3Com 3C17221 User Manual

®
SuperStack 3 Switch 4400 1000BASE-SX Module (3C17221)
User Guide
DUA1722-1AAA01
C L A
S S 1
L A S
3 C 1
7 2 2
1
I
NTRODUCTION
®
The SuperStack 3 Switch 4400 1000BASE-SX Module
(3C17221) provides your SuperStack 3 Switch 4400 with
one 850 nm Gigabit Ethernet fiber optic port.
The Module conforms to the full duplex implementation
of the Gigabit Ethernet standard, IEEE 802.3z, and
provides a 1000 Mbps connection to another
1000BASE-SX device. This port uses 62.5 µm or 50 µm
multimode fiber optic cable with MT-RJ duplex connectors
and supports the segment lengths specified in IEEE
802.3z, as shown below:
Fiber Size Fiber Bandwidth
at 850 nm
62.5 µm
160 MHz*km
200 MHz*km
50 µm
400 MHz*km
500 MHz*km
E R P
R O D
U C T
T h i s T h i s
p r o p r o
S u b S u b
d u c d u c
c h a c h a
t c o t c o
p t e p t e
m p m p
r J , r J ,
l i e s l i e s
a p p a p p
w i t w i t
l i c a l i c a
h D h D
3 C o 3 C o b l e b l e
H H H H
m E m E a t d a t d
S R u S R u
S u p
u r o u r o a t e a t e
l e 2 l e 2
p e L p e
o f m o f m
1 C 1 C
e r S L i m
i m i t
a n u a n u
F R F R
i t e d
t a c k e d
f a c t f a c t
u r e u r e
3 1
0 0 0
B A S
E - S
X M
o d u
l e
Segment Lengths Supported
2–220 m (7–722 ft)
2–275 m (7–902 ft)
2–500 m (7–1805 ft)
2–550 m (7–1805 ft)
LEDs
You can gather information about the status of the
Module and its packet activity using the Expansion
Module port LEDs on the front of the Switch.
Module Packet LED
Color Appearance
Green On
No color Off
Module Status LED
Color Appearance
Green On
Yellow On
Yellow Flashing
No color Off
1
Indicates
Full duplex activity being received or
transmitted.
No activity.
Indicates
The Module is installed and supported. The
Link Status has been determined.
The Module is installed and supported. The
Link Status has not been determined or
there is no link for a single port Module.
The Module is installed, however, it is not
supported.
The Module is not installed.