Transition Networks, Inc.
IONPS-D-R1 User Guide
33707 Rev. A
Page
18
of
50
Redundant (Failover) Chassis Power Module
Note
: In a dual redundant power module configuration (second module inserted into the chassis), the fan in the
second power module will operate without external power applied, if power is applied to the chassis.
This provides extra chassis heat exhaust when the power module is not in use, and in stand-by mode.
To install and set up a second power module for redundancy (failover):
1 Remove and keep the two (2) 6-32 Philips head screws attaching the slot cover to the chassis. See Figure 6.
Figure 6: Remove Slot Cover
2. Remove the Euro Block from the power module.
3. Ensure that the main power source is switched OFF.
4. Note polarity, insert the two (2) power wires into the Euro Block and secure them. The IONPS-D-R1 has
reverse polarity protection; if incorrectly wired, the IONPS will not power up. Change the wiring connection
polarity and continue.
5. Insert the Euro Block into the power module and tighten the two (2) screws to secure it to the chassis.
6. Connect the ground wire to the power module chassis.
7. Slide the second power module into the chassis. See Figure 7 below.
Note
: The fan in the second power module will operate without external power applied, if power is applied to
the chassis.
