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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
1000BASE-SX
Transmitter:
Output Optical Power
(Average)
Pout -9.5 -6.5 0 dBm
Receiver:
Optical Input Power PR -17 - 0 dBm
1000BASE-LX
Transmitter:
Output Optical Power
(Average)
Pout 9.5 - -3 dBm
Receiver:
Optical Input Power PIN -20 - -3 dBm
1000BASE-LH70
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.
Country Telephone Number
Asia, Pacific Rim
Australia
Hong Kong
India
Indonesia
Japan
Malaysia
New Zealand
Pakistan
Philippines
P.R. of China
Singapore
S. Korea
Taiwan
Thailand
1 800 678 515
800 933 486
+61 2 9424 5179 or
000800 650 1111
001 803 61009
00531 616 439 or
03 5977 7991
1800 801 777
0800 446 398
+61 2 9937 5083
1235 61 266 2602 or
1800 1 888 9469
10800 61 00137 or
021 6350 1590 or
00800 0638 3266
800 6161 463
080 333 3308
00801 611 261
001 800 611 2000
You can also obtain support in this region using the
following e-mail:
apr_technical_support@3com.com
Or request a repair authorization number (RMA) by fax
using this number: + 65 543 6348
Europe, Middle East, and Africa
From anywhere in these
regions, call:
+44 (0)1442 435529
From the following countries, you may use the numbers
shown:
Austria
Belgium
Denmark
Finland
France
Germany
Hungary
Ireland
Israel
Italy
Luxembourg
Netherlands
Norway
Poland
Portugal
South Africa
Spain
Sweden
Switzerland
U.K.
01 7956 7124
070 700 770
7010 7289
01080 2783
0825 809 622
01805 404 747
06800 12813
01407 3387
1800 945 3794
199 161346
342 0808128
0900 777 7737
815 33 047
00800 441 1357
707 200 123
0800 995 014
9 021 60455
07711 14453
08488 50112
0870 909 3266
You can also obtain support in this region using the
following URL:
http://emea.3com.com/support/
email.html
Latin America
Antigua
Argentina
Aruba
Bahamas
Barbados
Belize
Bermuda
Bonaire
Brazil
Cayman
Chile
Colombia
Costa Rica
Curacao
Ecuador
Dominican Republic
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Nicaragua
Panama
Paraguay
Peru
Puerto Rico
Salvador
Trinidad and Tobago
Uruguay
Venezuela
Virgin Islands
1 800 988 2112
0 810 444 3COM
1 800 998 2112
1 800 998 2112
1 800 998 2112
52 5 201 0010
1 800 998 2112
1 800 998 2112
0800 13 3COM
1 800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
1 800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
57 1 657 0888
AT&T +800 998 2112
1 800 998 2112
571 657 0888
01 800 849CARE
AT&T +800 998 2112
AT&T +800 998 2112
54 11 4894 1888
AT&T +800 998 2112
1 800 998 2112
AT&T +800 998 2112
1 800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
57 1 657 0888
You can also obtain support in this region using the
following:
Spanish speakers, enter the URL:
http://lat.3com.com/lat/support/form.html
Portuguese speakers, enter the URL:
http://lat.3com.com/br/support/form.html
English speakers in Latin America should send e-mail to:
lat_support_anc@3com.com
North America & Canada 1 800 876 3266
Country Telephone Number