Installation Manual

Installing S25N and S25V Systems 39
Installing Optics
The S25N and S25V each have four receptacles at the right end of their faceplates that accommodate
10/100/1000 SFP optical transceivers.
On the back of the switches, there are two bays that accept either stacking modules or 10GbE modules
(CX4 or XFP). A 10GbE module contains two ports. 10GbE modules should only be inserted or removed
when the switch is powered down, as detailed in Inserting Optional Modules (10-Gigabit or Stacking) on
page 19 in Chapter 3, Installing the Switch.
SFP and XFP transceivers can be inserted or removed while the switch is running.
Force10 Networks offers various types of SFP and XFP transceivers. For details, see:
http://www.force10networks.com/products/specifications.asp
Installing SFPs
To install an SFP into one of the four ports at the right front of the switch, follow the steps below:
Warning: Electrostatic discharge (ESD) damage can occur if components are mishandled. Always wear
an ESD-preventive wrist or heel ground strap when handling the system and its components.
Step Task
1 Position the SFP so it is in the upright position. (The SFP has a key that prevents it from being inserted
incorrectly.)
2 Insert the SFP into the port until it gently
s
naps into place.
Figure 26 Fron
t View of S25N with SFP
fn00162s25N
Caution: Before connecting a transceiver to a source, check the receive power of the transceiver with an
optical power meter. Generally, Force10 specified optics are not to be subjected to receive power higher
than that stipulated by the optic specification. If the optic is exposed to optical power in excess of the
specification, there is a high likelihood that it will be damaged.
Optical specifications for Force10 branded devices are at the following URL:
http://www.force10networks.com/products/mediaspecifications.asp