MultiTech MMH904CA/56 Statistical Multiplexer/MMH956K-56K Link DSUCard-Free Ship

From a closing industrial facility. Untested but presumed to be working well. Buy with the confidence of free returns.

The following comes from the product description of a comparable item. Seller does not guarantee its accuracy but provides it for reference:

he MultiMux MMH-Series statistical multiplexer consolidates up to eight data channels for transmission over one synchronous or asynchronous analog, ISDN or digital line. This multiplexer connects remote terminals and PCs to a central site legacy system. Features: - One sync/128K or async/115.2K composite link - Four or eight asyn/115.2K data channels - Support for analog, BRI ISDN, or DDS This multiplexer has a solid reputation as a reliable multi-user solution and is ideal for small to midsize companies that want to connect remote terminals and PCs to a central site legacy system. The MultiMux is a statistical time division multiplexer. It aggregates bandwidth allowing active users to share all of the available bandwidth, unlike frequency and time division multiplexers. Frequency and time division multiplexers dedicate a portion of the bandwidth to each user. So, even when a channel is active, the bandwidth cannot be used by others. Asynchronous devices gain improved accuracy when connected to MultiMux. Features supported by MultiMux include buffering, flow control, and pacing features. This means the MultiMux supports high traffic levels without compromising data integrity. In addition MultiMux can reduce your data communication costs by eliminating multiple data lines at one site and eliminating modems for each asynchronous device And scalable MultiMux architecture makes it easy to grow as your networking demands grow.