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893-862-B SMF MDA Page -1 Monday, September 30, 1996 1:32 PM
Using the BayStack
Ethernet Fiber Media
Adapters
Bay Networks, Inc. Corporate Headquarters
4401 Great America Parkway 8 Federal Street
Santa Clara, CA 95054 Billerica, MA 01821
March 1996
*893-862-B*
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893-862-B SMF MDA Page 0 Monday, September 30, 1996 1:32 PM © 1996 by Bay Networks, Inc. All rights reserved. Trademarks Bay Networks, BayStack, and Bay Networks Press are trademarks of Bay Networks, Inc. Other brand and product names are registered trademarks or trademarks of their respective holders. Statement of Conditions In the interest of improving internal design, operational function, and/or reliability, Bay Networks, Inc. reserves the right to make changes
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893-862-B SMF MDA Page 1 Monday, September 30, 1996 1:32 PM Introduction This guide describes the Bay Networks 10BASE-FL (fiber link) and single-mode fiber media adapters for the BayStack 10BASE-T Hubs, and provides instructions for installing, connecting, and configuring the adapters in the hub. Each BayStack fiber media adapter provides one nonredundant single- or multimode fiber port for flexible backbone connectivity to your BayStack 10BASE-T Hub. Both adapters employ 10BASE-
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893-862-B SMF MDA Page 2 Monday, September 30, 1996 1:32 PM BayStack 10BASE-FL Media Adapter The BayStack 10BASE-FL Media Adapter is a modular 10BASE-FL fiber link port. It is designed to be installed in either media adapter slot of a BayStack 10BASE-T Hub. The port is compatible with the IEEE 802.3 10BASE-FL specification for Ethernet running over 62.5/125 m m or 50/125 m m multimode fiber optic cable. TX RX 10BASE-FL 5956 Connection is made to the port using two straight-tip (S
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893-862-B SMF MDA Page 3 Monday, September 30, 1996 1:32 PM BayStack Single Mode Fiber Media Adapter The BayStack Single Mode Fiber Media Adapter is a modular port supporting 10BASE-F signaling. It is designed to be installed in the media adapter slot of any BayStack 10BASE-T Hub. The port conforms to Bay Networks proprietary standards for Ethernet running over 9/125 m m single-mode fiber optic cable. No IEEE or other international standards exist for this configuration at this
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893-862-B SMF MDA Page 4 Monday, September 30, 1996 1:32 PM Fiber Optic Cable Length Limitations The 10BASE-F standard permits you to use fiber optic cables up to 2000 meters long. However, the fiber connection must meet: • Optical power budget • Ethernet repeater rules For more information about simple rules for Ethernet network compliance, refer to Using the BayStack 10BASE-T Hubs. BayStack 10BASE-FL Media Adapter The optical power budget for the 10BASE-FL media adapter is
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893-862-B SMF MDA Page 5 Monday, September 30, 1996 1:32 PM Table 2 lists the most common cable and connector combinations for the 10BASE-FL media adapter, assuming the maximum permitted attenuation with ST connectors. The table lists the maximum (total) distance allowed in the fiber connection. However, your fiber connection may have to be shorter to meet the optical power budget and Ethernet repeater rules. Table 2. 10BASE-FL cable and connector combinations Number of in-lin
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893-862-B SMF MDA Page 6 Monday, September 30, 1996 1:32 PM BayStack Single Mode Fiber Media Adapter The optical power budget for the single-mode fiber media adapter is shown in Table 1. Power loss in the link cannot exceed the value for the type of fiber optic cable you are using. Table 3. Single-mode fiber optical power budget Parameter 9/125 m m Transmitted power (average) –29.0 dBm Receiver sensitivity (average) –35.5 dBm Optical power budget 6.5 dB Only in-line fiber-to-fiber
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893-862-B SMF MDA Page 7 Monday, September 30, 1996 1:32 PM Installing a Media Adapter in a BayStack Hub A BayStack 10BASE-FL media adapter is installed in a slot on the front of the BayStack 10BASE-T Hub. To install a media adapter, follow these steps: 1. Unplug the BayStack 10BASE-T Hub power cord from the AC power source. 2. Remove the filler panel from the media adapter slot on the front panel of the hub. 3. Install the media adapter into the media adapter slot. a. Ali
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893-862-B SMF MDA Page 8 Monday, September 30, 1996 1:32 PM 6. Verify the installation for the media adapter. Observe for the installed media adapter that the respective Media Adapter LEDs on the front panel of the hub light according to Table 4. Table 4. Media adapter status LEDs Hub media Media adapter status adapter LEDs Green Link status is good, port not partitioned. Amber Link status is good, port is partitioned. Off Link status is bad or connection is not present. F
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893-862-B SMF MDA Page 9 Monday, September 30, 1996 1:32 PM Bay Networks, Inc. One-year Limited Hardware Warranty Bay Networks warrants this hardware product will be free from defects in material and workmanship for a period of one (1) year under normal operating conditions from the date of original purchase. Should you discover a defect in material or workmanship within this warranty period, Bay Networks will repair or replace the defective product when it is returned to Bay Netwo
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893-862-B SMF MDA Page 10 Monday, September 30, 1996 1:32 PM Electromagnetic Emissions Meets requirements of: FCC Part 15, Class A Digital Devices VCCI Class 1 ITE EN 55 022 (CISPR 22, Class B) General License Vfg 243 (Class B) Compliance with the VCCI regulation is dependent upon the use of shielded AC power cables. The user is responsible for procuring the appropriate cables. Compliance with Class B regulations is dependent upon the use of shielded cables. The user is responsi
