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RA-64/128K
RATE ADAPTER
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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
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DESCRIPTION
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.
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SPECIFICATIONS
ARE SUBJECT
TO CHANGE
WITHOUT NOTICE
For further detailed
technical information
on this product,
contact East Coast
Datacom Technical
Assistance at
(321) 637-9922
or fax us at
(321) 637-9980
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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
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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
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Data Channel
Interfaces
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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
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Metal: Aluminum |
Power Source
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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
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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
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| Included with
each unit: |
1) Operations
Manual
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