 Contacts, with up to 1000 associated Private and up to 1000 associated either Phone or PABX numbers distributed among the contacts.
Services and Features | 23 case a corresponding talkgroup is automatically selected during mode switching, irregardless of the previously selected talkgroup. Note: Neither the group name nor the corresponding group address can be edited using the radio MMI. Talkgroup Folders The talkgroups are organized in folders.
24 | Services and Features Talkgroup scrolling can be provisioned to scroll in a folder only, or continuously through the folders acting as one continuous list of groups. The radio does not allow directly dialing a group SSI. Favorite Folders You can add frequently used talkgroups and phone book contacts to the Favorite folder.
Services and Features | 25 Talkgroup Scanning Talkgroup scanning allows the radio to monitor signaling of a number of talkgroups at the same time. In addition to monitoring signaling addressed to the selected talkgroup, the radio can monitor signaling addressed to multiple talkgroups.
26 | Services and Features When you select an ATG as the selected group, the radio monitors traffic received for the announcement group as well as the traffic received for any of the associated subgroups. However, the radio does not monitor the active scan list groups when an announcement group is selected.
Services and Features | 27 building A hear the voice communication on the Internal Alarm Talkgroup. It turns out that the emergency is serious and one of the building administrators starts the global alarm for all campus buildings. Broadcast Call This kind of call enables dispatcher to transmit to all radios in the specific area.
28 | Services and Features Talking Party Identification The PDUs and facility elements for these TETRA Supplementary Services are not supported. However, identification presentation functionality is supported in most cases using the information found in the call setup messages. Call Ownership The radio can be given the call ownership of a talkgroup call.
Services and Features | 29 All group attachments sent by the radio are sent with attachment mode of Amendment or Detach all... depending on which form causes sending less bits over the air interface. When you turn on scanning and then select the scan list, the radio sends a group attachment request to attach the scan groups in addition to the selected group.
30 | Services and Features All private calls are initiated using the on-off hook method. For incoming calls, the radio accepts both direct and on- off hook setup. Duplex Private Call The radio allows making and receiving private calls to and from other TETRA radios with duplex speech capability. Depending on the configuration, the radio may prohibit you from initiating duplex private calls.
Services and Features | 31 Assistance Call can be a simplex or duplex call depending upon your service provider settings. An Assistance Call is full-duplex when you start the call using radio menu. When you type the number and press PTT, then your radio starts a half-duplex call, but if you type the number and press SEND, then the call is duplex.
32 | Services and Features Phone Call Reception Incoming phone calls (land gateway to mobile) use on-off hook signaling. The radio extracts the gateway ID from the call setup signaling, to determine whether to start phone or PABX call. That means you need to answer the call e.g. by pressing the SEND button.
Services and Features | 33 Non-Tactical Emergency In Non-Tactical Emergency, the radio switches to a designated Emergency talkgroup when starting Emergency Operations. This talkgroup is used for the complete duration of the Emergency Operations (you cannot change the talkgroup). In TMO, it is possible to configure the radio to make Emergency Non-Tactical Group Calls without sending attachment.
34 | Services and Features If this feature is enabled, you can initiate the Alternating Hot Microphone by pressing the button. EMERGENCY The Alternating Hot Microphone terminates when one of the following conditions is met: • The radio exits the Emergency Mode. •...
Services and Features | 35 Disaster Alert Disaster Alert call is a broadcast emergency call initiated by the radio, with emergency pre-emptive priority that everyone in a broadcast area can hear. This feature is specifically designed for catastrophic situations, such as earthquakes, and has the highest priority over other calls.
36 | Services and Features Status Messages You can select from a list of up to 400 pre-programmed alphanumeric aliases each of which corresponds to a status value. The valid range of uplink status values is a set of provisioned parameters. If the radio is not enabled with targeted status, the status value is sent over the air interface to the address of the selected group.
Services and Features | 37 • Store – used to save the message as a template. • Delete – used to remove the message from the list. • Delete All – used to remove all the messages from the list. •...
38 | Services and Features The radio can reconstruct a long text message consisting of up to ten short messages. The maximum length of the message is 141-1000, what can be defined in the codeplug. The radio recombines the text segments independently of the order they have been received to the correct order of the original message.
Services and Features | 39 The radio supports SwMIs that employ store and forward service as indicated in the cell broadcast information. The radio supports use of a service center, which address is set in the radio. The store and forward operation is supported. However, the radio notifies you only on successful sending of the message.
40 | Services and Features In air interface encryption, the receiving base station decrypts data which travels clear within the system domain. For E2EE, the transmitting radio encrypts the data and the receiving radio or an E2E terminator located in the infrastructure decrypts the data.
Services and Features | 41 If no cryptogroup associations exist, this means that the keys are not loaded. In such situation, the radio discards any outgoing or incoming message that is encrypted. You are alerted when this situation occurs. This feature can only be disabled using the KVL. Store and Forward This feature allows communicating with each other without being available at the same time.
42 | Services and Features Authentication Authentication establishes a level of a trust between a radio and SwMI. It is a challenge-response result protocol between two parties based on their common knowledge of a secret key (K) to verify each others identity. The SwMI authentication centre (AuC) provides a single K for authentication, which is shared only with the radio.
Services and Features | 43 Static Cipher Key Encryption (Class 2) The radio supports static AIE using a set of up to 32 static cipher keys (SCK) shared by the SwMI and all authorized radios. The radio then determines which static keys to use based on the SCK Number (SCKN) and SCK version number (SCK-VN) broadcast by the SwMI.
44 | Services and Features • Group OTAR of fallback TM-SCK. • Group OTAR of DM-SCK, including management of the cryptographic schedule of DM-SCKs. The group OTAR mechanisms require a use of the group session key for OTAR (GSKO). The GSKO is delivered to the radio only by using individual OTAR and the session key for OTAR (KSO).
Services and Features | 45 A Class 2 or Class 3 radio moves to a cell that supports an SCK/CCK/GCK that the radio possesses, applies AIE to the registration PDU. If no acknowledgment is received, the radio sends the registration in clear. Encryption MMI A Class 2 or Class 3 radio that is involved in a clear call provides a visual and an audible indication informing that the call is not encrypted (if enabled by the service provider).
46 | Services and Features End-to-End Encryption The TETRA standard supports air encryption. The radio creates the PDU (Protocol Data Unit) and the PDU is encrypted before transmission. The base station receives this PDU and must decrypt it, to know what to do with it and where to send it.
Services and Features | 47 • SIM interface encryption and authentication using the AES. The file system holds the following. • Network access parameters as ITSI. • Security class definition and authentication definition. • Integrated circuit card identifier. • SIM version number. •...
Note: When a radio has been disabled using the permanent disable v2, entering programming mode procedure is different. For the details, see TETRA Terminals CPS Start-up User Guide (Motorola Part Number: 6802974C10).
Services and Features | 49 The radio supports only IP version 4 packets. The radio routes datagrams independently of the protocol sitting on top of IP. The radio supports an MTU of 1500 bytes. The radio provides the best effort delivery service. However, if the delivery fails, the originating user application is informed by sending back to Terminal Equipment an ICMP message, if possible.
50 | Services and Features Voice-Data Interaction Mode Description Voice and Data Mode In Voice and Data mode any voice call activity that oc- curs during a data session takes priority over the packet data. Once a voice call has interrupted the data session, the PD session is suspended, until the voice activity has ended.
Services and Features | 51 PD User Authentication The PD user authentication is a method of authenticating the Terminal Equipment user before allowing the packet data link activation. A PD Authentication server connected to the SwMI performs the actual authentication. The terminal only sends the messages between the Terminal Equipment and the SwMI.
52 | Services and Features TNP1 IP Addressing Table 8: TNP1 IP Addressing Addressing Mode Description Wide Mode All TNP1 services are available including packet data transfer towards the SwMI. The address used is the dy- namic address MS IP or configured statically. Local Mode All TNP1 services are available except packet data trans- fer.
Services and Features | 53 In addition to the MCCH, a cell can have up to three common SCCHs, which could occupy slots 2, 3 and 4 in the main carrier. This solution provides the ability to distribute the radio population among up to four channels and so to increase Control Channel capacity (at the expense of traffic channel capacity).
54 | Services and Features If the SwMI denies the registration request due to the location area rejection, the radio does not attempt to register again at this cell until the next power-on. The radio supports the modification of its subscriber class on receipt of a new subscriber class from the SwMI in the registration acknowledgment PDU.
Services and Features | 55 During network reconfiguration, a significant number of radios registered on one cell may roam. This roaming can cause major congestion on specific cells. In order to avoid the congestion on control channels for the specific cells, the specified radios roaming should be distributed in time.
56 | Services and Features When DAIM feature is enabled the user has these selectable options: Migrate to In this mode the radio user selects the network manually. Once network is selected terminal performs migration as to the foreign SwMI. If you change talkgroup to the one from a different network, radio automatically migrates to this network.
Services and Features | 57 • Preserving traffic channel capacity. For two cells having the same coverage and placed together to multiply traffic capacity a number of radios is attached to Talkgroup 1 on the first cell and only one radio is attached to Talkgroup 1 on the second cell.
58 | Services and Features • Packet data • SDS data Depending on the codeplug configuration, the radio may indicate entering the LST with the following notifications: • Visible and audible • Visible • Audible • None To avoid unnecessary roaming and reduce congestion, Local Site Trunking Ignoring feature can be enabled. When Local Site Trunking Ignoring feature is enabled, the radio will temporarily ignore the LST/WST parameter when selecting a site.
Services and Features | 59 In all the cases, the talkgroup is removed from all the scan lists as no matter if they are active or inactive. If the de-assignment is for the selected group, depending on the service provider settings, the radio; •...
60 | Services and Features fails. If you attempt to power down the radio in the active Ambience Listening call, the radio enters Pseudo Power- Off state. Pseudo Power-Off If you attempt to power down the radio in the active Ambience Listening call, the radio appears to turn off. However, it remains fully operational from Layer–3 and below.
Services and Features | 61 Note: RF Transmissions from the radio are prevented under the following conditions: • TXI Mode is activated. • Battery is removed. • The radio is turned off. On entering or exiting the transmit inhibit mode, when the radio is camped on a cell, it sends a specially designated SDS status message.
62 | Services and Features • You have manually updated the time. Also, as the internal clock is not maintained after a power loss event, the time is not displayed until either these events occur. The feature is enabled or disabled and the default configuration can be set for the radio using the CPS or MMI. The radio display supports the following: •...
Services and Features | 63 Repeater Mode The Repeater Mode provides repeater connectivity between radios operating in the DMO Mode. Note: Only the radios on the same talkgroup can communicate with each other through the repeater. Figure 7: Repeater Mode Operation A DMO repeater is used to extend the DMO range by retransmitting received information from one radio to another.
64 | Services and Features Radio to radio only The radio initiates calls only on a talkgroup directly and not through a gateway or repeater. Specific gateway The radio can initiate calls on a talkgroup directly or through a specific gateway address that is specified for a talkgroup.
Services and Features | 65 Communication through Gateways Gateway provides connectivity between radios operating in DMO Mode and the TETRA network, so that the DMO radios can communicate with the TMO radios. When the radio connects to a gateway, it plays a tone, displays the Gateway available message and shows an appropriate icon.
66 | Services and Features A controlled radio receives over the air control information using SDS type 4 with TL on the specific PID number defined in the codeplug. If the received control message is originated from one of ISSIs present on the radio authorized ISSI list, the radio executes received command and sends a response.
Services and Features | 67 the old call-out (even if it has not been responded). An ongoing call-out overrides the old one in any phase of the call- out alert. In normal mode, you can browse the CO Box and read all the call-out messages. In the call-out mode, you can only read the ongoing call-out messages.
68 | Services and Features Figure 9: Radio Messaging System Flow Model S w M I C o n tro l Room RMS PI (SDS-TL) RMS PI (SDS-TL) RMS PI (SDS-TL) Radio RMS Status RMS Free Text A Short Data Router (SDR) provides TETRA short data services between host applications connected to Dimetra Mobile Stations or between a host application connected to a Dimetra Mobile Station and a host application connected through the Dimetra Master Site.
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If the Location Reports are sent via SDS with User Defined Data Type-4 as a transport layer, either the ETSI Location Information Protocol (LIP) or Motorola Location Request/Response Protocol (LRRP) GPS Location Protocol is used. The LRRP GPS protocol either use SDS-TL (for added reliability) or Simple GPS with no SDS-TL (for saving air interface resources).
70 | Services and Features Table 9: GPS Triggers Trigger Type Trigger Event Power-up Radio powers up in TMO. Power-down Radio powers down in TMO. Emergency condi- Radio enters emergency operations. tion Periodic Given time interval after the last location report expires. Moved Radio position has changed by at least the distance defined (the radio checks the movement from the last known position at an interval).
Services and Features | 71 Note: An example of an MGRS coordinate would be 19TDJ3858897366, which consists of: • 19 is the UTM Zone Number • T is the corresponding UTM latitude band letter • DJ is the MGRS Grid Reference used to define the 100 km square within the UTM/UPS block. The columns A-Z (excluding "I"...
72 | Services and Features Wireless Application Protocol (WAP) is a standard for application layer network communications in a wireless communication environment such as TETRA network. The protocol is used to access the mobile web from a radio through a WAP browser. Note: This is a selling feature.
Services and Features | 73 The SI can be valid only for a certain amount of time. After the specified time elapses the SI indicates void content. The author of an SI can set the expiration date and time, that is, when the SI is automatically deleted from a radio. The service provider can remotely delete SIs that became invalid.
74 | Services and Features RUA/RUI Radio Behavior When the radio is logged off and receives RUA accept from the infrastructure without sending logon information, it indicates book on with assigned logon period timer. The radio sends automatically book on response according to the terminal settings: Book on Reject —...
75 | Man-Machine Interface Chapter Man-Machine Interface Controls, Indicators and Related Features LED Indications Table 11: LED Indications Indication Status Solid green In use Repeating call Battery fully charged Blinking green In service/idle Solid red Out of service, switching between modes e.g. DMO to TMO Rapid charge Trickle charge Blinking red...
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Man-Machine Interface | 77 Annotation Description Press and hold E button to enter Emergency operation. When your radio is off, MERGENCY press and hold to power on in Emergency Mode. OTARY • Rotate to set the volume. • Press and rotate to select a different talkgroup. •...
78 | Man-Machine Interface Annotation Description Provides connection for accessories and cable for data transfer. NTENNA ICROPHONE Activated during Simplex, high audio calls such as Group Calls. XTERNAL NTENNA ONNECTOR Used with the digital car kit to connect the RF signal to the external antenna. ISPLAY Provides alphanumeric text and images within 65,536 colors and 130 x 130 pixels with backlight, scalable fonts, and contrast.
Man-Machine Interface | 79 When the keypad is locked one of the following is displayed: • Nothing — no notification is displayed. • Notification Only — Keys Locked is displayed. • Notification and Instruction — Press Menu and * to unlock is displayed. The displayed option can be set in the codeplug.
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80 | Man-Machine Interface Feature Description Man Down On/Off Turns on/off the Man Down feature. PABX Call Initiates a PABX call to a predefined entry in the contact list. Phone Call Initiates a phone call to a predefined entry in the contact list. Previous Talkgroup Changes the selected talkgroup of the radio to the talkgroup (DMO or TMO) that was selected previously.
Man-Machine Interface | 81 Display This section presents the radio's default home screen elements. Table 14: Display Annotation Description Status icon area Text display area key area /Context sensitive icon The color of the S key area changes according to the mode the radio is in. Table 15: Colors of the S Key Area Color...
82 | Man-Machine Interface Table 16: Status Icons Icon Description Trunked Mode Operation In Service No Service Signal Strength – The more bars, the stronger the signal. RF Power — Indicates the High RF Power is enabled. Shows the signal strength. The more bars, the stronger the signal.
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Man-Machine Interface | 83 Icon Description • No icon — during a radio to radio and gateway call. General Icons All Tones Off and Duplex and Simplex Ring Muted — Indicates that all alert tones are off and both duplex an simplex ring volume is set to 0. •...
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84 | Man-Machine Interface Icon Description Emergency — Appears while the radio is in Emergency Operation. Disaster Alert Call — Appears while the radio is in the Disaster Alert Call. List Scrolling — Displayed to indicate that the R is in list scrolling mode. OTARY New Message Has Arrived —...
Man-Machine Interface | 85 Icon Description In High Security mode, when your radio processes only the encrypted information, this icon is always visible in when you are in the messages menu (for example, Inbox). Unread (New) WAP Message — Indicates that you have not entered WAP Box since last WAP message was received (Blinks when the priority is high).
86 | Man-Machine Interface + Line 1: Network status or network identification (No Service or MCC/MNC or MCC/ MNC alias). + Line 2: Selected Group Folder. + Line 3: Selected Group. + Lines 4, 5: Home Mode Display Text (if available). + Line 5: Time and Date (if available).
When the screen saver is being displayed, any key input or incoming service causes the screen saver to deactivate. Languages Supported Table 17: Languages Supported Language MTP850 S English Arabic Chinese (simplified) Chinese (traditional)
88 | Man-Machine Interface Tones Table 18: Radio Tones Tone Name Default Tone Diagram [Hz] 2400 2100 Back to Coverage 1800 1000 Back to Full Service [ms] [Hz] 2400 2100 1800 1000 Clear-to-send [ms] [Hz] 2400 2100 1800 1000 Bad Key Pressed [ms] [Hz] 2400...
Audio Device Descriptor (ADD) is a set of parameters in the radio, which defines the audio setting (e.g. gains and filters settings) for each accessory. For Motorola accessories, the ADDs are predefined and cannot be changed by the user. For 3rd party accessories, the ADD parameters are configurable via CPS (Audio Settings -> 3rd Party Accessory Device Parameter) –...
One audio profile is enabled by default but up to ten audio profiles can be enabled, the names of which are configurable by CPS. The audio profiles are based on templates, which are provided by Motorola and are also managed by the CPS. Several audio profiles can be created, based on the same template.
92 | Man-Machine Interface Template Name Outdoor, Street use This audio template should be chosen when the radio is used in a noisy street environment where the ambient sound pressure level is around 85 dBSPL(C). Example: Traffic noise environment Extended Gen Use 1 This audio template is similar to the General purpose template, but the extended TX AGC (from -15dB to +8 dB) is used instead of the normal TX AGC ( from -7 dB...
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Man-Machine Interface | 93 • Ver Info – Version Information – displays software/hardware version information. Build Date – software build (a compiled version of software) CP Ver – CodePlug version DSP Ver – Signalling Processor Software version Host Ver – Application Software version HardwareID –...
TEI – the TEI is displayed as a hexadecimal number. • Serial number – Motorola serial number is displayed only on radios distributed under Motorola trademark. • OPTA – if the BSI SIM support is disabled, no OPTA information is displayed.
Customer Information Desk and obtain a Return Material Authorization number. Unless advised otherwise, the equipment should then be shipped to the following address: Motorola GmbH, European Systems Component Center, Am Borsigturm 130, 13507 Berlin, Germany E-mail: escc.admin@motorolasolutions.com. Telephone: +49 30 66 86 1404 Mon –...
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Latest Versions of Manuals To download the latest versions of technical manuals, see http://emeaonline.motorolasolutions.com. Submit Your Comments If you have any comments or would like to report a problem regarding Motorola publications, send an e-mail to: escc.admin@motorolasolutions.com. Send Feedback | | 68015000878-G...
Motorola Service Center as listed in the following table: Table 22: Service Information – Telephone Numbers and Addresses of the Asia and Pacific...
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3220 Sukhumvit Road, Klongtoey, Bangkok 10110 Contact: Nitas Vatanasupapon E-mail: Nitas@motorolasolutions.com India +91-9844218850 Motorola Solutions India Pvt. Ltd. C/o Communication Test Design India Private Limited, #4, 5 Maruthi Industrial Estate, Rajapalya, Hoodi Village, Bangalore - 560048, India Contact: K. Umamaheswari E-mail: umamaheshwari@motorolasolutions.com...
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Motorola Radio Aftermarket and Accessory Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If a list of parts is not included, that means that no user-serviceable parts are available for that kit or assembly.
Some replacement parts, spare parts, and/or product information can be ordered directly. If a complete Motorola part number is assigned to the part, it is available from Motorola. If no part number is assigned, the part is not normally available from Motorola. If the part number is appended with an asterisk, the part is serviceable by Motorola Depot only.
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Lima 27 954-723-8959 MOTOROLA SOLUTIONS, INC. Latin American Countries Region 789 International Parkway Sunrise, FL 33325 Venezuela 58212-901-4600 MOTOROLA DE LOS ANDES C.A. Ave. Francisco de Miranda Centro Lido, Torre A Piso 15, El Rosal Send Feedback | | 68015000878-G...
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Service Information – Americas | 103 Country Telephone Number Address Caracas, 1060 68015000878-G | | Send Feedback...
105 | Glossary Glossary Audio Device Descriptors Air Interface Encryption Air Interface Encryption (AIE) Provides confidentiality on the radio link over the air. See also: Encryption Announced Cell Reselection Cell reselection where radio Mobile Link Entity (MLE) informs the Switching and Management Infrastructure (SwMI) both in the serving cell and in the new cell that cell change is performed.
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106 | Glossary See also: Encryption DGNA Dynamic Group Number Assignment Direct Mode Operation (DMO) Direct communications between two or more radios without the use of any infrastructure. Direct Mode Operation Data Radio Equipment DTMF Dual Tone Multi-Frequency Dual Tone Multi-Frequency (DTMF) Tone-based signaling scheme which combines two of a set of standard frequencies.
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Location Request/Response Protocol Local Site Trunking MACE Motorola Advanced Crypto Engine Main Control Channel (MCCH) The main control channel at a site. The channel is used by radios to register on the system and to request and setup speech calls with other radios.
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108 | Glossary Man Machine Interface (MMI) Relates to the CPS Plus and radios user interface. MCCH Main Control Channel Mobile Link Entity See also: Announced Cell Reselection Man Machine Interface Mobile Country Code The MCC and MNC together form a unique TETRA system identifier that is broadcast by a Dimetra system over the air interface.
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Glossary | 109 PSTN Public Switched Telephone Network PSTN Gateway A device that provides connectivity from a TETRA user to a PSTN subscriber and the other way around. Additionally, for the duration of the call, the PSTN gateway allows TETRA signaling information to be passed from TETRA Switching and Management Infrastructure to the external network user and from the external network user to the TETRA SwMI in accordance with the TETRA Call Control (CC) procedures.
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110 | Glossary Semi-Duplex Private Call Also called Private Call or Express Connect Call. In this type of one-way call, the user presses and holds the PTT while talking, and releases the PTT while listening. See also: Private Call Push-to-Talk Sensitive Data A set of important and unique, factory-defined values (such as frequency tuning) assigned to radios.
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Glossary | 111 Trunked Mode Operation Trunked Trunked Radio Communications Trunked Radio Communications (Trunked) A computer controlled communications system that allocates speech channels on demand selecting on a random basis from the group of channels available. Upgrade To replace radio firmware with a newer version and preserve User and Sensitive Data. User Data A set of codeplug nodes and values, that can be edited and replicated to other codeplugs or radios.