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Polarization:
Three lug 450 Series and TRB (70 Series) connectors are available with polarization to assure mating of a specific cable and jack pair. With the 450 Series connectors, be sure to specify polarization whenever using 3-lug connectors. For the majority of applications utilizing Trompeter's TRB (70 Series) connectors, polarization is not required.
TRB /
TRT (70 Series) Polarization
| Polarization | A | B | C |
| none (standard) | 120 degrees | 120 degrees | 120 degrees |
| T | 100 degrees | 150 degrees | 110 degrees |
| U | 120 degrees | 130 degrees | 110 degrees |
| V | 115 degrees | 130 degrees | 115 degrees |
| W | 125 degrees | 110 degrees | 125 degrees |
| X | 130 degrees | 100 degrees | 130 degrees |
| Y | 110 degrees | 140 degrees | 110 degrees |
| Z | 100 degrees | 160 degrees | 100 degrees |
| S | 135 degrees | 135 degrees | 90 degrees |
"P"
Polarization (450 Series)
"R"
Polarization (450 Series) 
"W"
Polarization (450 Series)
Connector Series Descriptions Crimp Styles Keying Polarization