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3.1 System Components ........................................................................................ 163
3.1.1 Fixed End Components........................................................................... 163
3.1.1.1 Repeater ........................................................................................ 163
3.1.1.2 MTR3000 Base Station/Repeater.................................................. 165
3.1.1.3 MTR3000 Satellite Receiver .......................................................... 168
3.1.1.4 Satellite Receiver and Voting Repeater......................................... 170
3.1.1.5 Radio Control Station..................................................................... 171
3.1.1.6 MOTOTRBO Network Interface Service (MNIS) ........................... 171
3.1.1.7 MC1000, MC2000, MC2500 Console............................................ 173
3.1.2 Mobile Components ................................................................................ 174
3.1.2.1 MOTOTRBO Portable.................................................................... 175
3.1.2.2 MOTOTRBO Mobile ...................................................................... 180
3.1.2.3 MOTOTRBO Device Discovery and Mobility Service (DDMS) ...... 185
3.2 System Topologies........................................................................................... 185
3.2.1 Direct Mode/Dual Capacity Direct Mode (DCDM)................................... 186
3.2.1.1 Digital MOTOTRBO Radios in Direct Mode/Dual Capacity
Direct Mode........................................................................................ 186
3.2.1.2 Interoperability between Analog MOTOTRBO Radios and Analog
Radios in Direct Mode........................................................................ 196
3.2.1.3 Interoperability between Digital MOTOTRBO Radios, Mixed Mode
MOTOTRBO Radios, and Analog Radios in Direct Mode.................. 197
3.2.1.4 Direct Mode Spectrum Efficiency................................................... 197
3.2.2 Dual Capacity Direct Mode ..................................................................... 198
3.2.2.1 General Information ....................................................................... 198
3.2.2.2 Timeslot Synchronization............................................................... 198
3.2.2.3 Channel Timing Leader (CTL) Preference..................................... 198
3.2.2.4 Color Code..................................................................................... 199
3.2.2.5 Channel Access Rule .................................................................... 199
3.2.2.6 Scan............................................................................................... 199
3.2.2.7 Interoperability and Backward Compatibility.................................. 199
3.2.2.8 Revert Features ............................................................................. 200
3.2.3 Repeater Mode ....................................................................................... 200
3.2.3.1 Digital MOTOTRBO Radios in Repeater Mode ............................. 201
3.2.3.2 Analog MOTOTRBO Radios in Repeater Mode ............................ 218
3.2.4 IP Site Connect Mode ............................................................................. 219
3.2.4.1 Topologies of IP Site Connect System .......................................... 220
3.2.5 Capacity Plus Mode ................................................................................ 231
3.2.5.1 Topologies of Capacity Plus System ............................................. 231
3.2.6 Linked Capacity Plus (LCP) Mode .......................................................... 237
3.2.6.1 Topologies of Linked Capacity Plus System.................................. 239
3.2.7 Digital Voting ........................................................................................... 243