9122-IS-PS
The 9122-IS repeats the fieldbus signal and supplies an intrinsically safe IIB fieldbus segment.
The 9122-IS-PS is an Eaton MTL 9122-IS simplex FISCO power supply for Gas Group IIB intrinsically safe fieldbus segments. The -PS ordering option specifies screw terminals. Eaton rates the IIB output up to 256 mA for supported fieldbus devices.
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Eaton EPS 9122-IS Rev I identifies 9122-IS-PS as the IIB simplex FISCO power supply with screw terminals. It documents up to 256 mA output current and host-to-IS fieldbus signal repeating.
The official Eaton technical document includes the exact 9122-IS-PS ordering variant, FISCO system role and electrical specifications.
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Use Eaton’s technical data to confirm IIB classification, -PS screw-terminal connection, fieldbus network, mounting and segment design.
Eaton MTL is the product line; 9122-IS identifies the IIB simplex FISCO power-supply family; and 9122-IS-PS is the complete supplied product reference that must be matched to the installed nameplate.
The 9122-IS repeats the fieldbus signal and supplies an intrinsically safe IIB fieldbus segment.
Eaton specifies FOUNDATION Fieldbus H1 and PROFIBUS PA physical networks for this supply.
The host-side terminator is switch-selectable; the intrinsically safe side has a fixed terminator.
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