Nortel Networks Switch 00BASE FX User Manual
Reference for the  
Centillion 100  
8/2-port EtherSpeed  
10BASE-T/100BASE-FX  
Switch Module  
Part No. 893-00994-A  
May 1997  
 
Status LEDs  
Two banks of status LEDs on the EtherSpeed module correspond to the port numbers on the module  
(see Figure 2). Each fiber port has a correspondingly numbered LED.  
1
2
3
4
9
ETHERSPEED  
10/100  
100 Mb/s  
fiber port LEDs  
5
6
7
8
10  
938EA  
Figure 2. EtherSpeed 10BASE-T/100BASE-FX Switch Module LEDs  
Each numbered LED turns on, turns off, or blinks to indicate link status and/or data activity as  
described in Table 1.  
Table 1. EtherSpeed LED definitions  
LED State  
Meaning  
Turns on  
Port is enabled from network management, and a cable is attached.  
Data is being transmitted or received.  
Blinks  
On (steady, not blinking)  
Port detects link pulses from the other end, but there is no data.  
3
 
   
Default Configuration  
Table 2 lists the factory defaults for ports on the EtherSpeed module.  
Table 2. Factory defaults for EtherSpeed 10/100 Mb/s ports  
Parameter  
Factory default  
Configurable options  
Switching mode  
Spanning Tree Protocol  
Path cost  
Transparent  
None  
Transparent  
None, IEEE  
1–65535  
16  
Port partition state  
Filters  
Enabled  
Disabled  
Enabled, Disabled  
Enabled, Disabled  
None  
PMD type  
•
•
10BASE-TX  
100BASE-FX  
Port speed  
•
•
10BASE-TX  
100BASE-FX  
10 Mb/s  
100 Mb/s (autosensing)  
None  
None  
Half/full duplex  
Bridge group  
Priority  
Full Duplex  
Half/full duplex  
2–32  
2
128  
0-255  
Fiber Port Requirements  
Two SC fiber optic connectors (see Figure 3) on the  
EtherSpeed module provide 100BASE-FX  
100 Mb/s ports. The 100BASE-FX ports have the  
following options and requirements:  
TX  
RX  
•
Cable Options  
— 62.5-micron multimode fiber optic  
— 50/125-micron multimode fiber optic  
Maximum fiber cable length  
•
— 380 meters (1246.4 feet) when operating in  
half-duplex mode  
6539  
Figure 3. SC connector  
— 128 meters (419.84 feet) if one of the FX  
ports is connected to a repeater that has FX  
ports and TX ports  
4
 
   
UTP Port Requirements  
The RJ-45 connectors for the 10BASE-T ports accept standard unshielded twisted pair (UTP) cable  
and are wired as MDI-X ports to connect end stations without using crossover cables. Use 100-ohm  
Category 5 UTP cable with RJ-45 plugs on each end of the UTP cable.  
Table 3 shows the pin assignments for 10BASE-T UTP ports in the standard MDI-X configuration.  
Table 3. 10BASE-T MDI-X port pin assignments  
Pin #  
MDI-X ports  
RJ-45 connector port  
(8-pin modular)  
1
2
3
4
5
6
7
8
Receive data +  
Receive data –  
Transmit data+  
Not used  
1 2 3 4 5 6 7 8  
Not used  
Transmit data –  
Not used  
4026  
Not used  
Figure 4 shows the pin assignments for a 10BASE-T Ethernet UTP crossover cable used to connect an  
Ethernet hub directly to the EtherSpeed module.  
TD+  
TD-  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TD+  
TD-  
RD+  
RD+  
Unused  
Unused  
RD-  
Unused  
Unused  
RD-  
Unused  
Unused  
Unused  
Unused  
6740.1  
Figure 4. 10BASE-T Ethernet UTP crossover cable pin assignments  
5
 
   
Technical Specifications  
Network Protocol and Standards Compatibility  
IEEE 802.3 for 10 Mb/s ports  
IEEE 802.3u for 100 Mb/s ports  
Data Rate  
100 Mb/s  
Interfaces  
SC fiber optic connectors for 100BASE-FX Ethernet  
RJ-45 (8-pin modular) connectors for 10BASE-T Ethernet  
Microprocessors  
Baseboard:  
64-bit MIPS 4700 series processor, 133 MHz  
Memory  
Processor:  
Buffer pool:  
2 MB  
4 MB  
Electrical Specifications  
Power consumption:  
35 W (119.35 BTUs)  
Physical Specifications  
Dimensions:  
(L) 10.5 by (W) 12.5 by (H) 1.0 in.  
(L) 26.7 by (W) 31.7 by (H) 2.5 cm  
Weight:  
2.5 lbs (1.1 kg)  
6
 
Environmental Specifications  
Operating temperature: 0° to 40° C  
Storage temperature: –25° to 70° C  
Operating humidity:  
Storage humidity:  
Operating altitude:  
Storage altitude:  
Free fall/drop:  
85% maximum relative humidity, noncondensing  
95% maximum relative humidity, noncondensing  
10,000 ft (3,000 m) maximum  
10,000 ft (3,000 m) maximum  
ISO 4180-s, NSTA 1A  
Vibration:  
IEC 68-2-6/34  
Shock/bump:  
IEC 68-2-27-29  
Electromagnetic Emissions  
Meets requirements of:  
FCC Part 15, Subpart B, Class A  
EN 55 022 (CISPR 22:1985), Class A  
VCCI Class 1 ITE  
Electromagnetic Susceptibility  
Electrostatic discharge (ESD): EC 801-2, Level 2  
Radiated electromagnetic field: EC 801-3, Level 2  
Electrical fast transient/burst:  
EC 801-4, Level 2  
Safety Agency Approvals  
UL listed (UL 1950)  
CSA certified (CSA 22.2 #950)  
TUV licensed (EN 60 950)  
UL-94-V1 flammability requirements for all PC boards  
7
 
Declaration of Conformity  
The following Declaration of Conformity for the Centillion 100 8/2-port EtherSpeed 10BASE-T/  
100BASE-FX Switch Module identifies the product, the Bay Networks name and address, and the  
applicable specifications that are recognized in the European community.  
8
 
© 1997 by Bay Networks, Inc. All rights reserved.  
Trademarks  
Bay Networks is a registered trademark of Bay Networks, Inc. Centillion 100, EtherSpeed, and SpeedView 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 to the products described in this document without notice.  
Bay Networks, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit  
layout(s) described herein.  
 

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