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How is span powering transferred to the station side through Teleline?

April 26, 2017powering span station transferred

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How is span powering transferred to the station side through Teleline?

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A 7501-40 should be used, with the four wires DX signaling setup. To do so, the following is required: Two 2-wire AC cards (data, T1, HDSL) One 7501-16 OPX card to feed the DC One 7501-40 holding coil to reinsert the DC For more information on how to install this setup, refer to the installation guide on the holding coil 7501-40.