2.0 GENERAL INFORMATION
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 arise during
installation or use of the 2400, contact Patton Electronics Technical
Support at (301) 975-1000.
2.1 FEATURES
• Synchronous data rates of 56 or 64 Kbps
• Full duplex communication over two dedicated twisted pairs
• Supports distances to 3.4 miles (5.5 km) over 26 AWG
(.4 mm)wire
• Selectable internal, external, network receive recover, or
campus clock options
• Built-in V.54 loopback tests and V.52 BER test patterns
• Works with 56 Kbps DDS, 64 Kbps Clear Channel, or private
twisted pair circuits
• Switchable Circuit Assurance feature
• Seven front panel LEDs monitor power, communication and test
status
• RJ-48S jack provided for line connection
• RS-232 version has a DB-25 connector
• V.35 version has an M/34 connector
• Ultra-compact enclosure fits in tight spaces
2.2 DESCRIPTION
The Model 2400 DDS & Clear Channel CSU/DSU is a miniature
CSU/DSU that is designed for 56 kbps or 64 kbps Clear Channel
communications over a synchronous DDS circuit -- or over dedicated
twisted pair. The Model 2400 also supports distances up to 3.4 miles
(5.5 km) over a dedicated twisted pair circuit.
The Model 2400 provides switch selectable timing options of
internal, external, and network receive-recovered clock. Connecting
directly to the RS-232/V.24 (Model 2400/A) or V.35 (Model 2400/C)
port, the ultra-compact Model 2400 attaches without using additional
cables.
The Model 2400’s built-in V.54 loopback test modes and V.52 BER
test patterns are accessed using two front panel switches. Seven LEDs
monitor power, test modes and communication status. Twisted-pair line
connections are facilitated by a modular RJ-48S jack on the rear of the
unit.
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3.0 CONFIGURATION
The Model 2400 is easy to install and is ruggedly designed for
excellent reliability. The following instructions will help you set up and
install the Model 2400 properly.
Both versions of the Model 2400 use a mini DIP switch package
and jumper strap that allow configuration to a wide range of
applications. To configure the Model 2400 for use in your application,
you must first configure the unit. To do so, first open the case by
inserting a flat head screw driver into an open slot on either side of the
case, as in Figure 1.
Twist the screw driver head slightly and the top half of the case will
separate from the lower half, as in Figure 2. You now have access to
the internal switches used to configure the unit.
After opening the case, please refer to Sections 3.1 and 3.2 to set
the configuration switches and jumpers.
To close the case, fit the 2 halves together snugly and snap them
back in place.
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Figure 1. How to Use a Small Flathead Screwdriver to Begin to Open the Model 2400 Case
Figure 2. How to Use a Small Flathead Screwdriver to Finish Opening the Model 2400 Case
