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Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor. If any questions or problems
arise during installation or use of this product, please do not hesitate to
contact Patton Electronics Technical Support at (301) 975-1007.
2.1 FEATURES
• Provides DCE to DCE connection
• Two internal 64-bit buffers
• Synchronous data rates up to 64kbps
• No AC power required
• External configuration switches
• Ultra-miniature size
• Made in the USA
2.2 DESCRIPTION
The Patton Model 3002 Tail Circuit Buffer is a cost-effective
solution for the interconnection of two modem type devices that are
required to be connected in a tail ciruit configuration. Data is buffered
and re-clocked in both directions to insure data integrity when using two
modems that must be clocked independent of each other. The Model
3002 allows the user to connect a tail circuit to a DCE type device.
Modems, sharing devices or multiplexers that will not normally
accommodate a DCE type device, can have a tail-ciruit attached to a
sub-channel port through use of this device.
Clock phasing differences are compensated for by buffering the
data coming from the tail circuit into a 64 bit centered buffer. This gives
32 bits of clock slippage in both the positive and negative direcitons.
The 3002 can monitor the DCD interface lead from each of the
modem devices and optionally use the DCD signal (pin8) to recenter
the buffers to prevent the buffers from filling up during periods of
inactivity. Clocking rates up to 64kbps are possible while using the
3002. The unit is totally transparent to your data. For easy
configuration, the Model 3002 features a convenient set of external
configuration switches. These switches allow the user to control buffer
centering by enabling or disabling the carrier detect option.
Housed in an ultra-miniature ABS plastic case, the Model 3002
comes equipped with two DB-25 female connectors.
Synchronous operation in both Half Duplex and Full Duplex
operation is fully supported. Carrier Detect signaling can be used to re-
center the ring buffers. All cabling crossover is done in the Model 3002,
allowing utilization of standard "Straight Through" cables for all
interconnections.
2.0 GENERAL INFORMATION
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