RA-64/128K RS-232 Async Rate Adapter to High Speed Sync Communications Link can also support V.35 Interface

Features/Benefits

• Interface - Async is RS-232 Sync is RS-422, RS-530, X.21 or V.35
  
• Data Rates - Async is 9.6kbps, 19.2kbps, 38.4kbps, 57.6kbps or 115.2kbps
  
• Sync is 64kbps or 128kbps
  
• Allows low speed async terminals to access high speed 64k or 128k sync circuits
  
• Compact and easy to install
  
• Line powered from data interfaces
  
• Sturdy Metal Enclosure
  

The RA-64/128K Rate Adapter allows low speed async RS-232 DTE equipment to transmit over a high speed 64k or 128k sync communications link. The RA-64/128k devices are used in pairs, one at each end of the communications link or in multiples as when used in a multi-point or broadcast communications link. The RA-64/128k will support bi-directional or simplex data transmissions.

The RA-64/128k supports async character length of 8, 9, 10 and 11 bits, including the start and stop bit. The asynchronous interface is RS-232 and supports data rates of 9.6kbps, 19.2k, 38.4k, 57.6k or 115.2k. The synchronous data interface rate must be set at 64k or 128k and will support data interfaces of X.21, RS-422, RS-530 or optional V.35.

The RA-64/128k will support V.35 by ordering the unit under part number 147000. The V.35 data interface will support both the old V.35 (+/-0 .5 volts) or newer V.35 (ITU recommendation V.11) ground to +3.8 volts. A DB-25 male to V.35 male 6 foot adapter cable is required for V.35 termination. The cable should be ordered under part number 712005.

The RA-64/128k derives its power through the async and sync data interfaces. The device utilizes leading edge technology for reliable, low power operation. The user should insure that the RA-64/128k has a minimum of three synchronous control signals available for proper operation.

The RA-64/128k is housed in a sturdy metal enclosure, has a three year warranty and a 24 hour turnaround on warranty repairs.

Specifications Application Interconnection of a low speed asynchronous terminal or DTE device operating at 9.6k, 19.2k, 38.4k, 57.6k or 115.2k to a synchronous 64k or 128k modem or DCE device Capacity One terminal(DTE) and one modem(DCE) Data Rates Async: 9.6k, 19.2k, 38.4k, 57.6k or 115.2k Sync: 64k or 128k Data Channel Interfaces Async: RS-232 Sync: RS-422, X.21, RS-530 and V.35 Switches Internal Switches for Baud Rate, Character Length and Crystal setting Enclosure Metal: Aluminum Power Source Line powered from data interfaces Requires minimum of 3 control signals Line Requirements Four Wire private, unloaded with no bridge taps Environmental Operating Temperature....32º to 122º F (0º to 50º C) Relative Humidity.............5 to 95% Non-Condensing Altitude............................0 to 10,000 feet Dimensions Height ....... 0.50 inches (1.27 cm) Width ........ 1.75 inches (4.44 cm) Length ....... 3.90 inches (9.91 cm) Weight 1/2 pound (0.225 Kg) Warranty Three Years, Return To Factory Ordering Information Model: RA-64/128k_V11 Part Number: 146000 Description: RS-232 Async(19.2k, 38.4k, 57.6k &115.2k to V.11 sync 64k or 128k Rate Adapter * V.11 supports RS-422, X.21 and RS-530 Options for RA-64/128k_V11: Part Number:712014 Description:6 ft.,DB-25 to X.21 adapter cable Part Number:712015 Description:6 ft.,DB-25 to RS-422 adapter cable Model: RA-64/128k_V35 Part Number: 147000 Description: RS-232 Async(19.2k, 38.4k, 57.6k & 115.2k to V.35 sync 64k or 128k Rate Adapter Options for RA-64/128k_V35: Part Number:712005 Description:6 ft.,DB-25 to V.35 adapter cable Included with each unit: 1) Operations Manual