ii
T
A B L E O F
C
ONTENTS
TABLE OF CONTENTS .................................. II
CHAPTER 1 INTRODUCTION
.................. 1
U
NPACKING
........................................................... 3
DEVICE DESCRIPTION, FEATURES AND
CAPABILITIES ................................................. 4
DES-1200M F
RONT AND
R
EAR
P
ANELS
...................... 4
DES-128 8
PORTS
10/100B
ASE
-TX M
ODULE
............... 6
DES-121T G
IGABIT
1000B
ASE
-T S
WITCH
M
ODULE
..... 8
FD
T
HE
LED
INDICATOR IS YELLOW WHEN THE PORT IS OPERATING
IN
F
ULL
-
DUPLEX MODE
. W
HEN THE PORT IS OPERATING IN
H
ALF
-
DUPLEX MODE
,
THE
LED
INDICATOR IS NOT LIT
.
..................... 9
DES-124F 4 P
ORTS
100B
ASE
-FX F
IBER
M
ODULE
...... 10
DES-121G/GL 1000B
ASE
-SX/LX F
IBER
M
ODULE
..... 12
CHAPTER 2 PLANNING YOUR
NETWORK
..................................................... 13
10B
ASE
-T E
THERNET
N
ETWORK
G
UIDELINES
............ 13
100B
ASE
-TX F
AST
E
THERNET
N
ETWORK
G
UIDELINES
13
100B
ASE
-FX F
AST
E
THERNET
N
ETWORK
G
UIDELINES
14
1000BASE-SX
AND
LX N
ETWORK
G
UIDELINE
.......... 14
N
ETWORK
P
LANNING
............................................. 15
E
XPANDED
N
ETWORKS
.......................................... 15