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SDM-2020 Satellite Demodulator Revision 4
ECL/HSSI Data Interface MN/SDM2020D.IOM
10–7
Table 10-4. HSSI Pinout (J3)
HSSI/EIA-613 Interface Connector Pinout
Signal Function HSSI
Signal
EIA-613
Circuit
Pin #
(+, -)
Circuit
Direction
Comment
Signal Ground SG 102 1, 26 Mod/Demod
Receive Timing RT 115 2, 27 from DCE Demodulator
DCE Available CA 107 3, 28 from DCE Mod/Demod
Receive Data RD 104 4, 29 from DCE Demodulator
Loopback Circuit C LC undefined 5, 30 from DCE Mod/Demod
Send Timing ST 114 6, 31 from DCE Modulator
Signal Ground SG 102 7, 32 Mod/Demod
DTE Avalasse TA 108/2 8, 33 to DCE Mod/Demod
Terminal Timing TT 113 9, 34 to DCE Modulator
Loopback Circuit A LA 143 10, 35 to DCE Mod/Demod
Send Data SD 103 11, 36 to DCE Modulator
Loopback Circuit B LB 144 12, 37 to DCE Mod/Demod
Signal Ground SG 102 13, 38 Mod/Demod
TX PSYNC
(See Note 1).
TPSYNC undefined 14, 39 to DCE Modulator
TX DVALID
(See Note 1).
TDVALID undefined 15, 40 to DCE Modulator
Reserved (to DCE) 16, 41 unused
Reserved (to DCE) 17, 42 unused
Reserved (to DCE) 18, 43 unused
Signal Ground SG 102 19, 44 Mod/Demod
Carrier Detect (lock)
(See Notes 1 and 2).
CD undefined 20 from DCE Demodulator
Demodulator Fault
(See Notes 1 and 3).
DF undefined 45 from DCE Demodulator
Modulator Fault
(See Notes 1 and 3).
MF undefined 21 from DCE Modulator
Reserved (to DTE) 46 unused
RX PSYNC
(See Note 1).
RPSYNC undefined 22, 47 from DCE Demodulator
RX DVALID
(See Note 1).
RDVALID undefined 23, 48 from DCE Demodulator
Test Mode TM 142 24, 49 from DCE Mod/Demod
Signal Ground SG 102 25, 50 Mod/Demod
Notes:
1. Bold signal function names are non-HSSI defined signals. On Cisco routers there is no
connection to those pins. Refer to the Comtech EF Data web site for an Application Note
describing the use of the SDM-2020 with Cisco routers.
2. TTL - output.
3. TTL – open collector output.
- Satellite Demodulato 1
- Installation and O 1
- Errata A 3
- Errata B 5
- Errata C 7
- SDM-2020 9
- Errata D 10
- Customer Support 12
- Table of Contents 13
- Preface MN/SDM2020D.IOM 14
- Figures 18
- Metric Conversion 22
- Trademarks 22
- Installation 24
- Warranty Policy 26
- Limitations of Warranty 26
- Exclusive Remedies 26
- Disclaimer 26
- Chapter 1. INTRODUCTION 27
- Mbps, with maximum 28
- 1.2 Assemblies 30
- 1.3 FAST Options 30
- 1.4.2 Transmit/Receive Data 32
- Chapter 2. INSTALLATION 35
- 2.2 Installation 36
- J3 PARALLEL J4 SERIAL J5 AUX 38
- Chapter 3. EXTERNAL 41
- CONNECTIONS 41
- 3.2 Connections 44
- 3.2.2 Fault Connector (J2) 45
- 3.2.3 Monitor Points (J21) 46
- 3.2.5 AC Power 47
- 3.2.6 Fuse Data 48
- 3.2.7 DC Power (Optional) 48
- 3.2.8 Ground (GND) or Earth 48
- SYSTEM TOPOLOGY (FAST) 49
- CHAPTER 4. FULLY ACCESSIBLE 49
- 4.1.1.1 Activation Procedure 50
- Select Features: 50
- Verify Upgrade 52
- Chapter 5. SPECIFICATION 53
- 5.2 BER Performance 58
- Specification 59
- 5.3 Data Rates 61
- 5.4 Fault Tree 62
- Chapter 6. FRONT PANEL 65
- OPERATION 65
- 6.1.1 Front Panel 66
- 6.1.2 LED Indicators 67
- 6.1.3 Front Panel Keypad 68
- 6.1.4 Menu System 69
- SDM-2020D 70
- MENU TREE 70
- IMPORTANT 105
- RX INTRF Firmware 107
- to set the baud 112
- to execute the change 114
- (Conditional) 116
- 6.1.13 Initial Defaults 122
- (see Note 4) 13 VDC 123
- (see Note 5) Off 123
- (see Note 5) 123
- 6.1.14 (C+N)/N to C/N and E 124
- Conversion 124
- Conversion Chart 125
- 7.2 Description 128
- 7.3 Configuration 130
- 7.3.1 User Interfaces 131
- 7.3.1.3 Auxiliary, J5 134
- Chapter 8. LOW VOLTAGE 137
- DIFFERENTIAL (LVDS) 137
- INTERFACE 137
- 8.1.2 Description 138
- 8.1.3 Configuration 139
- DEMODULATOR 140
- MODULATOR 140
- 8.1.4 User Interfaces 141
- 8.1.4.2 Auxiliary, J5 143
- 9.1.1 Applicable Documents 145
- 9.1.2 Description 146
- 9.1.3 User Interfaces 149
- 10.1.1 Applicable Documents 154
- 10.1.2 Description 154
- 10.1.3 Specifications 154
- 159
- 10.1.4.6 Terrestrial Timing 162
- 10.1.5.2 Faults 165
- 11.1.2 Description 168
- 11.1.3 Specifications 171
- 11.1.5.1 Buffer Size 176
- 11.1.5.2 Frame Structures 176
- 11.1.5.5 Buffer Centering 177
- interfere with 178
- 11.1.7 Test Modes 179
- 11.1.7.1 Interface Loopback 179
- Connectors J3, J4 & J6 180
- 12.1.2 Description 184
- 0.0 V ± 0.5 V 186
- 13.1.2 Description 192
- (see text) 193
- 13.1.3.1 Jumper Selection 195
- 13.1.4 Loopback Connection 197
- 13.1.5 Loop Thru 197
- Appendix A. REMOTE CONTROL 201
- COMMANDS 201
- A.1.2 Start Character 202
- A.1.3 Device Address 202
- A.1.4 End Character 202
- A.1.5 Command/Response 203
- RS-422 Interface 208
- LVDS Interface 209
- ASI/RS-422 Interface 209
- ASI/LVDS Interface 209
- SMPTE-310 Interface 210
- G.703 Interface 210
- ECL_HSSI Interface 211
- A.1.11 Configuration Status 214
- A.1.13 Stored Faults 220
- A.1.16 Data Interfaces 227
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