Siemens SPCK421 Spezifikationen Seite 54

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9
Wiring the system
Wiring an external SAB bell
54
Siemens AB
A6V10276959
Security Products
18.11.2011
9.6 Wiring an external SAB bell
On an external bell to the SPC controller board the relay output is wired to the
strobe input with Bell Hold Off (BHO) and Tamper Return (TR) connected to their
respective inputs on the external bell interface.
A resistor (2K2) is pre-fitted on the controller board between the BHO and TR
terminals. When wiring an external bell, connect this resistor in series from the TR
terminal on the controller to the TR terminal on the external bell interface.
External bell wiring
A
Strobe +
B
Strobe
C
Hold off
D
Tamper return
E
Bell -
F
Bell +
9.7 Wiring an internal sounder
To wire an internal sounder to the SPC controller connect the IN+ and IN
terminals directly to the 12 V sounder input.
1
2
Internal sounder wiring (12 V)
IN
IN– (SPC controller)
IN+
IN+ (SPC controller)
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