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Anslutning

According to MA-12AC, exept power supply

Connection no.

Power supply

1

+ Voltage

2

– Voltage

3

11

6012-2001

MA-12 DC

Specifications

Switch settings

According to MA-12AC

Power supply

12-36V DC

Power consumption

Max 3W

Insulation

1000V

Fuse F1

1,6A fast 5x20 mm

All other specifications according to MA-12 AC

1 2 3 4 5

1 2 3

POWER

12–36V DC

LINE

CONNECTION

V.24/RS-232-C

CONNECTION

Transmission range (interface 2)

Cable

Transmission rate bit/s

42pF/m

600

1200

2400

4800

9600

19200

38400

0,3mm

2

18000 m

12000 m

8000 m

5000 m

2500 m

1000 m

500 m

Line connection

1)  If shielded cable is used, connect the shield only at one end to avoid ground currents.

MA-12

Receiver

1

2

3

4

5

T+

T–

R+

R–

Transmitter

Shield 1)

Tvinnade trådpar

Ex MA-12, MA-19....

Transmitter

R+

R–

T+

T–

Receiver

3

4

1

2

Summary of Contents for MA-12 AC

Page 1: ...streckenmodem INSTALLATIONSANVISNING INSTALLATION MANUAL INSTALLATIONS ANLEITUNG 6012 2001 www westermo se MA 12 AC MA 12 DC Westermo Teleindustri AB 1999 REV A Galavanic Isolation CE Approved Balance...

Page 2: ...sformer supply Insulation voltage 1500V Overvoltage protection N t Breakdown voltage 440V at 230V AC and 220V at 115V AC Interface 2 Breakdown voltage transmitter 15V and receiver 5 8V Surge capacity...

Page 3: ...9 S1 DTR and RFR ON 1 2 3 4 5 6 7 8 9 S1 DTR and RTS CTS controlled by ON 1 2 3 4 5 6 7 8 9 S1 RTS ON 1 2 3 4 5 6 7 8 9 S1 Always high ON 1 2 3 4 5 6 7 8 9 S1 DCD ON 1 2 3 4 5 6 7 8 9 S1 Factory sett...

Page 4: ...sub female Direction 1 Pin CCITT V 24 Description no Circuit number I 2 103 TD Transmitted Data O 3 104 RD Received Data I 4 105 RTS Request to Send O 5 106 CTS Clear to Send O 6 107 DSR Data Set Rea...

Page 5: ...ons according to MA 12 AC 1 2 3 4 5 1 2 3 POWER 12 36V DC LINE CONNECTION V 24 RS 232 C CONNECTION Transmission range interface 2 Cable Transmission rate bit s 42pF m 600 1200 2400 4800 9600 19200 384...

Page 6: ...n RTS Indicates the carrier control status A good way to check the MA 12 is to carry out a loop back test Connect T to R and T to R Connect the RS 232 port to a terminal When keys are pressed on the t...

Page 7: ...13 6012 2001 OWN COMMENTS...

Page 8: ...ermo Teleindustri AB S 640 40 Stora Sundby Sweden Phone 46 16 612 00 Fax 46 16 611 80 E mail info westermo se Westermo Web site www westermo se Westermo Teleindustri AB have distributors in several co...

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