This product has been discontinued. Datasheet SY 9223 Profibus
SY 9223 Profibus Balun
The SY 9223 Profibus balun adapts a symmetrical signal to a coaxial line. Usually twisted pairs with an impedance of approx. 120 Ω are used to transmit the Profibus signals.
The SY 9223 Profibus can be applied to use an existing triaxial wiring.
The symmetrical side has a screw terminal and the unsymmetrical side has a triaxial BNT-jack. The SY 9223 Profibus can be mounted to a DIN 50022 support rail with 35 mm base. Other housings and connectors are available upon request. When needed the outer braid can be connected to ground on pin 2 of the screw terminals.
To improve the protection against humidity and vibration the housing gets filled with an elastic casting compound.
To transmit video signals using twisted pair cables the balun can be used in the other direction, too.
| Frequency Range: | DC ->20 MHz |
| Nominal Impedance: | 120 Ω -> 50 Ω |
| Dielectric strength: | ≥100 V |
| Max. current per conductor: | 500 mA |
| Coaxial connector: | BNT-50-0-1 |
| Symmetrical connector: | Screw terminal |
| Housing material: | polycarbonate |
| Housing dimensions: | 17.5 x 58 x 90 mm |
| Fastening: | DIN support rail 35 mm |
| Weight: | 53 g |