3-6
EB 9511 EN
Design and principle of operation
3.4 Option modules
The gateway provides analog inputs through
the use of option modules to accept (4 to
20 mA) analog signals from filling level or
pressure sensors of external equipment. Four
slots are available in the device.
Upon delivery of the SAM Connect Gate
-
way, at least one option module is installed.
Further option modules can be retrofitted.
The following option modules are available:
−
AI: Analog input
This module works passively and has
galvanically isolated inputs. It can accept
signals from devices with their own pow-
er supply.
−
AIA: Analog input active
This
AIA (analog input active)
option
module works actively and has a 12 V
output to power external equipment that
do not have their own power supply.
3.5 Power supply unit with
standby power supply
(SPS)
The power supply units include a battery
compartment for a 1.5 V battery which pro
-
vides standby power supply upon power
failure.
Summary of Contents for 5007-2 Series
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