Instructions

Hardware installation
104275_en_c00 PHOENIX CONTACT 2-15
2.4 Use in potentially explosive areas
The PSI-MODEMSHDSL/SERIAL is designed for use in potentially explosive areas that re-
quire category 3G equipment.
Special conditions
Observe the specified conditions for use in potentially explosive areas.
WARNING: Explosion hazard
Install the device in suitable housing with IP54 protection, minimum, that meets the
requirements of EN 60079-15.
WARNING: Explosion hazard
Disconnect the block power supply before:
– Snapping it on or disconnecting it.
– Connecting or disconnecting cables.
WARNING: Explosion hazard
The mini-USB configuration interface may only be used if it has been ensured that
there is no potentially explosive atmosphere present.
WARNING: Explosion hazard
Connection to the D-SUB interface is only permitted if the screw connection is fully tight-
ened.
WARNING: Explosion hazard
Only devices which are designed for operation in zone 2 potentially explosive areas and
are suitable for the conditions at the installation location may be connected to the signal
circuits in zone 2.