Black Box IC940A-F Bedienungsanleitung

CUSTOMER

SUPPORT

INFORMATION

Call our Technical Support Specialists to discuss your application.

For 24-hour technical support: Call (412) 746-5500 or Fax: 1-800-321-0746

To order: Call (412) 746-5500 8:00 A.M. to 8:00 P.M. EST

Mail order: Black Box Corporation, P.O. Box 12800, Pittsburgh, PA 15241

JANUARY 1995

IC940A-F

IC940A-M

V.35/X.21 Bi-Directional

Interface Converter

000

V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER

Contents

Chapter Page

1. Specifications....................................................................................3

2. Introduction.....................................................................................4

3. Installation .......................................................................................5

000

V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER

1. Specifications

Cable length between connectors

—

6.5 ft. (1.9 m)

Power

—interface-powered V.35

pins C, D, E, or F or X.21 pins 3,

10, or 15

Size

—V.34 connector: 0.9"H x 2"W

x 2.5"D (2.3 x 5.1 x 6.4 cm),

DB15 connector: 1"H x 1.8"W x

2.8"D (2.5 x 4.6 x 7.1 cm)

Weight

—0.9 lb. (0.4 kg)

Data Rates

—Up to 2048 kbps

Transmission Format

—

Synchronous, transparent to

protocol

Transmission Mode

—Full-duplex

Temperature

—32° to 122° F

(0° to 50° C)

Humidity

—Up to 90%,

noncondensing

Interface Connections

—

V.35: IC940A-M M/34 male

(configured as DCE),

IC940A-F M/34 female

(configured as DCE);

X.21: IC940A-M, IC940A-F:

DB15 male (configured as DTE)

000

V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER

2. Introduction

The V.35/X.21 Bi-Directional

Interface Converter performs bi-

directional conversion of both the

physical and electrical specifications

of a V.35 device to those of an X.21

device.

Two models are available for

connecting a V.35 DTE to an X.21

DCE:

• IC940A-M: Male V.35 (DCE) to

Male DB15 (DTE)

• IC940A-F: Female V.35 (DCE)

to Male DB15 (DTE)

000

V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER

3. Installation

There are no internal jumpers or

switch setting to configure. The

converter is transparent to baud

rate and protocol and contains only

passive components.

A typical application appears in

Fig. 3-1

Choose a location so that you can

connect the devices directly to the

converter. The units are designed

to operate over short distances. We

do not recommend attaching

additional cables to the ends of the

converter.

Connect the M34/V.35 DCE

connector directly to the DTE

equipment. Connect the

DB15/X.21 connector directly to

the DCE equipment.

Fig. 3-1. Typical Application.

Bridge

V.35

M/34 X.21

DB15

X.21 Modem

000

V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER

Fig. 3-2. Pins Supported.

IC940A

V.35 DCE/X.21 DTE

Schematic Diagram

V.35 (DCE)

FEMALE/MALE X.21 (DTE)

MALE

Signal GND Signal GNDB8

RTS C-aC3

C-b10

CTS D

DSR E

DCD 1-aF5

TC-a S-aY6

TC-b S-bAA 13

RC-a V

RC-b X

TD-a T-aP2

TD-b T-bS9

RD-a R-aR4

RD-b R-bT11

1-b12

P.O. Box 12800 • Pittsburgh, PA 15241 • (412) 746-5500 • Fax (412) 746-0746

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