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Could the polarity of tha A and B legs of a line have an impact on the transmit speed of a modem.<br />
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For example I rune my modem with A leg 0v and B leg -48v would there be a difference if the legs were reversed
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Could the polarity of tha A and B legs of a line have an impact on the transmit speed of a modem.

For example I rune my modem with A leg 0v and B leg -48v would there be a difference if the legs were reversed

Polarity of the Telephone line

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.