Patton electronics X.21 Manuel utilisateur

Marque: Patton electronics

Modèle: X.21

Taper: Manuel utilisateur

Ce manuel convient également à

INTERFACE CONVERTER, V.24 TO X.21

2021P

(CTS IC-V.24/X.21)

INSTALLATION AND OPERATIONS MANUAL

Doc#: 172001UA

Part#: 07M2021P-A

February 21, 2000

An ISO-9001

Certified Company

172001UA

Table of Contents

CHAPTER 1 - Operation

CHAPTER 2 - SETUP AND INSTALLATION

Installation....................................................................................2-1

Selection of DTE/DCE .................................................................2-1

Equipment Grounding .................................................................2-3

LED Indicators .............................................................................2-3

Factory Test Straps .....................................................................2-3

APPENDIX

TECHNICAL SPECIFICATIONS ................................................ A-1

X.21 Interface Pins Supported ................................................... A-2

V.24 Interface Pins Supported ................................................... A-2

172001UA

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: [email protected];

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no liability for losses incurred as a result of out-of-date or incorrect information contained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.

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 or modem. This interface converter can satisfy

all interface conversion requirements. This adapter is ideal for High Speed

Modems since it can operate at up to 128Kbps. Connection of two terminal

devices is not supported because internal clocking is not provided by this

device.

Devices can be separated up to 4000 feet away from the interface con-

verter on the balanced interface side and RS-232 devices can be separated

up to 50 feet away from the interface converter. The unit is supplied with a

female DB-25 for the RS-232 port and a female DB-15 for the CCITT X.21

port.

The interface converter is housed in a sturdy aluminum enclosure and has

an internal 110/220VAC switch selectable power supply. Sixteen of the

interface converters will also fit into the MCS-16 card rack for convenient

data center applications.

The unit can operate on standard power found in most countries.

IC-V.24/X.21

X.21 Modem

1-1

Typical Application

172001UA

CHAPTER 2 - SETUP AND INSTALLATION

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 to the power plug required in the country of use. Insure the

110/220VAC switch is set correctly for the line voltage in use prior to

applying power to the interface converter.

Selection of DTE/DCE

To connect an RS-232 terminal type device (DTE) to an X.21 Modem type

device (DCE), connect the terminal to J1 and the Modem to J2. Move

SW1 and SW2 to the DCE position, and SW3, SW4 and SW5 to the DTE

position, as shown in Fig. 1.

X.21 DCE V.24 DTE

RXD - 3

TX D - 2

RX C - 17

TXC - 15

S - 6, 13

T - 2, 9

R - 4, 11

X.21 DTE V.24 DCE

Buff er

RTS - 4 / DTR - 20C - 3, 10

CTS - 5 / DC D - 8

I - 5, 12

JP3JP2JP1 JP4

Power

SW1

X.21 INTERFACE

DCE DTE

Factory Test Straps

Must be Installed for Unit To

Operate Correctly

J1 (RS-232) Is a DCE, and

MUST Connect to a

Terminal (DTE)

J2 (X.21) Is a DTE, and

MUST Connect

to a Modem (DCE)

Signal

Chassis

Ground

SW2

SW3

X.21

RS-232

JP5

JP6

DTR /RTS

DCD / CTS

SW4

SW5

DCEDTE

V.24 INTERFACE

Figure 1.

*NOTE: All clocks in the communication system must be frequency locked. One and

only one clock must be selected as master for the system. All other clocks must be

2-1

Note: Hazardous voltages are present when the equipment cover is removed.

Installation and setup shall be performed by qualified service personnel only.

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.21 DTE

X.21 DCE V.24 DTE

TX D - 2

TXC - 15

RX C - 17

S - 6, 13

T - 2, 9 V.24 DCE

RXD - 3R - 4, 11

Buff er

RTS - 4 / DTR - 20

C - 3, 10

CTS - 5 / DC D - 8I - 5, 12

Power

Factory Test Straps

Must be Installed for Unit To

Operate Correctly

J1 (RS-232) Is a DTE, and

MUST Connect to a

Modem (DCE)

J2 (X.21) Is a DCE, and

MUST Connect

to a Terminal (DTE)

X.21

RS-232

JP3JP2

JP1 JP4

SW1

X.21 INTERFACE

DCE DTE

Signal

Chassis

Ground

SW2

SW3

JP5

JP6

DTR /RTS

DCD / CTS

SW4

SW5

DCEDTE

V.24 INTERFACE

Figure 2.

To connect a X.21 Modem type device (DCE) to an RS-232 Modem type

device (DCE), connect the X.21 Modem to J2 and the V.24 Modem to J1.

Move SW1, SW2, SW3, SW4 and SW5 to the DTE position, as shown in

Fig.3.

X.21 DCE

X.21 DTE V.24 DTE

TX D - 2

RXD - 3

RX C - 17

XT XC - 24

S - 6, 13

T - 2, 9

R - 4, 11

V.24 DCE

Buff er

RTS - 4 / DTR - 20

C - 3, 10 CTS - 5 / DC D - 8

I - 5, 12

172001UA

2-3

Power

Factory Test Straps

Must be Installed for Unit To

Operate Correctly

J1 (RS-232) Is a DTE, and

MUST Connect to a

Modem (DCE)

J2 (X.21) Is a DTE, and

MUST Connect

to a Modem (DCE)

X.21

RS-232

JP3JP2

JP1 JP4

SW1

X.21 INTERFACE

DCE DTE

Signal

Chassis

Ground

SW2

SW3

JP5

JP6

DTR /RTS

DCD / CTS

SW4

SW5

DCEDTE

V.24 INTERFACE

Figure 3

(Factory Default Setting)

Equipment Grounding

JP4 provides grounding interconnection in those systems requiring a

connection between Frame Ground and Signal Ground. If signal ground

and chassis ground interconnection is desired, install the jumper on JP4.

LED Indicators

The Following LED indicators are provided for diagnostics: Power, Transmit

Data (T), Receive Data (R), Control (C), Indicate (I) and Signal Timing (S).

Factory Test Straps

The Factory Test Straps JP1, JP2 and JP3 must be installed for proper

operation of the interface converter.

Signal Crossover

JP5 controls selection of DTR or RTS as the active V.24 control signal.

JP6 controls selection of the DCD or CTS as the active V.24 control signal.

The selection of DTE or DCE on the two interfaces will determine which

X.21 signal is connected to which V.24 control signal.

172001UA

A-1

APPENDIX

TECHNICAL SPECIFICATIONS

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

Balanced Physical Interface

Female DB-15 (V.11) Connector

DCE / DTE Configuration

Switch Selectable

Enclosure

Aluminum Shell or 1010R16/P/UI

(CTS MCS-16C) Card Rack

Assembly

Front Panel

Indicators: ... Power, Transmit

Data, Receive Data,

Control, Indicate,

Signal Timing

Power Requirements

110/220VAC, 50/ 60Hz, 0.16/

.08A, switch selectable Power

Supply

Environmental

Oper Temp: ...... 32° to 122°F (0°

to 50°C)

Rel Humidity: ... Up to 90% non-

condensing

Altitude: ...........0 to 10,000 feet

Dimensions

Height: .... 2.00 inches (5.08cm)

Width: ..... 8.80 inches (22.35cm)

Length:.... 9.80 inches (24.89cm)

Weight

2.25 lbs (1.02Kg)

172001UA

A-2

Shield (common)

Transmit(A) (from DTE)

Control(A) (from DTE)

Receive(A) (from DCE)

Indication(A) (from DCE)

Signal Timing(A) (from DCE)

GND (common)

Transmit(B) (from DTE)

Control(B) (from DTE)

Receive(B) (from DCE)

Indication(B) (from DCE)

Signal Timing(B) (from DCE)

X.21 Interface Pins Supported

Shield (common)

Transmit Data (from DTE)

Receive Data (from DCE)

Request to Send (from DTE)

Clear To Send (from DCE)

Data Set Ready (from DCE)

Signal Ground (common)

Data Carrier Detect (from DCE)

Transmit Clock (from DCE)

Receive Clock (from DCE)

Data Terminal Ready (from DTE)

External Transmit Clock (from DTE)

V.24 Interface Pins Supported

Sales: 301 975-1000 Support: 301 975-1007

Web Address: http://www.patton.com

7622 Rickenbacker Drive

Gaithersburg, MD 20879

Patton electronics X.21 Manuel utilisateur

Marque: Patton electronics

Modèle: X.21

Taper: Manuel utilisateur

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Patton electronics X.21 Manuel utilisateur

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Patton electronics X.21 Manuel utilisateur

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