Technical Specifications
1000BASE-LH70, 1000BASE-SX, 1000BASE-LX SFP Transceivers
The 1000BASE-LH70 SFP Transceiver supports a direct connection to single-mode fiber-optic cable,
the 1000BASE-SX SFP Transceiver supports a direct connection to multi-mode fiber-optic cable
and the 1000BASE-LX SFP Transceiver supports a direct connection to both. Table 1 shows the
ranges for each connection.
Table 2 shows the optical characteristics for the transmitter and receiver for each Transceiver.
CAUTION:
If using cable lengths shorter than 25 km with the 1000BASE-LH70 SFP Transceiver, you
must ensure that a single-mode fiber attenuator is used to avoid signal saturation.
1000BASE-T SFP Transceiver
The 1000BASE-T SFP Transceiver port uses Category 5 copper cabling with RJ-45 connectors, and
supports segment lengths of up to 100 m (328 ft), as specified in the Gigabit Ethernet standard
IEEE802.3-2000.
CE Statement (Europe)
This product complies with the European Low Voltage Directive 73/23/EEC and the EMC Directive
89/336/EEC as amended by European Directive 93/68/EEC.
Table 1
Transmission Ranges
Fiber Type
Diameter
(microns)
Modal
Bandwidth
(MHz • km)
Minimum
Connector
End Polish
Transmission Range
1000BASE-SX
Multimode
62.5
160
-
2 m - 220 m (6.6 ft - 721.8 ft)
Multimode
62.5
200
-
2 m - 275 m (6.6 ft - 902.3 ft)
Multimode
50
400
-
2 m - 500 m (6.6 ft - 1640.5 ft)
Multimode
50
500
-
2 m - 550 m (6.6 ft - 1804.6 ft)
10000BASE-LX
Multimode
62.5
500
-
2 m - 550 m (6.6 ft - 1804.6 ft)
Multimode
50
400
-
2 m - 550 m (6.6 ft - 1804.6 ft)
Multimode
50
500
-
2 m - 550 m (6.6 ft - 1804.6 ft)
Single-mode
9
-
-
2 m - 10,000 m (6.6 ft - 32,810 ft)
1000BASE-LH70
Single-mode
9 core
-
PC
2 m - 70 km (6.6 ft - 43 miles)
Table 2
Optical Characteristics
Parameter
Symbol
Minimum
Typical
Maximum
Unit
10
00
BASE-
SX
Transmitter:
Output Optical Power
(Average)
Pout
-9.5
-6.5
0
dBm
Receiver:
Optical Input Power
PR
-17
-
0
dBm
10
00
BAS
E
-LX
Transmitter:
Output Optical Power
(Average)
Pout
9.5
-
-3
dBm
Receiver:
Optical Input Power
PIN
-20
-
-3
dBm
10
00
BAS
E
-LH7
0
Transmitter:
Output Optical Power
(Average)
Pout
0
-
+3
dBm
Receiver:
Optical Input Power
PIN
-24
-
-3
dBm
Technical Support
To obtain telephone support as part of your warranty and
other service benefits, you must first register your product
at
http://eSupport.3com.com/
The following options are available for technical support:
■
Contact your network supplier.
■
Check the 3Com knowledgebase at
http://knowledgebase.3com.com
■
Browse the 3Com web site at
http://www.3com.com
Please have your product model name, part number and
serial number (found on underside of transceiver) along
with all relevant details of the problem to hand before
calling your network supplier or 3Com.
Telephone numbers are correct at the time of publication.
Find a current directory of support telephone numbers
posted on the 3Com web site at
http://
csoweb4.3com.com/contactus/.
Register Your Product
To take advantage of warranty and other service benefits,
you must first register your product at
http://
eSupport.3com.com/
. 3Com eSupport services are based
on accounts that you create or have authorization to
access. First time users must apply for a user name and
password that provides access to a number of eSupport
features including Product Registration, Repair Services,
and Service Request.
3Com Corporation
, Corporate Headquarters
350 Campus Drive,
Marlborough, MA 01752-3064
To learn more about 3Com products and services, visit our
Word Wide Web site at www.3com.com.
All specifications subject to change without notice.
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Indonesia
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You can also obtain support in this region using the
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You can also obtain support in this region using the
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English speakers in Latin America should send e-mail to:
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Telephone Number
