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UDS SW56 II Switched
56 DSU
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The UDS Motorola SW56 II, combining a DSU and CSU in one unit, operates at all DDS line rates.
The front panel keypad simplifies dialing and operation.
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Combines DSU and CSU in one
unit
Operates on switched digital
networks or on conventional DDS networks
operates at all DDS line
rates - 2400 bps to 56 Kbps including 19.2 Kbps
Rate adapts DTE data rates at
56 Kbps
Choice of EIA-232D, V35, or
EIA-530 data port interfaces
Automatic line equalization
Convenient front panel LCD control
Keypad and function keys for
easy operation Saves
operating configuration to
nonvolatile memory Number directory holds ten
32-digit numbers with 16
character description Universal Data Shelf compatible
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Description
Combining the functions of a Data Service Unit (DSU) and a Channel Service Unit (CSU), the high-speed and versatile
UDS Motorola SW56 II is designed to be used on the ATT ACCUNET or US Sprint switched digital networks as well as conventional digital networks. The SW56 II meets all specifications outlined in Bell Publications 62310, 41458, and 41450.
With six status LEDs, a 32-character alphanumeric LCD, hexadecimal keypad, and five function keys, the SW56 II is remarkably easy to operate. Operating parameters are readily observed and changed through the LCD menus and function keys.
The SW56 I I can operate over the full range of DDS line rates from 2400 bps to 56000 bps. When connected to a 56K bps digital line, the SW56 II can adapt DTE data rates from 2400 to 19200 bps to the 56K line in either synchronous or asynchronous format.
When operating over the ACCUNET or Sprint switched digital networks, the SW56 II can accept dialing information from either the dialer port or the front panel. All calls are originated using specified pulse-dialing techniques with call progress information and echo-cancellation used on the Sprint network. Incoming
and call progress information can be monitored by speaker.
A receiver automatic line equalizer compensates for distortion and attenuation caused by DDS line length.
The SW56 II has interchangeable DTE interface cards that allow a choice of EIA232D, EIA-530, or V.35 interfaces with the DTE and should be specified when ordered.
Test Functions
The SW56 II has a number of diagnostic tests available for troubleshooting problems. To simplify operation, the LCD menu displays only the tests available in the current configuration.
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Industrial grade CSU/DSU
ARC ELECTRONICS
301-924-7400 EXT 25 / 301-924-7400 EXT 25 / fax 301-924-7403
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