7000-SERIES MULTI-AMP CONFIGURATION GUIDE
97-8002465_06-09-14
Information subject to change
3
List of Figures
Figure 1.1 – Maximum Continuous Output in 7000-Series Multi-amp Systems ................................................. 4
Figure 3.1 – Two in Series: Single-Ended vs. Differential....................................................................................... 7
Figure 3.2 – SIM-BNC-OPTOC card jumper locations ............................................................................................. 7
Figure 3.3 – 7224 Amplifier Access Panel Screw Locations ................................................................................ 9
Figure 3.4 – Master/Slave Jumper Locations ......................................................................................................... 9
Figure 3.5 – 7224 Output Terminal Resistor .......................................................................................................... 9
Figure 3.6 – 7548/7796 Output Terminal Resistor ............................................................................................... 9
Figure 3.7 – Terminating the Amplifier Input ........................................................................................................ 10
Figure 3.8 – Verifying DC Offset ............................................................................................................................. 11
Figure 3.9 – Verifying Amp Gain ............................................................................................................................ 11
Figure 3.10 – Verifying System Gain ..................................................................................................................... 12
Figure 3.11 – Two Amplifiers in Series – Differential Configuration ................................................................... 12
Figure 3.12 – Terminating the Amplifier Input ...................................................................................................... 13
Figure 3.14 – Verifying Amp Gain .......................................................................................................................... 14
Figure 3.13 – Verifying DC Offset .......................................................................................................................... 14
Figure 3.15 – Verifying System Gain ..................................................................................................................... 15
Figure 3.16 – Two Amplifiers in Series – Single-Ended Configuration ................................................................ 15
Figure 3.17 – Three Amplifiers in Series – Single-Ended Configuration ............................................................. 16
Figure 4.1 – 7224 Ballast Resistor Mounting ...................................................................................................... 17
Figure 4.2 – 7796 Ballast Resistor Mounting ...................................................................................................... 17
Figure 4.3 – 7224 Ballast Resistor Connected to Output Terminal .................................................................... 17
Figure 4.4 – 7796 Ballast Resistors Connected to Output Terminal .................................................................. 17
Figure 4.5 – Access Panel Screw Locations ......................................................................................................... 18
Figure 4.6 – Gain Control Connection on Main Board......................................................................................... 18
Figure 4.7 – Gain Control Pin Settings .................................................................................................................. 19
Figure 4.8 – Connecting for Balancing (Four in Parallel shown).......................................................................... 19
Figure 4.9 – Terminating the Amplifier Input ........................................................................................................ 20
Figure 4.10 – Main Board Balancing Control Locations ...................................................................................... 20
Figure 4.11 – Wiring and Test Points for DC Offset .............................................................................................. 21
Figure 4.12 – Wiring the Paralleled Input Wire ..................................................................................................... 21
Figure 4.13 – Optional BNC Parallel Input Wiring (Three in Parallel shown) ..................................................... 21
Figure 4.14 – Wiring and Test Points for Amp Gain ............................................................................................. 22
Figure 4.15 – Wiring and Test Points for Gain Matching ..................................................................................... 23
Figure 4.16 – Two Amplifiers Paralleled ............................................................................................................... 24
Figure 4.17 – Three Amplifiers Paralleled ............................................................................................................. 25
Figure 4.18 – Four Amplifiers Paralleled ............................................................................................................... 26
Figure A-1 – Wire Current-Carrying Capacity Chart ............................................................................................... 27
Figure B-1 – Critical Wire Lengths in Parallel Systems ......................................................................................... 28
Figure C-1 – Output Cables constructed for use in a Two-in-Parallel System ..................................................... 29
Figure D-1 – DB-25 Cable Wiring for a Four-in-Parallel System ........................................................................... 30
Figure E-1 – 7224 Access Panel Screw Locations ............................................................................................... 31
Figure E-2 – Master/Slave Jumper Locations ....................................................................................................... 31
Figure E-3 – Output Terminal Resistor .................................................................................................................. 31
Figure E-4 – 7548/7796 Output Terminal Resistor ............................................................................................. 31
Figure E-5 – SIM-BNC-OPTOC, Factory Default Settings ....................................................................................... 32
