Question

You are comparing the cost of inverse multiplexing to using wideband facilities to transmit data at 38400 bps , and you determine the monthly cost of the following facilities and devices. $$ \begin{array}{cc} \text { Facility/device } & \text { Monthly cost } \\ \text { Wideband line } & \$ 2820 \\ \text { Voice-grade line } & \$ 750 \\ \text { Inverse multiplexer at } & \$ 225 \\ 19200 \mathrm{bps} \text { modem at } & \$ 35 \end{array} $$ Would it be economical with these figures to use inverse multiplexers?

   You are comparing the cost of inverse multiplexing to using wideband facilities to transmit data at 38400 bps , and you determine the monthly cost of the following facilities and devices.
$$
\begin{array}{cc}
\text { Facility/device } & \text { Monthly cost } \\
\text { Wideband line } & \$ 2820 \\
\text { Voice-grade line } & \$ 750 \\
\text { Inverse multiplexer at } & \$ 225 \\
19200 \mathrm{bps} \text { modem at } & \$ 35
\end{array}
$$
Would it be economical with these figures to use inverse multiplexers?

Understanding Data Communications: From Fundamentals to Networking

Gilbert Held 3rd Edition

Chapter 12, Problem 15

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We need to determine whether using inverse multiplexing is more economical than using a wideband facility for transmitting data at 38,400 bps. Show more…

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You are comparing the cost of inverse multiplexing to using wideband facilities to transmit data at 38400 bps , and you determine the monthly cost of the following facilities and devices. $$ \begin{array}{cc} \text { Facility/device } & \text { Monthly cost } \\ \text { Wideband line } & \$ 2820 \\ \text { Voice-grade line } & \$ 750 \\ \text { Inverse multiplexer at } & \$ 225 \\ 19200 \mathrm{bps} \text { modem at } & \$ 35 \end{array} $$ Would it be economical with these figures to use inverse multiplexers?

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