Nortel Networks 60-24T User Manual
Installation and Reference for the BayStack 60-12T/60-24T 10/100 Ethernet Hubs
B-2
206378-A
describes the pin assignments.
Cable Assignments
You can use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable to
connect to RJ-45 ports.
connect to RJ-45 ports.
Use the following cable categories, depending on the type of Ethernet
transmissions on your device.
transmissions on your device.
•
10 BASE-T - 100 Ohm Category 3, 4, 5 twisted pair
•
100 BASE-TX - 100 Ohm Category 5 twisted pair
shows schematics for straight-through and crossover twisted-pair
cables.
Figure B-2.
Cable Schematics
Table B-1.
RJ-45 Pin Descriptions
Pin Number
Assignment (Station Ports
1 through 12 or 24)
1 through 12 or 24)
Assignment (Daisy-Chain Port,
other Devices)
other Devices)
1
Input Receive Data +
Output Transmit Data +
2
Input Receive Data -
Output Transmit Data -
3
Output Transmit Data +
Input Receive Data +
6
Output Transmit Data -
Input Receive Data -
4, 5, 7, 8
Not used
Not used
9243EA
1
2
3
6
2
3
6
1
2
3
6
2
3
6
OTD+
OTD-
IRD+
IRD-
OTD-
IRD+
IRD-
IRD+
IRD-
OTD+
OTD-
Straight-Through
(Hub)
(Adapter)
1
2
3
6
2
3
6
1
2
3
6
2
3
6
IRD+
IRD-
OTD+
OTD-
IRD+
IRD-
OTD+
OTD-
IRD-
OTD+
OTD-
Crossover
(Hub)
(Hub)