Honeywell International Inc. RTU-L12 Manual De Usuario
1.5.6 Output 2 – Door status light
The open collector output 2 (I max = 100mA) is used for signaling the
status of the door (gateway occupied / free).
An external DC relay must be installed in accordance with the following
limits:
• Max relay voltage = 28VDC
• Max relay current = 100mA
• Max Vce(sat at 100mA) = 1.2V
status of the door (gateway occupied / free).
An external DC relay must be installed in accordance with the following
limits:
• Max relay voltage = 28VDC
• Max relay current = 100mA
• Max Vce(sat at 100mA) = 1.2V
It is mandatory to use the 1N4004 (or equivalent) provided diode in
parallel to the coil of the relay.
Inductive load with alternating current: not allowed
parallel to the coil of the relay.
Inductive load with alternating current: not allowed
VE
X
T
_r
el
è
GN
D
Rel
ay c
o
il
diode 1N4004
OUT2
Transient
suppressor
suppressor
Vd
c /
ac
V
d
c / ac
C
NC
N
O
E
le
ct
ro
lo
ck
co
il
Figure 11: Output 2 connection- door status light
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