background image

 

 

 

893-863-A

9

 

Table 4 lists the most common cable and connector combina-
tions, 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 4. 10BASE-FL cable and connector combinations

Number of in-line 
fiber-to-fiber 
connections

62.5/125-

 

µ

 

m

cable

50/125-

 

µ

 

m

cable

 

0

2000 m (6560 ft)

2000 m (6560 ft)

1

2000 m (6560 ft)

2000 m (6560 ft)

2

2000 m (6560 ft)

2000 m (6560 ft)

3

2000 m (6560 ft)

1710 m (5620 ft)

4

2000 m (6560 ft)

1430 m (4690 ft)

5

2000 m (6560 ft)

1140 m (3750 ft)

6

1750 m (5740 ft)

860 m (2810 ft)

7

1500 m (4920 ft)

570 m (1870 ft)

8

1250 m (4100 ft)

290 m (940 ft)

9

1000 m (3280 ft)

0

10

750 m (2460 ft)

11

500 m (1640 ft)

12

250 m (820 ft)

13

0

Содержание BayStack Fiber Media Adapter

Страница 1: ...March 1996 893 863 A Bay Networks Inc Corporate Headquarters 4401 Great America Parkway Santa Clara CA 95054 8 Federal Street Billerica MA 01821 Using the BayStack Ethernet Redundant Fiber Media Adapter ...

Страница 2: ...use or application of the product s or circuit layout s described herein Related Publications For more information about the installation and use of BayStackTM hubs and optional equipment refer to the following publications Using the BayStack 10BASE T Hubs Bay NetworksTM part number 893 839 B Using the BayStack Ethernet Network Management Modules Bay Networks part number 893 841 A Ordering Bay Net...

Страница 3: ...y and two diagnostic LEDs This guide contains the following sections BayStack 10BASE FL RDN Media Adapter LEDs Jumper Remote Signaling Redundant Links Fiber Optic Cable Length Limitations Installing a Media Adapter in a BayStack Hub For more information about how the media adapter operates in the hub refer to Using the BayStack 10BASE T Hubs Bay Networks part number 893 839 B For more information ...

Страница 4: ... interoperable with fiber optic interrepeater link FOIRL Remote signaling and redundant links are also supported The redundant 10BASE FL media adapter provides Rem remote and Rdn redundant status LEDs Jumpers allow you to set remote and redundant link configuration Connection is made to the port using two fiber optic straight tip ST connectors Tx and Rx For more information on fiber optic cable co...

Страница 5: ...l Color Meaning Rem Green Fiber port is connected to a remote port that uses remote signaling and that port is not sending a remote fault signal both Tx and Rx connections are good Amber Fiber port is connected to a remote port that uses remote signaling but the Tx link to the remote Rx connector detects a remote fault Off Fiber port is not connected to another port that is capable of remote signa...

Страница 6: ...a adapter indicates remote signaling status For more information about this LED see LEDs earlier in this guide Table 2 LED status combinations Hub LED Rem Rdn Meaning Green Green Green Active link in a redundant port pair link status is good and remote link is good Amber Green Green Standby link in a redundant pair link status is good and remote link is good Amber Green Amber Standby link in a red...

Страница 7: ... set to off To set the port to operate in the redundant port mode perform the following steps Locate the shunt covering the JP1 jumper pins on the media adapter board Gently remove the shunt from the two far left pins Replace the shunt over the two far right pins NOTE Jumpers JP2 JP3 and JP4 are not user configurable Jumper 1 RDN EN JP1 JP1 RDN EN Default mode Redundant mode 6771 ...

Страница 8: ...standby link automatically takes over in less than 10 microseconds This redundant link feature allows you to build Ethernet dual homing and mesh type topologies The port at both ends of the fiber connection must support Bay Networks remote signaling A jumper is used to set the redundant 10BASE FL media adapter port to operate in redundant mode with a 10BASE FL fiber port on another hub Active fibe...

Страница 9: ...dapters in the redundant port pair For more information about this jumper see Redundant Enable Jumper earlier in this guide Disable any redundant port mode on the port at the other end of each redundant link A Rdn LED media adapter indicates redundant link status For more information about this LED see LEDs earlier in this guide ...

Страница 10: ...Power loss in the link cannot exceed the value for the type of fiber optic cable you are using Only in line fiber to fiber connections a connection between two fibers terminated with fiber connectors using a fiber to fiber connector count against the optical power budget The loss in a fiber connection at the ends of the link are included in the optical power budget and does not count as an in line...

Страница 11: ...ernet repeater rules Table 4 10BASE FL cable and connector combinations Number of in line fiber to fiber connections 62 5 125 µm cable 50 125 µm cable 0 2000 m 6560 ft 2000 m 6560 ft 1 2000 m 6560 ft 2000 m 6560 ft 2 2000 m 6560 ft 2000 m 6560 ft 3 2000 m 6560 ft 1710 m 5620 ft 4 2000 m 6560 ft 1430 m 4690 ft 5 2000 m 6560 ft 1140 m 3750 ft 6 1750 m 5740 ft 860 m 2810 ft 7 1500 m 4920 ft 570 m 187...

Страница 12: ...adapter slot a Align the media adapter with the card guides and gently slide in the media adapter until you feel it align with the connector on the hub motherboard b Firmly push the media adapter into the connector c Tighten the captive retaining screw on the media adapter by turning the screw clockwise 4 Reconnect the power cord The hub powers up and performs a self test 5 Make appropriate cable ...

Страница 13: ...to Table 5 For more information about interpreting media adapter LEDs refer to Chapter 1 Quick Reference Information in Using the BayStack 10BASE T Hubs Table 5 Media adapter status LEDs Hub media adapter LEDs 10BASE FL RDN Media 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 ...

Страница 14: ... of the repaired or replacement product to you whichever is longer This warranty does not apply if in the judgment of Bay Networks the Product fails due to damage from shipment handling storage accident abuse or misuse or if it has been used or maintained in a manner not conforming to product manual instructions has been modified in any way or has had any serial number removed or defaced Repair by...

Страница 15: ...user is responsible for procuring the appropriate cables Compliance with Class B regulations is dependent upon the use of shielded cables The user is responsible for procuring the appropriate cables For the complete electromagnetic emissions statements and declaration of conformance see Using the BayStack 10BASE T Hubs Bay Networks part number 893 839 A Bay Networks Customer Support For informatio...

Страница 16: ......

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