Comtech EF Data SDM-300A, Installation And Operation Manual

Page: 6 / 398

Preface SDM-300A
iv Rev. 4
3.3.10.4 Receive Interface Faults ........................................................................................................... 3–41
3.3.10.5 Common Equipment Faults ...................................................................................................... 3–42
3.3.10.6 Backward Alarms ..................................................................................................................... 3–42
3.3.11 Stored Faults/Alarms .................................................................................................................... 3–45
3.3.11.1 Unavailable Seconds Fault ....................................................................................................... 3–45
3.3.12 Remote AUPC .............................................................................................................................. 3–47
3.3.12.1 Remote AUPC Configuration................................................................................................... 3–47
3.3.12.2 Remote AUPC Monitor............................................................................................................ 3–47
3.3.13 Utility............................................................................................................................................ 3–49
3.3.13.1 Utility Modulator...................................................................................................................... 3–51
3.3.13.2 Utility Demodulator ................................................................................................................. 3–54
3.3.13.3 Utility Interface ........................................................................................................................ 3–58
3.3.13.4 Utility System........................................................................................................................... 3–62
3.3.13.5 Utility Modem Type Functions ................................................................................................ 3–68
3.3.13.6 Utility Factory Setup ................................................................................................................ 3–71
3.3.14 SDM-300A Custom Modem Defaults .......................................................................................... 3–74
3.4 Software Configuration ........................................................................................................................... 3–76
3.4.1 Modem Types.................................................................................................................................... 3–76
3.4.2 Operation........................................................................................................................................... 3–77
3.4.2.1 IDR Operation .......................................................................................................................... 3–77
3.4.2.2 IBS Operation........................................................................................................................... 3–78
3.4.2.3 D&I Operation.......................................................................................................................... 3–79
3.4.2.4 ASYNC/AUPC Operation........................................................................................................ 3–80
3.4.2.5 EFD Closed Network Operation............................................................................................... 3–81
3.4.2.6 Custom Operation..................................................................................................................... 3–82
3.4.2.7 SDM-100 Emulation Operation................................................................................................ 3–83
3.4.2.8 SDM-6000 Emulation Operation.............................................................................................. 3–84
3.4.2.9 Revision Emulation Operation ................................................................................................. 3–85
3.5 Clocking Options...................................................................................................................................... 3–86
3.5.1 EIA-232, EIA-422, or V.35 Master/Master....................................................................................... 3–86
3.5.2 EIA-232, EIA-422, or V.35 Master/Slave......................................................................................... 3–86
3.5.3 IDR/IBS G.703 Master/Master ......................................................................................................... 3–87
3.5.4 IDR/IBS G.703 Master/Slave............................................................................................................ 3–87
3.5.5 D&I G.703 Master/Master ................................................................................................................ 3–93
3.6 Buffering ................................................................................................................................................... 3–93
3.6.1 .................................................................................................................................................................... 3–96
3.6.1
Buffer Size ........................................................................................................................................ 3–96
3.6.1.1 Doppler..................................................................................................................................... 3–96
3.6.1.2 Plesiochronous.......................................................................................................................... 3–97
3.6.1.3 Frame/Multiframe Length ........................................................................................................ 3–98
3.6.1.4 Multiples of the Frame Length ................................................................................................. 3–98
3.6.1.5 Total Buffer Length.................................................................................................................. 3–98
3.6.2 Converting Between Bits and Seconds.............................................................................................. 3–98
3.6.2.1 Bits to Seconds ......................................................................................................................... 3–98
3.6.2.2 Seconds to Bits ......................................................................................................................... 3–98
CHAPTER 4. THEORY OF OPERATION ...................................................................4–1
4.1 Monitor and Control (M&C) .................................................................................................................... 4–1
4.1.1 Theory of Operation ............................................................................................................................ 4–2
4.1.2 Remote Baud Rate............................................................................................................................... 4–4