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V.24/X.21 AND X.21/V.24 INTERFACE CONVERTERS

1. Specifications

Speed —

Up to 200 Kbps

Length —

6.5 feet (2 m)

Operation —

Synchronous, full- or half-duplex

Interfaces —

RS-232C/V.24, X.21

Connectors —

IC933A: (1) DB25 (male) DTE,
(1) DB15 (male) DCE;
IC944A: (1) DB25 (male) DCE,
(1) DB15 (female) DTE

Power —

6.3 volts DC (35 mw) from pin 2,
4, or 20 of the RS-232 interface

Size —

0.9"H x 2.1"W x 4.3"D
(2.2 x 5.5 x 9 cm)

Weight —

0.8 lb. (0.4 kg)

Содержание V.24/X.21

Страница 1: ...INFORMATION Order toll free in the U S 24 hours 7 A M Monday to midnight Friday 877 877 BBOX FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black...

Страница 2: ...2 m Operation Synchronous full or half duplex Interfaces RS 232C V 24 X 21 Connectors IC933A 1 DB25 male DTE 1 DB15 male DCE IC944A 1 DB25 male DCE 1 DB15 female DTE Power 6 3 volts DC 35 mw from pin...

Страница 3: ...CONVERTERS 2 Features Converts RS 232 V 24 to X 21 interface and vice versa Equipped with cable and connectors Transparent to protocol Installs immediately Operates without AC power Compact and light...

Страница 4: ...s from X 21 DTE to V 24 DCE Users can take advantage of high speed trunk lines with X 21 interfaces and still use existing V 24 multiplexers modems and terminals The compact lightweight conversion uni...

Страница 5: ...21 modem and Model IC944A installs between an X 21 terminal or multiplexor and a V 24 modem Figures 4 1 and 4 2 illustrate these applications Figure 4 1 Typical Application of the IC933A Figure 4 2 T...

Страница 6: ...the X 21 device DCE 5 2 Installing the X 21 DTE V 24 DCE IC944A Model To install the unit simply plug its DB15 female connector into the DB15 male connector on the X 21 device DTE Attach the unit s D...

Страница 7: ...7 V 24 X 21 AND X 21 V 24 INTERFACE CONVERTERS 6 Pinning Diagrams Figures 6 1 and 6 2 show the pinning of each unit...

Страница 8: ...Figure 6 1 IC933A Pinning RTS 4 10 3 C b C a CTS V 24 DTE X 21 DCE Schematic Diagram V 24 DTE X 21 DCE DB25 Male DB15 Male DCD TC RC TD RD 8 15 17 2 3 12 5 13 6 9 2 11 4 I b I a S b S a T b T a R b R...

Страница 9: ...a C b C a S b S a T b T a R b R a Shield Signal GND RTS DCD TC RC TD RD 4 8 15 17 2 3 6 9 2 11 4 X 21 DTE V 24 DCE Schematic Diagram Protective GND 1 Signal GND 7 DSR DTR 20 Ck In Data In Ck In Data...