ORDERING

MIC-24T/21CMiniature Interface Converter

Specifications are subject to change without prior notice.

247-100-04/99

1999 RAD Data Communications Ltd.

Miniature InterfaceConverter,V.24 DTE to X.21 DCE

MIC-24T/21C

FEATURES

• Converts between V.24/RS-232 DTEand X.21 DCE

• Operates at data rates up to 200kbps

• Has a built-in buffer to accommodatephase differences between thereceive and transmit clocks of theDCE

• No external power required

• Easy to install

• Miniature, lightweight

APPLICATION

DESCRIPTION • MIC-24T/21C Miniature Interface

Converter, converts between DTEs withtheV.24/RS-232 interface and DCEs with theX.21 interface at data rates up to 200kbps (see Figure 1 for the data flowdiagram).

• MIC-24T/21C performs both physical andelectrical conversion between the twointerfaces. The circuitry is designed toprovide short range interface, i.e. forconnection of co-located devices

• MIC-24T/21C has a built-in buffer toaccommodate phase differences betweenthe receive and transmit clocks of theDCE.

• No AC power is required. The device usesultra-low power derived from the DTE andDCE data and control signals.

SPECIFICATIONS

• Data RatesUp to 200 kbps

• Transmission FormatSynchronous (transparent to protocol)

• Interface ConnectorsDTE: V.24/RS-232, 25-pin, maleDCE: X.21, 15-pin, male

• Cable Length2m / 6.5 ft

• PowerNo AC power required; uses ultra-lowpower derived from the DTE and DCEdata and control signals

• PhysicalLength: 110 mm / 4.3 inWidth: 53 mm / 2.1 inHeight: 22 mm / 0.9 inWeight: 220g / 7.7 oz(including cable and connector)

• EnvironmentTemperature: 0-50°C / 32-122°FHumidity: Up to 90%,

non-condensing

11

V.24 (D TE )M ale

X .21(D CE )M ale

Shie ld Protec tiveG N D

Signa l G N D

7 8

10

3

S igna l G N D

C -b

C -a

+

+

+

12

11

9

13

5

4

2

6

I-b

R -b

T -b

S-b

I-a

R -a

T -a

S-a

RT S

C TS 5

4

T C

R C 17

15

D SR

D TR 20

6

D CD

R D

T D

8

3

2

Figure 1. Data Flow through MIC 24T/21C

Declaration of Conformity

Mfr. Name: RAD Data Communications Ltd.Mfr. Address: 12 Hanechoshet St.

Tel Aviv 69710Israel

declares that the product:

Product Name: MIC-24T/21C

Conforms to the following standard(s) or othernormative document(s):EMC: EN 55022 (1987): Limits and

methods of measurement of radiodisturbance characteristics ofinformation technology equipment.EN 50082-1 (1992):Electromagnetic compatibility -Generic immunity standards forresidential, commercial and lightindustry.

Supplementary Information:The product herewith complies with therequirements of the EMC Directive 89/336/EEC.The product was tested in a typical configuration.

Tel Aviv, December 28th, 1995

Haim KarshenQuality Manager

European Contact: RAD Data CommunicationsGmbH, Lyoner Strasse 14, 60528 Frankfurt amMain, Germany

INSTALLATION

Installation of MIC-24T/21C is straightforwardand simple, no strapping adjustments arerequired.

Proceed as follows:

1. Plug the V.24 connector directly into theDTE.

2. Plug the X.21 connector directly into theDCE.

MIC-24T/21C is ready to operate.