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USER
MANUAL

MODEL 222N9

Ultra-miniature RS-232
(EIA-574) to RS-422
Interface Converter

SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
http://www.patton.com

Part #07M222N9-B
Doc. #030013U,
Rev. C
Revised 1/21/08

C E R T I F I E D

An ISO-9001

Certified Company

Copyright © 1997

Patton Electronics Company

All Rights Reserved

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Summary of Contents for 222N9

Page 1: ... miniature RS 232 EIA 574 to RS 422 Interface Converter SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M222N9 B Doc 030013U Rev C Revised 1 21 08 C E R T I F I E D An ISO 9001 Certified Company ...

Page 2: ...used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception The Model 222N9 has been tested and found to comply with the limits for a Class A computing device 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 commercia...

Page 3: ...ntainer This number may be obtained from Patton Electronics Technical Service at 301 975 1007 http www patton com or 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 222N9 Technical Service hours 8AM to 5PM EST Monday thr...

Page 4: ...onous PCs terminals and laptops employing the EIA 574 RS 232 DB 9 interface to communicate with devices using RS 422 balanced electrical signals Facilitating bi directional data conversion over two twisted pair the Model 222N9 draws all necessary operating power from data and control voltages on the EIA 574 interface The Model 222N9 supports data rates to 19 2 Kbps and distances to 4000 feet All c...

Page 5: ...e Model 222N9 is available with several different physical interfaces on the RS 422 side RJ 11 jack RJ 45 jack and terminal blocks with strain relief 3 1 1 TWISTED PAIR CONNECTION USING RJ 11 OR RJ 45 The RJ 11 and RJ 45 connectors on the Model 222N9 s twisted pair interface are pre wired for a standard TELCO wiring environment The signal pin relationships are shown below RJ 11 SIGNAL RJ 45 SIGNAL...

Page 6: ...ng pages will tell you how to open the case connect the bare wires to the terminal blocks and fasten the strain relief collar in place so that the wires won t pull loose Note The terminal block configurations are different for the 222N9M male and 222N9F female 1 Open the unit by gently inserting a screw driver between the DB 9 connector and the lip of the plastic case See below You don t have to w...

Page 7: ... the outer insulation from the twisted pairs about one inch from the end 3 Strip back the insulation on each of the 2 twisted pair wires about 25 4 Connect one pair of wires to XMT and XMT transmit positive and negative on the terminal block making careful note of which color is positive and which color is negative 6 ...

Page 8: ...We recommend connecting the shield at the computer end only to avoid ground loops A ground wire is not necessary for proper operation of the Model 222N9 7 When you finish connecting the wires to the terminal block the assembly should resemble the diagram below 8 Place the 2 halves of the strain relief assembly on either side of the telephone wire and press together very lightly Slide the assembly ...

Page 9: ...train relief Call Patton s Sales Department at 301 975 1000 10 BEND the top half of the case as necessary to place it over the strain relief assembly Do not snap the case together yet 11 Insert one captive screw through a saddle washer and then insert the captive screw with the washer on it through the hole in the DB 25 end of the case Snap that side of the case closed Repeat the process for the o...

Page 10: ... to the DTE device make sure that it is a straight through cable of the shortest possible length we recommend 6 ft or less 3 3 OPERATING THE MODEL 222N9 Once the Model 222N9 is properly installed it should operate transparently as if it were a standard cable connection Operating power is derived from the EIA 574 data and control signals there is no ON OFF switch All data from the EIA 574 interface...

Page 11: ...erminal raises DTR Pin 4 Transmit Line 4 wire unconditioned line 2 twisted pairs Transmit Mode Full Duplex 4 wire Transmit Level 0 dBm Line Connection RJ 11 or RJ 45 jack or 5 screw terminal posts 4 wires and 1 ground and a strain relief insert Works well with data signals only Power Supply None required uses ultra low power from EIA data and control signals Surge Protection Compliant with IEC 801...

Page 12: ... optimum performance from the Model 222N please keep the following guidelines in mind Always use twisted pair wire this is not an option Use twisted pair wire with a capacitance of 20pf ft or less Avoid twisted pair wire thinner than 26 AWG i e avoid higher AWG numbers than 26 Use of twisted pair with a resistance greater than the above specifications may cause a reduction in maximum distance obta...

Page 13: ...ive Data 3 XMT Transmit Data 4 XMT Transmit Data 5 RCV Receive Data 6 G Ground RJ 45 8 Pin SIGNAL PIN 1 no connection 2 G Ground 3 RCV Receive Data 4 XMT Transmit Data 5 XMT Transmit Data 6 RCV Receive Data 7 G Ground 8 no connection 1 Receive Line Signal Detector 2 Received Data 3 Transmitted Data 4 Data Terminal Ready 5 Ground common Return DCE DTE DCE DCE DCE DCE DTE DTE Common Data Set Ready 6...

Page 14: ...APPENDIX D PATTON MODEL 222N9 BLOCK DIAGRAM 13 ...

Page 15: ...mail support patton com Phone Sales 301 975 1000 Phone Support 301 975 1007 Fax 301 869 9293 Mail Patton Electronics Company 7622 Rickenbacker Drive Gaithersburg MD 20879 USA We are committed to a quality product at a quality price Patton Electronics is ISO 9001 certified We meet and exceed the highest standards in the industry CE UL etc It is our business to serve you If you are not satisfied wit...

Page 16: ...C An Certif Copyright 1997 Patton Electronics Company All Rights Reserved ...

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