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USER
MANUAL

MODEL 2017RC

Miniature RS-232 to 20mA
Current Loop Converter:
Dual Port Rack Mount Card

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

Part# 07M2017RC

-B

Doc# 073062U, Rev. C
Revised 1/22/08

C E R T I F I E D

An ISO-9001

Certified Company

Dear Valued Customer,

Thank you for purchasing Patton Electronics products!   We do

appreciate your business.  I trust that you find this user manual helpful.  

We manufacture one of the widest selections of data

communications products in the world including CSU/DSU's, network
termination units, powered and self-powered short range modems, fiber optic
modems, interface converters, baluns, electronic data switches, data-line surge
protectors, multiplexers, transceivers, hubs, print servers and much more.  We
produce these products at our Gaithersburg, MD, USA, facility, and can
custom manufacture products for your unique needs.

We would like to hear from you.  Please contact us in any of the

following ways to tell us how you like this product and how we can meet your
product needs today and in the future.  

Web:               

http://www.patton.com

Sales E-mail:      

[email protected]

Support E-mail:    [email protected]
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 with any

aspect of this product or the service provided from Patton Electronics or its
distributors, please let us know.  

Thank you.

Burton A.Patton
Vice President

P.S.  Please tell us where you purchased this product
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Summary of Contents for 2017RC

Page 1: ...S 232 to 20mA Current Loop Converter Dual Port Rack Mount Card SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2017RC B Doc 073062U Rev C Revised 1 22 08 C E R T I F I E D An ISO 9001 Certified Company ...

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Page 3: ...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 at 301 975 1007 http www patton com or support patton com Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to an...

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Page 5: ...y closed current loop the transmitter or the receiver acts as the active current source while the other of the two must be passive To configure the Model 2017RC active passive modes you must first determine whether the transmitter should be active or passive The active passive switches are used to control the mode of the 20mA transmitters Each converter on the dual port card has one switch As Figu...

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Page 7: ...d Straps JB1 and JB2 Receiver Impedance In the normal setting JB1 and JB2 are positioned on posts 1 and 2 The Normal setting is best suited for applications in which two Model 2017RCs are used together The low impedance setting may improve performance with other current loop devices JB1 Position 1 2 Normal default Position 2 3 Low Receiver Impedance JB2 Position 1 2 Normal default Position 2 3 Low...

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Page 9: ...2 Position 1 2 Line A Shield Connected to Frame Ground Position 2 3 No Shield JB4 Position 1 2 Line B Shield Connected to Frame Ground Position 2 3 No Shield SGND FRGND JB5 In position 1 2 this strap links signal ground and frame ground through a 100 Ohm 1 2 W resistor In position 2 3 pin 1 is not connected to frame ground JB5 Position 1 2 SGND and FRGND Connected Position 2 3 SGND and FRGND Not C...

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Page 11: ...d and transported conveniently 4 1 1 THE RACK POWER SUPPLY The power supply included in the Model 1000R16 rack uses the same mid plane architecture as the modem cards The front card of the power supply slides in from the front and the rear card slides in from the rear They plug into one another in the middle of the rack The front card is then secured by thumb screws and the rear card by convention...

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Page 13: ... 2017RC or a compatible 20mA device Dial up analog circuits like those in a standard Hayes type modem are not acceptable For further information see Appendix B 4 4 1 POINT TO POINT TWISTED PAIR CONNECTION The 6 position RJ 11 and 8 position RJ 45 jack options for the Model 2017RC always the upper jack on the rear interface card are prewired for a standard TELCO wiring environment Pin descriptions ...

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Page 15: ...a indicates status of transmit data from the DTE Red indicates a mark or idle state Green indicates a space or active state RD Receive Data indicates status of receive data from the DCE Red indicates a mark or idle state Green indicates a space or active state 5 2 POWER UP There is no power switch on the Model 2017RC Power is automatically applied to the 2017RC when its card edge connector touches...

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Page 17: ...ose tested but to reduce the potential difficulties in the field one should ensure that the cable being used has similar or better characteristics lower capacitance or lower resistance Wire with capacitance of 20pF ft or less is suitable for all our Short Range Modems however distances may vary from those published in our catalog Resistance will also affect distance but not functionality Wire shou...

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Page 19: ...SR 3 109 Received Line Signal Indicator CD 4 108 2 DTE Ready DTR 5 102 Signal Common 6 104 Received Data 7 103 Transmitted Data 8 106 Clear to Send 9 105 133 Request to Send Ready for Receiving 10 N A Not Used Pins 2 9 conform to the EIA TIA 561 eight position non synchronous interface standard For all modular jacks 6 8 or 10 position Pin 1 is always toward the bottom when the rear card is oriente...

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