Install Guide

The PSUs have an integrated fan, which you cannot replace individually; if the fan integrated in a PSU fails, you must replace
the entire PSU. You can replace the fan trays individually. For fan tray replacement procedures, see Fans.
WARNING: Prevent exposure and contact with hazardous voltages. Do not attempt to operate this switch with
the safety cover removed.
CAUTION: Remove the power cable from the PSU before removing the PSU. Also, do not connect the power
cable before you insert the PSU in the switch.
NOTE: To comply with the GR-1089 Lightning Criteria for Equipment Interfacing with AC or DC Power Ports, use an
external surge protection device (SPD) at the AC or DC input of the router.
PSU LEDs
Solid greenInput is OK.
Flashing yellow (amber)There is a fault with the PSU.
Flashing green blink at 1HzSwitch is in a standby/CR state.
OffPSU is off.
AC or DC power supply installation
NOTE: The PSU slides into the slot smoothly. Do not force a PSU into a slot as this action may damage the PSU or the
switch.
NOTE: Ensure that you correctly install the PSU. When you install the PSU correctly, the power connector is on the left
side of the PSU.
NOTE: If you use a single PSU, install a blank plate in the other PSU slot. If you are only using one power supply, install the
power supply in the first slot, PSU1. Install a blank plate in the second slot, PSU2.
1. Remove the PSU slot cover from the Z9264F-ON switch using a small #1 Phillips screwdriver.
2. Remove the PSU from the electro-static bag.
3. Insert the PSU into the switch PSU slotinsert the exposed PSU connector first).
The PSU slot is keyed so that you can only fully insert the PSU in one orientation. When you install the PSU correctly, it
snaps into place and is flushed with the back of the switch.
Power supplies
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