Manual
ibaPADU-D-8AI-U/-D-8AI-I
14
Issue 1.4
7.3
Connections
7.3.1
Fiber optic connections X10 and X11
X11 (RX): FO input
X10 (TX): FO output
The device supports the FO transfer protocol 32Mbit Flex. A bidirectional FO connection
is required to connect to an ibaPDA system. A fiber optic card of type ibaFOB-D or
ibaFOB-Dexp must be installed in the ibaPDA computer to be able to receive and send
the data.
Maximum distance of fiber optic connections
The maximum distance of fiber optic connections between 2 devices depends on various
influencing factors. This includes, for example, the specification of the fiber (e.g.
62.5/125
μm, 50/125 μm
, etc.), or the attenuation of other components in the fiber optic
cable plant such as couplers or patch panels.
However, the maximum distance can be estimated on the basis of the output power of
the transmitting interface (TX) or the sensitivity of the receiving interface (RX). A model
calculation can be found in chapter 10.3.
The specification of the transmitter's output power and the receiver's sensitivity of the
fiber optic components installed in the device can be found in chapter "Technical data"
10.1 under "ibaNet interface".
7.3.2
Power supply X14
The device requires an external DC 24 V ±10% power supply (unregulated). The oper-
ating voltage should be run through the provided 2-pin Phoenix threaded coupling con-
nector. If desired, you can order DIN rails or plug-in power supply units from iba.
7.3.3
Analog / digital inputs
7.3.3.1 Filter of analog inputs (both devices)
There are the following filters per channel:
Filter type
Order
Cutoff frequency
in addition /
permanent
R/C low pass
1.
40 kHz
permanent
Analog antialiasing
Butterworth
4.
20 kHz
in addition
Antialiasing digital
1/3 of the adjusted sampling rate
Figure 3:
Filter sections
