REFUSOL 004K Instrucciones De Uso página 28

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3.4 Network connectors
Figure 13 Network connector arrangement
(1) Terminal strip (is protected by a cover)
(2) Slide switch for terminator
(3) Network connectors according to EIA 485
(4) Adjustment template for terminator
(5) PC interface according to EIA 232 (for service purposes only)
Terminal strip connectors
Figure 14 Pin assignment
Terminal strip connectors:
1. Alarm contact (NC contact)
2. Alarm contact (mid-position contact)
3. Alarm contact (NO contact)
4. Unused
5. Input, max. 12 V (optional)
6. External 12 V supply voltage, max. 300 mW
7. External 0 V supply voltage
8. Shield according to EIA 485 (RS485)
9. Line A of the EIA 485 bus line
10. Line B of the EIA 485 bus line
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