Cable Routing For Lan Systems; Fiber Optic Ports-Optical Safety - Extreme Networks X440 Series Installation Manual

Maintenance Safety
a On each terminal, loosen the screw enough to allow the spade terminal to slide underneath the
captive washer.
b Slide the spade terminal of the negative wire (–48 V) under the captive washer on the negative
terminal (labeled –48V).
c Slide the spade terminal of the positive wire (+48 V) under the captive washer on the positive
terminal (labeled +48V).
d Tighten both screws on the terminal block to 11 inch-pounds
Figure 5: Connecting the DC Power Cables
+48V
3 Energize the DC circuit.

Cable Routing for LAN Systems

The Summit X440 series switches meet the requirements for LAN system equipment. LAN systems are
designed only for intra-building installations; that is, cable runs between devices must be in the same
building as the connected units.
Fiber Optic Ports—Optical Safety
The following safety warnings apply to all optical devices used in Extreme Networks equipment that
are removable or directly installed in an I/O module or chassis system. Such devices include but are
not limited to gigabit interface converters (GBICs), small form factor pluggable (SFP) modules (or
mini-GBICs), XENPAK transceivers, and XFP laser optic modules.
WARNING!
Laser optic modules become very hot after prolonged use. Be careful when you remove a laser optic
module from the chassis or option card. If the laser optic module is too hot to touch, disengage the laser optic
module and allow it to cool before removing it completely.
8
-48V
-48 ~ -72V
(Figure 5).
Summit X440 Series Switches Installation Note