Fluke CableIQ - Symbols and Safety Information; International Electrical Symbols; General Safety Warnings

Testing Speaker Cabling
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Testing Speaker Cabling
The Speaker Test generates audible tones for testing the
wiring and phase of installed twisted pair speaker
cabling.
Turn the rotary switch to Diag; then select Speaker Test.
axy39
4-clip test lead wiring:
+ Pair 12: green + Pair 45: blue
- Pair 36: orange - Pair 78: brown