1 General information
© 2022 Interflex Datensysteme GmbH | IF-5835 Time Recording Terminal | 07.22
5
1.5 Safety
WARNING
Danger to life due to electric shock
People can be seriously hurt or killed through physical contact with live parts (e.g. 230 V~).
u
Make sure that you cannot touch live lines during installation.
u
Switch off the power supply of the devices.
u
Please observe the applicable safety regulations and take all precautionary measures to
ensure safe installation.
NOTICE
Property damage due to transient overvoltages
Transient overvoltages (surges, bursts) in the energy supply network can lead to malfunctions and
failures.
u
Use suitable mains filters that are professionally installed and operated.
NOTICE
Damage due to electrostatic discharge (ESD)
Electrical components and modules can be damaged by only slight, hardly noticeable electrostatic
discharge (ESD) without this becoming immediately obvious. ESD damages result in malfunctions
and even failure of the device.
u
Make sure that effective protective measures against electrostatic discharge are in place when
working on the open device.
1.6 Abbreviations
AC
A
lternating
C
urrent
BLE
Bluetooth Low Energy
CIDR
C
lassless
I
nter-
D
omain
R
outing
DC
D
irect
C
urrent
DIP switch
Switch in IC design, connections in two rows (
D
ual
I
n-line
P
ackage)
EMC
E
lectromagnetic
C
ompatibility
ESD
E
lectro
s
tatic
d
ischarge
GND
G
rou
nd
IEEE
I
nstitute of
E
lectrical and
E
lectronics
E
ngineers
NC contact
N
ormally
c
losed contact
