Patton 2072 User Manual
Dos #: 180001UA
Part #: 07M2072-A
B
INTERFACE CONVERTER, G.703
2072
(CTS IC-G.703)
INSTALLATION AND OPERATIONS MANUAL
An ISO-9001
Certified Company
January10, 2000
Copyright© 2000 Patton Electronics Co., All Rights Reserved
180001UA
Table of Contents
CHAPTER 1 - Operation
CHAPTER 2 - SETUP AND INSTALLATION
Installation ..............................................................................................2-1
Selection of DTE/DCE ...........................................................................2-1
Equipment Grounding ............................................................................ 2-1
LED Indicators .......................................................................................2-1
Front Panel Loop Back Button ...............................................................2-1
Data Rate (SW5-3,4) .............................................................................2-2
Control Lead Pass Through / Async Channel (SW5-2) .........................2-2
Clear to Send (CTS) Control (SW4-6) ...................................................2-2
Auto Digital Loop Enable (SW5-5) ......................................................... 2-2
Loss of Signal or Control Lead to Carrier Detect (SW5-1)..................... 2-3
MARK Polarity (JP5, JP6)...................................................................... 2-3
Secondary Async Port CTS Forced of Follows RTS (JP4)....................2-3
Clocking Modes (SW4-1,2,3,4,5) ...........................................................2-3
Line Terminal Block ...............................................................................2-4
Factory Test Straps................................................................................2-4
APPENDIX
TECHNICAL SPECIFICATIONS ........................................................... A-1
Typical Application ................................................................................ A-1
Strapping Diagram ................................................................................ A-2
X.21 Interface Pins Supported .............................................................. A-3
V.24 Asynchronous Interface Pins Supported ...................................... A-3
V.35 Interface Pins Supported .............................................................. A-3
Rear Panel ............................................................................................ A-3
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PROPRIETARY NOTICE
The information contained herein is proprietary and confidential to Patton Electronics Co.
Any reproduction or redistribution of this publication, in whole or in part, is expressly
prohibited unless written authorization is given by Patton
Electronics Co.
SERVICE
All warranty and non-warranty 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 Services at:
Tel: (301) 975-1007;
email: support@patton.com;
or, Web: http://www.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 Patton MSDs. Technical Service hours:
8AM to 5PM EST, Monday through Friday.
PUBLICATION NOTICE
This manual has been compiled and checked for accuracy. The information in this manual
does not constitute a warranty of performance. Patton reserves the right to revise this
publication and make changes from time to time in the content thereof. Patton assumes
no liability for losses incurred as a result of out-of-date or incorrect information contained
in this manual.
RADIO AND TV INTERFERENCE
The Patton devices generate and use radio frequency energy, and if not installed and
used properly—that is, in strict accordance with the manufacturer’s instructions—may
cause interference to radio and television reception. The Patton devices have been
tested and found to comply with the limits for Class A computing devices in accordance
with the specifications in Subpart J of Part 15 of FCC rules, which are designed to
provide reasonable protection from such interference in a commercial installation.
However, there is no guarantee that interference will not occur in a particular installation.
If the Patton devices do cause interference to radio or television reception, which can be
determined by disconnecting the cables, the user is encouraged to try to correct the
interference by one or more of the following measures: moving the computing equipment
away from the receiver, re-orienting the receiving antenna, and/or plugging the receiving
equipment into a different AC outlet (such that the computing equipment and receiver are
on different branches).
Canadian EMISSIONS
This digital apparatus does not exceed the Class A limits for noise emissions from a
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
Le present appareil numerique n’emet pas de bruits redioelectriques depassant les limites
applicables aux appareils numeriques de la Class A prescites dans le Reglement sur le
brouillage redioelectrique edicte par le ministere des Communications du Canada.
Copyright© 2000 Patton Electronics Co., All Rights Reserved
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180001UA
CHAPTER 1 - Operation
The Patton 2072 (CTS IC-G.703) is a CCITT G.703 Co-Directional rate and
interface converter. Both CCITT V.35 and CCITT X.21 interfaces are
provided for. An M-34 connector for V.35 and a DB-15 connector for X.21
are located on the rear panel. The interface converter operates bidirectionally. DCE / DTE selection of the ports permits interfacing terminals or modems to the G.703 interface converter. This adapter is switch
selectable for 48Kbps, 56Kbps or 64Kbps data rates. When configured for
48Kbps or 56Kbps, it will provide an additional asynchronous service
channel.
The 2072 (CTS IC-G.703) can be clocked from the recovered clock of the
receive pair. Can be provided to the 2072 (CTS IC-G.703) by an attached
device externally or be generated by the 2072 (CTS IC-G.703) internally.
Elastic buffers are provided to compensate for the phase difference between clocks.
The 2072 (CTS IC-G.703) fully conforms to the G.703 CCITT standard by
performing the required “1’s density” bit stuffing every 7 bits. Additionally it
will pass a control signal from end to end or the 1200 bps asynchronous
service channel for enhanced line utilization.
A built in Burst Error Rate Tester (BERT) and both Analog and Digital Loop
Back allow the user flexibility in circuit verification and testing. When either
Loop Back button indicates
all signals pass normally through the 2072 (CTS IC-G.703). When either
Loop Back button indicates
2072 (CTS IC-G.703) implements digital and analog loop back of the data
BLACKBLACK
BLACK (OUT), that loop back is disabled and
BLACKBLACK
GREENGREEN
GREEN (IN), that loop back is enabled. The
GREENGREEN
PW TD RD L OS
DL AL TST RLB ERR SYN
RATING:
110/220
50/60Hz
250mA/160mA
ANA L OG
DIGITAL
LOOP
LOOP
RX TX
J3 J2 J1
1-1
INTERNATIONAL
SERIES
2072
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