Urmet 9854/56 Manual De Instrucciones página 5

If the buzzer is used with relay devices Ref. 788/51 and Ref. 788/58, insert the 47 Ohm resistor,
moving the jumper.
repLaceMenT OF OLD MODeLS
Description
Power supply
Floor call
Resistor for audio
attenuation
DS9854-00B
Signo
Red (1)
47Ω
47Ω
NOT inserted
inserted
(default)
ref. 9854/56
+/~
-/~ (black wire)
CP
CP
1
1 (red wire)
Black (-/~)
ref. 1131/7
RZ
black wire
1
red wire
Sentry Scout
C P
C P
/ ~
1 +
ref. 9854/52
+/~
-/~
ref. 9854/53
CH
CP+
CP-
5