Planet GT-922 User manual

Gigabit Ethernet Converter
1000Base-SX/LX
Multi-mode to Single-mode

Trademarks
Copyright PLANET Technology Corp. 2000.
Contents subject to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp.
The information in this manual is subject to change without notice.
All other trademarks belong to their respective owners.
FCC Warning
This equipment has been tested and found to comply with the regulations
for a Class A digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with this user’s guide, may
cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in
which case the user will be required to correct the interference at his own
expense.
CE Mark Warning
This is a Class A product. In a domestic environment, this product may
cause radio interference, in which case the user may be required to take
adequate measures.
Revision
User's manual for PLANET Gigabit Ethernet Converter
Rev 1.0 (Sep. 2000)
Part No. EMGT922

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1. Overview
Thank you for purchasing PLANET GT-9XX family Gigabit Ethernet
Fiber-optic Converter. This converter is used to convert one type media
signal to other type equivalent that allows two type segments connect
easily, efficiently and inexpensively. This converter can be used as a
standalone unit or as a slide-in module to the 19”media chassis (up to 10
units) for a multi-mode and single-mode Fiber combined networks at a
central wiring closet. Please contact with your sales representative for
more about the 19”media chassis.
2. Model List
Your Gigabit Ethernet Converter comes with one of the following models.
ðGT-922 : two on board SC fiber connectors
ðGT-933 : two on board MT-RJ fiber connectors
In the following sections, the term “GT-9XX”indicates the
product family above, the term “MM”and “SM”represent Multi-
Mode and Single Mode fiber-optic mode.
3. Checklist
Your GT-9XX carton should contain the following items:
ðThe Gigabit Ethernet Converter
ðAC-DC Power Adapter (Output: 5VDC, 1 A max.)
ðThis user’s guide
If any item is missing or damaged, please consult the dealer from
whom you purchased your Gigabit Ethernet Converter.

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4. Product Outlook
Right View (GT-922)
Two fiber-optic connectors, multi-mode on the left, single-mode
on the right and three LED indicators.
For other GT-9XX, the outlook of fiber port is accordant to its
related port, like. MT-RJ.
Rear View (GT-9XX)
One DC jack for DC power input.

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5. Installing the Converter
Please follow these steps to install the converter:
•Turn off the power of the device/station in a network to
which the GT-9XX will be attached
•Ensure that there is no activity in the network
•Attach MM fiber cables from the GT-9XX to the MM fiber
network. TX, RX must be paired at both ends
•Attach SM/MM* fiber cables from the GT-9XX to the SM
fiber network. TX, RX must be paired at both ends.
•Connect the 5VDC power adapter to the GT-9XX and verify
that the Power LED lights up.
•Turn on the power of the device/station, the SD LEDs should
light when all cables are attached
*: Please refers to section 8 for detailed wiring information of the
GT-9XX
GT-9XX
1000Base-SX
Multi-Mode
Fiber Network
1000Base-LX
SM/MM
Fiber Network
Gigabit Ethernet Converter
1000Base-SX/LX
Note:
nTo prevent from optic acceptor malfunction, check the both
wires / transmitter before power on the converter.
6. Duplex Mode setting
The GT-9XX is a transparent device between the two fiber
networks, please make sure the both networks are set to the same
duplex environment, or you may get a worse performance in both

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networks. Connect with full-duplex Gigabit Ethernet networks are
strongly recommended.
7.LED indication
LED COLOR DESCRIPTION
Green Blinks when any data packet is presentSD Green Lit when Fiber connection is good
PWR Green Lit when +5VDC power detected
8. Cable Connection Parameter
The wiring details are as below:
Cables:
Standard Fiber Type Cable Specification
1000Base-SX
(850nm) Multi-mode 50/125ìm or 62.5/125ìm
Multi-mode 50/125ìm or 62.5/125ìm1000Base-LX
(1300nm) Single-mode 9/125ìm
Wiring Distances:
Standard Fiber Diameter
(micron) Modal Bandwidth (MHz * km) Max. Distance (meters)
1000Base-SX MM 62.5
62.5
50
50
100
200
400
500
220
275
500
550
MM 62.5
50
50
5
4
5
5501000Base-LX
SM 9N/A 5000*
*Note: The Single-mode port (100Baes-LX port) of GT-922 is complied
with LX 5 kilometers and provides additional margin allowing for a
10 kilometers Gigabit Ethernet link on single mode fiber

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9. GT-9XX Technical Specifications
The GT-9XX comes with the following standard features:
•Standard : IEEE802.3z, Gigabit Ethernet 1000Base-SX/LX
•Connectors :
ðOne Fiber-optic, 850nm wavelength, MM
ðOne Fiber-optic, 1300nm wavelength, SM/MM
Connector-type different with models
•Data Transfer Rate :1000Mbps
•Duplex mode support :Full or half-duplex mode
•LED indicators :PWR, SX SD , LX SD
•Power Requirement :5V ,1A
•Ambient Temperature :0°to 50°C (operating)
•Humidity :5% to 90%
•Dimension : 26 x 70 x 97mm (HxWxD)
•Cable :
ðMM: 50/125 µm or 62.5/125 µm optic fiber
ðSM: 9/125 µm optic fiber
•Wiring : Please refer to Section 8
Connecting to the Gigabit Ethernet products, please refer to the
device’s Technical Manual.
10. Power information
The power jack of GT-9XX is with 2.5mm in the central post and
required +5VDC power input. It will conform to the bundled AC-
DC adapter and Planet’s Media Chassis. Should you have the
problem to make the power connection, please contact your local
sales representative.
Please keep the AC-DC adapter as spare parts when your GT-9XX
is installed to a Media Chassis.
Part No.:EMGT922