Siemens KS7 Series Specifikace stáhnout pdf (Strana 38)

Hardware Installation CP 523

3.4.2 Terminal Diagrams Communications Mode

The CP 523 assumes the following as peripheral device:

• Data terminal equipment, e.g. CP 521, CP 523, CPU 944

• Data communications equipment, e.g. a MODEM

CP 523 to CP 523 (TTY interface)

Figure 3-9. Pin Assignments for CP 523 to CP 523 (TTY Interface)

Ground

CP 523 (TTY active)CP 523 (TTY passive)

(2)

Ground

TTY IN - (8) (10) TTY OUT+

TTY IN+ (6) (22) 20 mA

TTY OUT+ (10) (20) 20 mA

TTY OUT - (12) (6) TTY IN+

(8) TTY IN -

(12) TTY OUT -

Shield (24) (24) Shield

Shield (25) (25) Shield

CP 521 (TTY passive) - CP 523 (TTY active)

Figure 3-10. Pin Assignments for CP 523 (TTY Passive) to CP 523 (TTY Active)

(8) TTY IN -

Ground

CP 523

CP 521

(2)

TTY IN+ (6) (22) 20 mA

TTY IN - (8) (10) TTY OUT+

TTY OUT+ (10) (20) 20 mA

TTY OUT - (12) (6) TTY IN+

(12) TTY OUT -

Shield (24) (24) Shield

Shield (25) (25) Shield

3-10

EWA 4NEB 811 6044-02a

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Siemens KS7 Series Specifikace Strana 38