Comtech EF Data DMDVR20 LBST Rev 1.1 - Manual (Page 7)

Table of Contents DMDVR20 LBST Satellite Modem
viii TM136 – Rev. 1.1
3.2.2 Modem Remote Communications (RLLP)____________________________________ 3-6
3.2.3 Ethernet M&C Port _____________________________________________________ 3-6
3.2.4 Modem Monitor Status __________________________________________________ 3-6
3.3 Internal Clock ___________________________________________________________ 3-7
3.4 Loopback Features (Terrestrial) _____________________________________________ 3-8
3.5 Clocking Options _______________________________________________________ 3-10
3.5.1 TX Clock Options _____________________________________________________ 3-10
3.5.1.1 SCTE: Serial Clock Transmit External ____________________________________ 3-11
3.5.1.2 SCT: Serial Clock Transmit ____________________________________________ 3-11
3.5.2 RX Buffer Clock Options ________________________________________________ 3-11
3.5.2.1 RX Sat Clock _______________________________________________________ 3-12
3.5.3 EXT REF: External Reference, Top BNC Port, J10 ___________________________ 3-12
3.6 RS530/422/V.35 Interface (Standard) _______________________________________ 3-12
3.7 Reed-Solomon Codec (TX Only) ___________________________________________ 3-13
3.7.1 Reed-Solomon Operation _______________________________________________ 3-13
3.7.2 Reed-Solomon Code Rate ______________________________________________ 3-13
3.7.3 Interleaving __________________________________________________________ 3-13
3.8 Locating the ID Code Operational Procedure__________________________________ 3-15
3.9 Strap Codes (TX Only Option) _____________________________________________ 3-15
Section 4 - User Interfaces ..........................................................................................4-1
4.0 User Interfaces __________________________________________________________ 4-1
4.1 Front Panel User Interface _________________________________________________ 4-1
4.1.1 LCD Front Panel Display_________________________________________________ 4-2
4.1.2 Cursor Control Arrow Keys _______________________________________________ 4-2
4.1.3 Numeric Keypad _______________________________________________________ 4-2
4.1.4 Front Panel LED Indicators _______________________________________________ 4-3
4.2 Parameter Setup ________________________________________________________ 4-4
4.3 Front Panel Control Screen Menus __________________________________________ 4-4
4.3.1 Main Menus___________________________________________________________ 4-4
4.3.2 Modulator Menu Options and Parameters____________________________________ 4-5
4.3.3 Demodulator Menu Options and Parameters _________________________________ 4-9
4.3.4 Interface Menu Options and Parameters____________________________________ 4-12
4.3.5 Monitor Menu Options and Parameters_____________________________________ 4-15
4.3.6 Alarms Menu Options and Parameters _____________________________________ 4-17
4.3.7 System Menu Options and Parameters_____________________________________ 4-23
4.3.8 Test Menu Options and Parameters _______________________________________ 4-28