beautypg.com

Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM User Manual

Page 273

background image

Publication AG-UM008C-EN-P - February 2005

Configuring Modems 8-7

unshielded). The range is twenty miles on any ordinary pair wire, or
unlimited on ‘loaded’ telephone company voice grade leased lines.

Figure 8.4 LLM1000-2 Assignment

Table 8.4 LLM1000-2 Four Position Terminal Block Connections

Terminal Block

Assignment

1

Carrier

FSK carrier transmission
line(no polarity)

2

3

Power +

Supply power +

4

Power -

Supply power -

Table 8.5 LLM1000-2 DB-9 Assignment

LLM100-2

DB-9 Pin

Assignment

1

Carrier Detect

2

Data Out

3

Data In

4

Not Connected

5

Signal Ground

6

DSR

7

RTS

8

CTS

9

Not Connected

6

7

8

9

1

2

3

4

5

Power Ground

+12VDC

Carrier Lines

DB-9F

4-position terminal block

RS-232