7.1.1 Change, Tx/Rx, Service, CUSTOM Menu ......................................................................135
7.1.2 Change, Tx/Rx, Service, CUSTOM, IBS Menu ..............................................................135
7.1.3 Change, Tx/Rx, Service, CUSTOM, IDR Menu ..............................................................137
7.2 IBS/SMS OPERATION WITH 2048KBPS CONTINUOUS DATA ................................................ 139
7.2.1 Change, Tx/Rx, Baseband, Continuous, 2048k G.732 Menu (IBS)...............................139
7.3 CUSTOM IDR OPERATION WITH 2048KBPS CONTINUOUS DATA........................................ 141
7.3.1 Change, Tx/Rx, Baseband, Continuous, 2048k Menu (IDR) .........................................141
8. APPLICATION NOTES
...............................................................................................................142
8.1 DOPPLER & PLESIOCHRONOUS BUFFERING ......................................................................... 142
8.2 DETERMINING CLOCKING SCHEMES AND BUFFER SIZE ..................................................... 143
8.2.1 Clock Loop At One End: ..................................................................................................143
8.2.2 No Clock Loop..................................................................................................................143
8.2.3 Determining Buffer Size ...................................................................................................144
8.3 PARTIAL INSERT AND MULTIDESTINATIONAL WORKING ..................................................... 145
8.4 CHOOSING
OPTIMUM
CUSTOM VALUES OF RS N&K ............................................................ 146
8.5 NOTES ON DATA RATES & SYMBOL RATES ............................................................................ 147
8.6 DETERMINING EXACT MAXIMUM ESC BAUD RATES ............................................................. 148
8.7 CLOSED NETWORK PLUS ESC................................................................................................... 149
8.7.1 Overhead Rates ...............................................................................................................149
8.7.2 Closed Network Plus ESC via the Custom Service menu..............................................150
8.7.3 ESC channel with mis-match configurations...................................................................150
8.8 CROSS REFERENCE TO SDM300 D/I & FRAMING MODES. ................................................... 152
8.9 V.35 SCRAMBLERS........................................................................................................................ 154
8.10 INTERWORKING DIFFERENT MANUFACTURERS EQUIPMENT.......................................... 155
8.11 INTRODUCTION TO AUPC (AUTOMATIC UPLINK POWER CONTROL) .............................. 156
8.11.1 Introduction.....................................................................................................................156
8.11.2 Configuring AUPC for operation....................................................................................159
8.12 TUTORIAL ON CARRIER/NOISE & Eb/No MEASUREMENTS ................................................ 161
8.12.1 Introduction.....................................................................................................................161
8.12.2 Derivation of Eb/No from (C+N)/N.................................................................................161
8.12.3 Practical Implications of Displayed Eb/No.....................................................................162
8.12.4 Eb/No Explanatory Diagram ..........................................................................................163
8.12.5 Tables to Convert (C+N)/N to Eb/No.............................................................................164
9 1 FOR 1 OPERATION
................................................................................................................166
9.1 THEORY........................................................................................................................................... 166
9.2 SWITCHING PHILOSOPHY ........................................................................................................... 166
9.3 PRACTICAL 1 FOR 1 IMPLEMENTATION.................................................................................... 167
10 BOOT CODE OPERATION
.......................................................................................................168
10.1 FLASH SOFTWARE UPDATE .....................................................................................................168
10.2 OTHER BOOT CODE OPTIONS ................................................................................................. 169
APPENDIX A: DATA INTERFACE INFORMATION
...............................................................170
GENERAL............................................................................................................................................... 170
P1440 IN RS422 MODE ........................................................................................................................ 171
P1440 IN V.35 MODE............................................................................................................................ 172
P1440 IN RS232 MODE ........................................................................................................................ 173
P1440 IN G.703 MODE ......................................................................................................................... 174
P1440 IN X.21 MODE............................................................................................................................ 176
MIL-STD-188-114A INTERFACE.......................................................................................................... 178
