C
HAPTER
1
| Introduction
Description of Hardware
– 18 –
ES-2024G/2024GP
support auto-negotiation, the communication mode of that port can be
configured manually.
Each port also supports IEEE 802.3x auto-negotiation of flow control, so
the switch can automatically prevent port buffers from becoming
saturated.
SFP T
RANSCEIVER
S
LOTS
The Small Form Factor Pluggable (SFP) transceiver slots on the ES-2024G
and ES-2024GP are shared with four of the RJ-45 ports (ports 21~24). In
its default configuration, if an SFP transceiver (purchased separately) is
installed in a slot and has a valid link on its port, the associated RJ-45 port
is disabled and cannot be used. The switch can also be configured to force
the use of an RJ-45 port or SFP slot, as required.
The following table shows a list of transceiver types which have been
tested with the switches. For an updated list of vendors supplying these
transceivers, contact your local dealer. For information on the
recommended standards for fiber optic cabling, see
P
ORT
AND
S
YSTEM
S
TATUS
LED
S
These switches include a display panel for key system and port indications
that simplify installation and network troubleshooting. The LEDs, which are
located on the front panel for easy viewing, are shown below and described
in the following tables.
Table 1: Supported SFP Transceivers
Media Standard
Fiber Diameter
(microns)
Wavelength
(nm)
Maximum Distance
a
a.
Maximum distance may vary for different SFP vendors.
1000BASE-SX
50/125
850
700 m
62.5/125
850
400 m
1000BASE-LX
50/125
1300
550 m
62.5/125
1300
550 m
9/125
1300
10 km
1000BASE-LH
9/125
1310
35 km
1550
80 km
100BASE-FX
50/125 or 62.5/125
1300
2 km
9/125
1300
20 km
1000BASE-T
100 m
Содержание iPECS ES-2024G
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