Transition Networks, Inc.
IONPS-D-R1 User Guide
33707 Rev. A
Page
16
of
50
External Overcurrent Protection Requirements
WARNING: In compliance with UL 60950-1 2nd Edition Clause 1.7.2.3 the maximum recommended ampere
rating of an external overcurrent protection device or external disconnect device for the IONPS-D-R1 is 15
Amperes. However, this recommended maximum overcurrent protection device or external disconnect device
rating is not to be considered a branch circuit or power distribution protection device specification in conflict
with local and national electrical codes.
Branch circuit and power distribution protection device requirements must take into account installation wiring
requirements, wire size, type, environmental requirements and specifications, etc., as mandated by local and
national electrical codes and recommendations and as such the value of the overcurrent protection device may
be other than the recommended maximum 15 Amperes.
Note
: The power module can be hot swapped (i.e., swapped while the chassis is in operation) provided the
power module has been disconnected from its external power source.
To connect power to the DC power module in the ION219 chassis, do the following:
1.
Turn main power source OFF.
2.
Loosen the two (2) mounting screws, attaching the Euro Block to the power module and pull it from the
power module. See Figure 4.
Figure 4: Removing the Euro Block from Power Module
3.
Note polarity; insert the two (2) power wires into the Euro Block. The IONPS-D-R1 has reverse polarity
protection; if incorrectly wired, the IONPS-D-R1 will not power up. If incorrectly wired, change the wiring
connection polarity and continue.
