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Patton electronic X.21 manual

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Table of contents for the manual

  • Page 1

    I NTERFACE C ONVERTER , V .24 TO X.21 2021P (CTS IC-V .24/X.21) I NST ALLA TION AND O PERA TIONS M ANUAL Doc#: 172001UA Part#: 07M2021P-A B February 21, 2000 An ISO-9001 Certified Company Copyright© 2000 Patton Electronics Co., All Rights Reserved[...]

  • Page 2

    172001UA i T able of Contents CHAPTER 1 - Operation CHAPTER 2 - SETUP AND INST ALLA TION Installation .................................................................................... 2-1 Selection of DTE/DCE ................................................................. 2-1 Equipment Grounding ................................................[...]

  • Page 3

    172001UA ii 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 [...]

  • Page 4

    172001UA CHAPTER 1 - Operation The Patton 2021P (CTS TCB-V.24/X.21) is an EIA RS-232 to CCITT X.21 interface converter with a built in tail circuit buffer, allowing modem to modem interconnection. The interface converter operates bi-directionally. DCE / DTE selection of each port permits interfacing an RS-232 terminal or modem to an X.21 terminal o[...]

  • Page 5

    172001UA CHAPTER 2 - SETUP AND INST ALLA TION Installation Set the switches to match the required configurations based on the diagrams below. The cabling between each device and the interface converter must be terminated with male connectors. J1 is the RS-232 / V.24 interface and J2 is the X.21 interface. The IEC connector is provided to interface [...]

  • Page 6

    172001UA 2-2 slaved to this clock. To connect a X.21 terminal type device (DTE) to an RS-232 Modem type device (DCE), connect the terminal to J2 and the Modem to J1. Move SW1 and SW2 to the DTE position, and SW3, SW4 and SW5 to the DCE position, as shown in Fig.2. X.2 1 D TE X.2 1 DCE V.24 DTE TX D - 2 TX C - 1 5 RX C - 1 7 S - 6, 1 3 T - 2, 9 V. 2[...]

  • Page 7

    172001UA 2-3 I Po wer T S R J3 C Fa cto ry Tes t Stra ps Mu st be Ins tall ed f o r U nit To O per at e C or re ct ly J1 (RS- 23 2) Is a DTE, an d MU ST Co nn ec t t o a Mo de m (D CE) J 2 ( X.2 1) Is a D TE, a nd MU ST C o n ne ct t o a M o dem ( DC E) J2 X. 2 1 J1 RS- 23 2 JP 3 JP 2 JP 1 JP4 SW1 X.2 1 I NTER FA CE DC E D TE Sig n al to Ch a ssi s[...]

  • Page 8

    172001UA A-1 APPENDIX TECHNICAL SPECIFICA TIONS Applications RS-232 to CCITT X.21 interface conversion Capacity One RS-232 Channel One CCITT X.21 Channel Buffer Bidirectional 8-bit ring buffer Data Format Transparent to Data Data Rates Up to 128Kbps Electrical Interface RS-232 and V.11 RS-232 Physical Interface Female DB-25 (V.24) Connector Balance[...]

  • Page 9

    172001UA A-2 Shield (co mmon) Tr a ns m it (A) (f ro m DT E ) Con tro l( A) ( fro m DTE ) Rece ive(A) (from DCE) Ind ic ati o n(A ) (fr om DCE) Si g na l T i min g(A ) (f r o m DC E) GND (c omm on ) Tr a ns m it (B) (f ro m DT E ) Con tro l( B) ( fro m DTE ) Rece ive(B) (from DCE) Ind ic ati o n(B ) (fr om DCE) Si g na l T i min g(B ) (f r o m DC E[...]

  • Page 10

    B Sales: 301 975-1000 Suppor t: 301 975-1007 W eb Address: http://www .patton.com 7622 Rickenbacker Drive Gaithersburg, MD 20879[...]