Datum Systems PSM-500 - Page 4

PSM-500/500L/500LT SCPC Satellite Modem Table of Contents
PSM-500/500L/500LT - Rev. 0.91
ii
1.2.7.1.1 AUPC Control Channel (AUPC) ........................................................... 1-15
1.2.7.1.2 Remote Modem Control Channel (RMC) ............................................. 1-15
1.2.7.1.3 Auxiliary Bit Control Channels (RFC) ................................................... 1-15
1.2.8 Standard and Optional Modem FEC Cards ............................................................... 1-15
1.2.8.0 Special Codec CT Modes ................................................................................. 1-18
1.2.8.1 Viterbi, Trellis Code Modulation Codec ............................................................ 1-18
1.2.8.2 Reed-Solomon Codec Capability ...................................................................... 1-18
1.2.8.3 Turbo Product Codes FEC Capability ............................................................... 1-20
1.2.8.4 LDPC FEC Capability ....................................................................................... 1-20
1.2.9 Optional Interface Capability ...................................................................................... 1-21
1.2.10 Modem Circuit Implementation ................................................................................. 1-21
Chapter 2 - Installation ....................................................................................................................... 2-1
2.0 Installation Requirements ...................................................................................................... 2-1
2.1 Unpacking .............................................................................................................................. 2-1
2.1.1 Removal and Assembly ................................................................................................ 2-1
2.2 Mounting Considerations ....................................................................................................... 2-1
2.3 Modem Connections .............................................................................................................. 2-2
Figure 2-1 Modem Rear Panel ................................................................................ 2-5
2.3.1 Data Interface Pin Connections .................................................................................... 2-6
Table 2–1 Data Interface Connector J3 Pin Assignment by Signal ................................. 2-6
2.3.1.1 Connecting the Data Interface to Other Equipment .................................................. 2-7
2.3.2 Remote Control Connection ......................................................................................... 2-7
Table 2–2. Remote Control Connector J6 Pin Assignment .............................................. 2-8
2.3.3 Alarm Connection ......................................................................................................... 2-8
Table 2–3. Alarm Connector J5 Pin Assignment ................................................. 2-8
2.3.4 Auxiliary (AUX) Connection .......................................................................................... 2-9
2.3.5 L-Band BUC Power Connection ................................................................................... 2-9
Table 2–4. BUC Power Connector J11 Pin Assignment ..................................... 2-9
2.3.6 Redundancy Connection .............................................................................................. 2-9
Figure 2-2 - Modem Connections for 1:1 Redundancy ............................................ 2-10
2.3.6.1 Set-Up Procedure for 1:1 Redundancy ................................................................... 2-11
2.4 Modem Checkout ................................................................................................................. 2-12
2.4.1 Initial Power-Up .......................................................................................................... 2-12
2.5 Modem Control from the Front Panel ................................................................................... 2-12
2.5.1 Parameter Setup ........................................................................................................ 2-13