The SFP transceiver modules are hot-pluggable I/O devices that plug into module sockets. The
transceiver connects the electrical circuitry of the module with the optical or copper network.

You can use any combination of SFP modules that your Cisco device supports. The only restrictions are
that each port must match the wavelength specifications on the other end of the cable and that the cable
must not exceed the stipulated cable length for reliable communications.

Cable lengths for 1000BASE-T SFP module copper connections cannot exceed 328 feet (100 meters)

Use only Cisco SFP transceiver modules on your Cisco device. Each SFP transceiver module has an
internal serial EEPROM that is encoded with security information. This encoding allows Cisco to
identify and validate that the SFP transceiver module meets the requirements for the device.

An SFP transceiver module is shown in

Figure 1

Figure 1

SFP Transceiver Module (Fiber-Optic LC Connector)

130927

G L

C - S

X - M

M C

l a s

1 2

1 C F

R 1 0

4 0 .

1 0

L N

# 5 0

7 /

0 1

0 3 -

1 3

S / N

: O

H 1 2

3 3 4

5 6

Receive optical bore

Transmit optical bore

Bail clasp

Dustplug