page 16 of 18
Appendix A: PSU Replacement
The ZoneDirector 5000 includes two redundant, hot-swappable power supply units (2
AC PSUs or 2 DC PSUs). No chassis components need to be removed to add or replace
a PSU.
To remove and replace a PSU:
Identify the faulty PSU by looking at the PSU status LED (red indicates PSU failure,
1.
green indicates normal operation).
Press and hold the green safety lock downward while grasping the PSU handle.
2.
Pull outward on the handle, sliding the PSU all the way out of the rear of the
3.
machine.
Insert the new PSU into the slot and, holding the green safety lock, slide the PSU
4.
into the slot until it locks in place.
The PSU status LED lights green, indicating that the PSU is operating normally.
5.
If you are installing a DC power supply, there are two threaded studs for chassis
L
enclosure grounding. A 90° standard barrel, two-hole, compression terminal lug
with 5/8-inch pitch suitable for a #14-10 AWG conductor must be used for proper
safety grounding. A crimping tool may be needed to secure the terminal lug to
the grounding cable.
Removing and replacing a power supply unit