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| PartNumber | SI32193-A-FM1 | SI32193-A-FM1R | SI32193-A-GM1 |
| Description | Wideband FXS with ISI Interface, DTMF detection, and dc-dc controller (-106V max. battery) | Wideband FXS with ISI Interface, DTMF detection, and dc-dc controller (-106V max. battery) | Wideband FXS with ISI Interface, DTMF detection, and dc-dc controller (-106V max. battery) |