HART Multiplexer System KFD*-HM*-16
Mounting and Installation
2018-04
23
4.4.4 Connecting the Multiplexer Devices to the Termination Board
The device is connected to the termination board via a 26-pin ribbon cable. The device has a
26-pin IDC socket on the front of the device for this purpose. 16 cables are intended for
the HART signal of the analog measuring circuits of the field devices. The remaining 10 cables
are connected to ground. For the assignment of the IDC socket, see chapter 9.2.
Pepperl+Fuchs provides special termination boards. Various connection options are available
for these termination boards.
Connecting Multiplexer Devices, Field Devices, and the Termination Board
Connect the multiplexer device to the termination board via the 26-pin ribbon cable K-HM26.
See chapter 3.4.
4.5 Connecting the Multiplexer Slaves
Danger!
Explosion hazard from exposed conductors
Exposed conductors of inadequately attached cables can cause sparks that can ignite
the surrounding potentially explosive atmosphere.
When installing the device ensure that the cables are adequately attached.
Danger!
Explosion hazard from using of non-intrinsically safe circuits in intrinsically safe circuits
Using non-intrinsically safe devices in intrinsically safe circuits suspends the type of
protection. This can ignite the surrounding potentially explosive atmosphere.
Do not use HART multiplexer devices and HART termination boards in intrinsically safe
circuits.
Danger!
Explosion hazard from live wiring of circuits
If you connect or disconnect energized circuits in a potentially explosive atmosphere, sparks
can ignite the surrounding atmosphere.
Only connect or disconnect energized circuits in the absence of a potentially explosive
atmosphere.
Danger!
Explosion hazard from exposed conductors
Exposed conductors of inadequately attached cables can cause sparks that can ignite
the surrounding potentially explosive atmosphere.
When installing the device ensure that the cables are adequately attached.
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