RFL 9785 - Figure 9-13. RFL 9508 Attenuator Board

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Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and speciﬁcations without notice.

9.2.8 ATTENUATOR BOARD

Figure 9-13. RFL 9508 Attenuator Board

9.2.8.1 DESCRIPTION

The RFL 9508 Attenuator Board consists of five 10 watt power resistors, several other smaller resistors, a two-

position toggle switch, and two test points.

The function of the attenuator board is to provide 40dB of attenuation during loopback testing. Toggle switch

SW1 is used to select either Norm

al or Loopback operation. Test points TP1 and TP2 allow the user to monitor

the output of the attenuator.

RFL 9785 RFL Electronics Inc.

May 16, 2011 9-16 (973) 334-3100

Main Page

Warnings and Safety Summary3
Table of Contents7
Section 1. PRODUCT INFORMATION21
- Section 8 September22
- Section 22 March23
- Section 5 April24
- Figure 2-1. RFL 9785 Programmable ON/OFF Powerline Carrier System31
- Purpose of Equipment32
- Purpose of this Manual32
- Features33
- Physical Description34
- System Specifications34
- Table 2-1. Minimum Permissible Channel Spacings and Delays Times35
- Terminal Configuration35
- Table 2-2. RFL 9785 Modules, General Information36
- Figure 2-2. Typical Block Diagram of RFL 9785 Chassis37
- Rfl 9785 Subassemblies37
Section 2. GENERAL INFORMATION31
Section 8. POWER AMPLIFIER MODULE38
- System Theory of Operation40
Section 3. INSTALLATION43
- Introduction43
- Unpacking43
- Mounting44
- Figure 3-1. Mounting Dimensions, RFL 9785 Programmable ON/OFF Powerline Carrier System44
- Ventilation45
- Connections46
- Figure 3-2. Rear Panel View of Typical RFL 9785 TX/RX Chassis (Dwg. No. D-106577-A)51
Section 4. OPERATING INSTRUCTIONS52
- Introduction52
- Front Panel Controls and Indicators52
- Jumpers and Switch Settings52
- Figure 4-1. Controls and Indicators, RFL 9785 Front Panel53
- Table 4-1. Controls and Indicators, RFL 9785 Front Panel54
- Table 4-2. Controls and Indicator Information for RFL 9785 System Modules55
- Figure 4-2. Locations of Circuit Board Modules in a Typical RFL 9785 Chassis (Dwg. No. D-106577-A)56
- Power Supply Considerations57
- Input and Output Voltages57
- Transmit Functions58
- Receiver Functions59
- Figure 4-3. 9785 Fail Conditions60
- Initial Start-Up Procedure62
- Table 4-3. Input Attenuator Settings64
Section 5. MAINTENANCE65
- Introduction65
- Removal and Replacement66
- Fuse Replacement69
- Table 5-1. Fuse Replacement Data, RFL 9785 Power Supply I/O Modules69
- Corrective Maintenance70
- Extender Card70
- How to Arrange for Servicing70
Section 6. am LOGIC MODULE71
- Description71
- Figure 6-1. RFL 9785 am Logic Module71
- Specifications72
- Theory of Operation72
- Figure 6-2. Block Diagram, am Logic Module75
- Controls and Indicators76
- Table 6-1. Controls and Indicators, RFL 9785 am Logic Module76
- Table 6-2. Switch Settings, DIP Switch SW177
- Table 6-3. Switch Settings, DIP Switch SW1-6, -7, -877
- Table 6-4. Switch Settings, DIP Switch SW2-1, -2, -3, -477
- Table 6-5. Switch Settings - Block Hold Timer, DIP Switch SW2-6, -7, -878
- Figure 6-3. Controls and Indicators, RFL 9785 am Logic Module79
- Figure 6-4. Schematic, RFL 9785 am Logic (Dwg. No. D-106544-C) Sheet 1 of 281
Section 7. TRANSMITTER MODULE83
- Description83
- Figure 7-1. RFL 9785 Transmitter Module83
- Specifications84
- Theory of Operation85
- RFL 9785 RFL Electronics Inc85
- Figure 7-2. Transmitter Module Block Diagram85
- Figure 7-3. Block Diagram of a Basic DDS86
- Controls and Indicators87
- Table 7-1. Controls and Indicators, RFL 9785 Transmitter Module87
- Figure 7-4. Controls and Indicators, RFL 9785 Transmitter Module88
- Figure 7-5. Schematic, RFL 9785 Transmitter (Drawing No. D-106509-C) Sheet 1 of 291
- Figure 8-1. RFL 9785 Power Amplifier Module93
- Specifications94
- Figure 8-2. Controls and Indicators, RFL 9785 Power Amplifier Module96
- Table 8-1. Controls and Indicators, RFL 9785 Power Amplifier Module97
Section 9. RFL 9508 RF CHASSIS99
- Introduction99
- Figure 9-1. RFL 9508 RF Chassis Front Views99
- Module Descriptions, Rfl 9508 Rf Chassis100
- Figure 9-2. Front View of RFL 9508 RF Chassis100
- Table 9-1. Modules Included in 9508 RF Chassis100
- Figure 9-3. RFL 9508 RF Chassis Block Diagram101
- Figure 9-4. RFL 9508 Power Amplifier102
- Figure 9-5. RFL 9508 Power Amplifier, Power Supply104
- Table 9-2. Input Voltage Ranges of Power Amplifier Power Supplies104
- Figure 9-6. 9508 Power Amplifier Power Supply, Block Diagram105
- Figure 9-7. Tx Filter, Top View106
- Figure 9-8. Balance Board107
- Figure 9-9. Line Board108
- Figure 9-10. Block Diagram, RFL 9508 Line Board110
- Figure 9-11. RFL 9508 Rx Filter Board111
- Figure 9-12. RFL 9508 Rx Connection Board112
- Figure 9-13. RFL 9508 Attenuator Board113
- Figure 9-14. RFL 9508 RF Motherboard, Rear View114
- Table 9-3. Motherboard Rear Panel Connector Assignments114
- Table 9-4. TB1 Terminal Assignments115
- Module Placement in the Rf Chassis (50W Systems)116
- Figure 9-15. Module Placement in a Typical RFL 9508 RF Chassis (Top View)116
- Table 9-5. Module Placement in RF Chassis (50W System)116
- Cabling in the Rf Chassis118
- Table 9-6. 9508 RF Chassis Cables118
- Figure 9-16. Cable Connections in the RF Chassis119
- Module Placement in the Rf Chassis (100W Systems)120
- Figure 9-17. Module Placement in Auxiliary 3U RF Chassis for 100W Systems (Top View)120
- Setting Jumpers in the 9508 Rf Chassis121
- Table 9-7. Analog Chassis Jumper Configurations and Other Settings121
- Figure 9-18. Circuit Board of 50W Power Amp, Locations of Jumpers, Connectors, Switches and Potentiometers122
- Table 9-8. Function of Jumpers, Connectors and Potentiometers on Power Amp123
- Table 9-9. Function of DIP Switches SW1 and SW2 on Power Amp Board124
- Table 9-10. Tx Filter Setup Jumpers125
- Figure 9-19. Location of Jumpers on Tx Filter, PC Board 107828-2126
- Figure 9-20. Location of Jumpers on Tx Filter, PC Board 107828-1127
- Table 9-11. Setting Jumpers on Balance Board128
- Figure 9-21. Location of Jumpers on Line Board129
- Table 9-12. Line Board Setup Jumpers and Switch Setting130
- Figure 9-22. Location of Jumpers on Rx Filter Board, Showing Jumper Groupings132
- Rear Panel Wiring for 9780/85 for 50W Applications134
- Figure 9-23. Rear Panel Wiring of Typical RFL 9785, 2W System, 50W Chassis134
- Rear Panel Wiring for 9780/85 for 100W Applications135
- Figure 9-24. Rear Panel Wiring of Typical RFL 9785, 2W System, 100W Chassis135
- Figure 9-25. 9508 Line Board (B-103094-E)136
- Section 23 November136
- Figure 9-26. 9508 Tx Filter (D-107829-D)137
- Figure 9-27. 9508 RX Filter (PLCI- LINRXV1.1.DSN)138
- Figure 9-28. 9508 Attenuator Board (B-107814-B)139
- Figure 9-29. 9508 Balance Board, PLCI (B-107819-A)140
- Figure 9-30. 9508 RF Mother Board (B-103099-C)141
Section 10. OUTPUT FILTER MODULES142
- Description142
- Figure 10-1. Typical RFL 9785 Output Filter Module (Without Reflected Power Meter Option)142
- Specifications143
- Theory of Operation144
- Controls and Indicators144
- Table 10-1. Controls and Indicators, RFL 9785 Output Filter Modules145
- Figure 10-2. Controls and Indicators, RFL 9785 Output Filter Modules (106530-1 to 106530-5)146
- Figure 10-3. Controls and Indicators, RFL 9785 Output Filter Modules (106530-11 to 106530-15)146
- Table 10-2. RFL 9785 Output Filter Modules, Frequency Ranges147
- Figure 10-4. Schematic, RFL 9785 Output Filters Without RPM, Assy Nos. 106530-1 to -5 (Dwg. No. D-106534-D)148
- Figure 10-5. Schematic, RFL 9785 Output Filters with RPM, Assy Nos. 106530-11 to -15 (Dwg. No. D-106534-1-H)149
Section 11. RECEIVER DOWNSHIFTER MODULE150
- Description150
- Figure 11-1. RFL 9785 Receiver Downshifter Module150
- Specifications151
- Theory of Operation151
- Figure 11-2. Block Diagram, RFL 9785 Receiver Downshifter Module152
- Controls and Indicators154
- Table 11-1. Controls and Indicators, RFL9785 Receiver Downshifter Module154
- Table 11-2. Receive Frequency Select Switches155
- Figure 11-3. Controls and Indicators, RFL 9785 Receiver Downshifter Module156
- Figure 11-4. Schematic, RFL 9785 RX Downshifter (Dwg. No. D-106579-E) Sheet 1 of 2158
- RFL 9785 RFL Electronics Inc158
Section 12. RECEIVER DETECTOR MODULE160
- Description160
- Figure 12-1. RFL 9785 Receiver Detector Module160
- Specifications161
- Theory of Operation162
- Figure 12-2. Block Diagram, RFL 9785 Receiver Detector Module162
- Controls and Indicators164
- Table 12-1. Controls and Indicators, RFL 9785 Receiver Detector Module164
- Figure 12-3. Controls and Indicators, RFL 9785 Receiver Detector Module165
- Figure 12-4. Schematic, RFL 9785 RX Detector (Dwg. No. D-106519-F) Sheet 1 of 2168
- Introduction170
- Figure 13-1. Views of Sequence of Events/Irig-B Module and SOE/IRIG-B I/O Module170
Section 13. SEQUENCE of EVENTS/IRIG-B MODULE170
- Table 13-1. Events Recorded by the RFL 9785 Sequence of Events Module171
- Figure 13-2. Controls and Indicators for RFL 9785 SOE/IRIG-B Module173
- Table 13-2. Controls and Indicators, RFL 9785 SOE/IRIG-B Module174
- Figure 13-3. Schematic, RFL9785 SOE/IRIG-B (Dwg. No. D-106484-1-D) Sheet 1 of 2176
- Figure 13-4. Board and Panel Views of RFL 9785 SOE/IRIG-B I/O Module178
- Sequence of Events/Irig-B I/O Module178
- Figure 13-5. Controls and Indicators for the RFL 9785 SOE/IRIG-B I/O Module179
- Table 13-3. Controls and Indicators, RFL 9785 SOE/IRIG-B I/O Module179
- Figure 13-6. Schematic, RFL 9785 SOE/IRIG-B I/O (Dwg. No. D-106479-B)180
- Establishing Communications181
- Figure 14-1. Making Connections from the PC to the RFL 9785 Front Cover181
- Introduction181
- Figure 14-2. Making Connections from the PC to the RFL 9785 Rear Connector182
- Viewing April Commands182
- Displaying April Help183
- Figure 14-3. APRIL Main Menu183
- Figure 14-4. Typical Values Display for 9785 Operating Mode184
- Viewing the Values Display184
- Figure 14-5. Typical Programming Menu186
- The Programming Mode186
- Figure 14-6. Typical Parameter Settings Display188
- Figure 14-7. Typical Read Settings Menu190
- Reading Parameter Settings190
- Viewing Configuration and Software Information190
- Figure 14-8. Typical Configuration and Software Version Display191
- Figure 14-9. Typical Update Display191
- The Update Mode191
- Figure 14-10. Typical Sequence-Of-Events Menu192
- The Sequence-Of-Events Mode192
- Figure 14-11. Typical Directory of Events Display194
- Figure 14-12. Typical Individual Event Record195
- The Window Remote April Mode195
- Password Protection196
Section 15. VOICE MODULE197
- Description197
- Figure 15-1. RFL 9785 Voice Module197
- Specifications198
- Theory of Operation198
- Figure 15-2. Input Signal from RL 9785 Transmitter Module198
- Figure 15-3. Block Diagram, RFL 9785 Voice Module199
- Controls and Indicators202
- Table 15-1. Controls and Indicators, RFL9785 Voice Module202
- Figure 15-4. Controls and Indicators, RFL 9785 Voice Module203
- Figure 15-5. Schematic, RFL 9785 Voice Module (Dwg. No. D-106569-C)205
- Voice Filter206
- Figure 15-6. RFL 9785 Voice Filter206
- Figure 15-7. Controls and Indicators, and Component Locator Drawing, RFL 9785 Voice Filter207
- Table 15-2. Controls and Indicators, RFL 9785 Voice Filter207
- Figure 15-8. Schematic, RFL 9785 Voice Filter (Dwg. No. D-106584-B)208
Section 16. CHECKBACK MODULE209
- Description209
- Figure 16-1. RFL 9785 Checkback Module, Front Panel View209
- Figure 16-2. Two-Terminal Line Testing210
- Figure 16-3. Three-Terminal Line Testing210
- Figure 16-4. Four-Terminal Line Testing210
- Specifications211
- Typical Checkback Application211
- Figure 16-5. Checkback Testing of Typical Two-Terminal System211
- Theory of Operation213
- Figure 16-6. Block Diagram, RFL 9785 Checkback Module215
- Controls and Indicators216
- Table 16-1. Controls and Indicators, RFL 9785 Checkback Module Front Panel216
- Figure 16-7. Controls and Indicators, RFL 9785 Checkback Module Front Panel217
- Table 16-2. Controls and Indicators, RFL 9785 Checkback Module Circuit Board218
- Figure 16-8. Controls and Indicators, RFL 9785 Checkback Module Circuit Board219
- Checkback Testing220
- Figure 16-9. APRIL Commands for Use with Checkback Module223
- Figure 16-10. Typical Alarm Display224
- Figure 16-11. Typical Values Display224
- Figure 16-12. Typical Read Settings Menu226
- Figure 16-13. Typical Configuration and Software Version Display226
- Figure 16-14. Typical UPDATE Screen227
- Figure 16-15. Typical Programming Menu228
- Figure 16-16. Typical Programmed Parameter Settings List - Master Mode230
- Figure 16-17. Typical Programmed Parameter Settings List - Remote Mode231
- Figure 16-18. Typical Test Menu236
- Figure 16-19. Typical Test Routine List236
- Figure 16-20. Schematic, RFL 9785 Checkback (Dwg. No. D-106529-C) Sheet 1 of 3239
Figure 17-1. RFL 9785 Checkback Communications Module242
Section 17. CHECKBACK COMMUNICATIONS MODULE242
- Figure 17-2. Schematic, RFL 9785 Checkback Communications Module (Dwg. No. C-106649-A)244
- Introduction245
Section 18. POWER SUPPLY MODULE & POWER SUPPLY I/OMODULE245
Section 19. I/O MODULES263
- Introduction263
- Table 19-1. RFL 9785 I/O Modules Application Information264
- Solid State Input I/O Module265
- Figure 19-2. Solid State Input I/O Module, Rear Panel View265
- Table 19-2. Controls and Indicators, Solid State Input I/O Module266
- Figure 19-3. Controls and Indicators, Solid State Input I/O Modules267
- Figure 19-4. Schematic, RFL 9785 Solid-State Input I/O (Dwg. No. D-106439-3-A)269
- Figure 19-5. Schematic, RFL 9785 Solid-State Logic Level Input I/O (Dwg. No. D-106439-5-B)270
- Solid State Input/Output I/O Module271
- Figure 19-6. Typical Solid State Input/Output I/O Module, Rear Panel View271
- Table 19-3. Solid-State Input/Output I/O Modules, General Information271
- Figure 19-7. Controls/Indicators, Solid State Input/Output I/O Modules (Assy. No. 106635-1 and -2)272
- Figure 19-8. Controls/Indicators, Solid State Logic Level Input/Output I/O Modules (Assy. No. 106635-3 and -4)273
- Table 19-4. Controls and Indicators, Solid State Input/Output I/O Modules (Assembly No. 106635-1, -2, -3, and -4)274
- Figure 19-9. Schematic, RFL 9785 Solid State Input/Output I/O (Dwg. No. D-106639-C) Sheet 1 of 2275
- Figure 19-10. Schematic, RFL 9785 SS Logic Level Input/Output I/O (Dwg. No. D-106639-5-C) Sheet 1 of 2277
- Alarm Relay I/O Module279
- Figure 19-11. Alarm Relay I/O Module, Rear Panel View279
- Table 19-5. Alarm Outputs279
- Figure 19-12. Schematic, RFL 9785 Alarm Relay I/O (Dwg. No. D-106469-C)281
- Rf Line I/O Module282
- Figure 19-13. RFL Line I/O Module, Rear Panel View282
- Figure 19-14. Controls and Indicators, RFL Line I/O Module283
- Table 19-6. Controls and Indicators for RF Line I/O Module283
- Figure 19-15. Schematic, RFL 9785 RF Line I/O (Dwg. No. C-106599-B)284
- Current Limit I/O Module285
- Figure 19-16. Current Limit I/O Module, Rear Panel View285
- Figure 19-17. Schematic Digram, Current Limit I/O Module286
- External Power Amp I/O Module287
- Figure 19-18. External Power Amp I/O Module, Rear Panel View287
- Table 19-7. Logic Straps288
- Table 19-8. Logic Straps288
- Figure 19-19. Controls and Indicators, External Power Amp I/O Module (Assembly No. 106675-1)289
- Figure 19-20. Schematic, RFL 9785 External Power Amp I/O (Dwg. No. D-106679-1-B)290
- Skewed Hybrid I/O291
- Figure 19-21. Controls and Indicators, RFL 9785 Skewed Hybrid I/O293
- Table 19-9. Controls and Indicators, RFL 9785 Skewed Hybrid I/O293
- Figure 19-22. Schematic, RFL 9785 Skewed Hybrid (Dwg. No. D-106629-A)294
Section 20. CHASSIS ASSEMBLY296
- Figure 20-1. RFL 9785 Chassis Assembly, Front View with Cover Removed296
- Figure 20-2. Schematic, RFL 9785 Tx/Rx Motherboard (Dwg. No. D-106549-2-A)298
- Introduction299
Table 21-1. Checkback Alarm Chassis, General Information299
Section 21. CHECKBACK ALARM CHASSIS299
Figure 21-1. RFL 9785 Checkback Alarm Chassis, Front and Rear Views299
Figure 21-2. Schematic, RFL 9785 Checkback Alarm (Dwg. No. D-106659-A)301
Section 22. SIMPLIFIED COMMISSIONING PROCEDURE302
- Simplified Commissioning Procedure302
- Figure 22-1. Controls and Indicators, 9785 Output Filter Modules (106530-1 to -5 WITHOUT RPM Option)302
- Figure 22-3. Controls and Indicators, RFL 9785 Receiver Downshifter Module (106575) - First303
- Table 22-1 Input Attenuator Settings303
- Figure 22-4. Controls and Indicators, RFL 9785 Receiver Downshifter Module (106575) - Second304
- Comissioning Test Procedure for 50 and 100 W Systems Using the 9508 Rf Chassis305
- Table 22-2 (Partial) Controls and Indicators, RFL 9780/85 Transmitter Module305
- Figure 22-6. Location of 50W Power Amplifier306
- Figure 22-5. Controls and Indicators, RFL 9780/85 Transmitter Module (106505)306
- Figure 22-7. Location of 50W Power Amplifier Circuit Board307
- Figure 22-8. Rear of 50W RF Chassis308
- Rfl 9785 Functional Test Procedure310
- Table 22-3 (Partial). Controls and Indicators, RFL 9785 Transmitter Module310
- Table 22-4 RFL 9785 Output Filter Modules, Frequency Range311
- Figure 22-10. Potentiometer Locations312
- Table 22-5 Controls and Indicators, RFL 9785 Power Amplifier Module312
- Figure 22-11. Location of "RESERVE" Keying Inputs313
- Table 22-6 Receive Frequency Select Switches314
- Figure 22-12. Controls and Indicators, RFL 9785 Receiver Downshifter Module (106575)314
- Table 22-7 Input Attenuator Setting315
- Figure 22-13. Controls and Indicators, RFL 9785 Receiver Detector Module (106515-X)316
March 1, 2013302
Section 23. INDEX320

RFL 9785 - Figure 9-13. RFL 9508 Attenuator Board

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