HP 870 - Installing a Power Supply

•
Make sure the Tx and Rx ports on a transceiver module are correctly connected.
To connect the device to the network through an optical fiber:
1. Remove the dust plug on the fiber port.
2. Remove the dust cover from the transceiver module, and insert the transceiver module into the fiber
port.
3. Remove the dust cover of the optical fiber connector.
4. Identify the Rx and Tx ports on the transceiver module. Plug the LC connectors at one end of the
optical fiber into the Rx and Tx ports of the transceiver module and the other end into the Tx and
Rx ports of the peer device.
Figure 26 Connecting an optical fiber
5. Power on the device, and examine the SFP port LEDs:
 If the LED is on, a fiber link has been set up.
 If the LED is off, no link has been set up. The reason might be wrong connection of the Tx and
Rx ends. Connect the Tx and Rx ends at one end of the fiber again.
Installing a power supply
CAUTION:
Do not install an AC power supply and a DC power supply
on the same device. The HP 870 cannot
balance the output current between AC and DC power supplies installed in the same chassis, which causes
one power supply to be in light
-load status and one in heavy-load status. Should the heavy-
load power
supply fail or be removed, the remaining light
-load power supply will immediately switch to heavy-
load
status and the output voltage will drop. This voltage drop may cause the device to reboot.
1. Remove the filler panel (if any) from the slot where you want to install a power supply with a Phillips
screwdriver.
Keep the remove filler panel for future use.
1 2
3
4
22