Patton electronic 2070 ユーザーズマニュアル

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1.2 CE NOTICE
The CE symbol on your Patton Electronics equipment indicates
that it is in compliance with the Electromagnetic Compatibility (EMC)
directive and the Low Voltage Directive (LVD) of the Union European
(EU).  A Certificate of Compliance is available by contacting Technical
Support.
1.3 SERVICE
All warranty and nonwarranty repairs must be returned freight
prepaid and insured to Patton Electronics.  All returns must have a
Return Materials Authorization number on the outside of the shipping
container.  This number may be obtained from Patton Electronics
Technical Service: (301) 975-1007, http://www.patton.com;
support@patton.com.  
NOTE: Packages received without an RMA number will not be
accepted.
Patton Electronics’ technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Model 2070.  Technical Service hours:  8AM to 5PM EST, Monday
through Friday.
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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 or problems
arise during installation or use of this product, please do not hesitate to
contact Patton Electronics Customer Service at (301) 975-1007.
2.1  FEATURES
• Bi-directionally converts V.24, X.21 or V.35 to co-directional G.703 
• Operates at 64 kbps synchronous data rate
• LED indicators monitor Test Mode and Synchronization
• Internal, external or network clocking options (External clocking on
V.24 and V.35 versions only)
• Test Mode controlled by switch or by local DTE (V.24 and V.35
Versions Only)
• Complies with CCITT/ITU G.823 Jitter Control Specifications
• Built-in surge protection and transformer isolation
• Point-to-Point distance up to 5250 ft (1600m) on 24 AWG twisted
pair
• 120 ohm (twisted pair) network termination
2.2  DESCRIPTION
The Patton Model 2070 Miniature Interface Converters allow a
synchronous V.24, V.35, or X.21 device to communicate bi-directionally
over the G.703 co-directional PCM network.  Supporting internal,
external DTE timing or G.703 network generated timing, the Model
2070  is perfect for networking applications that  require a single 64
kbps data channel.   
The  Model 2070 connects directly to the synchronous DTE using
a  DB-25 connector (Model 2070/Ax), an M/34 connector (Model
2070/Cx) or a DB-15 connector (2070/Dx).  A 120 ohm twisted pair
telephone port provides the interface for the G.703 network.
Additionally, 75 ohm terminations can be made using the Patton Model
460 (G.703 balun). 
Diagnostics include Local Loopback and G.703 Loopback testing.
Synchronous clock jitter is attenuated in accordance with  the G.823
specification.
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