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Installation and Reference for the BayStack 60-12T/60-24T 10/100 Ethernet Hubs
B-2
206378-A
Table B-1 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.
Use the following cable categories, depending on the type of Ethernet
transmissions on your device.
• 10 BASE-T - 100 Ohm Category 3, 4, 5 twisted pair
• 100 BASE-TX - 100 Ohm Category 5 twisted pair
Figure B-2
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)
Assignment (Daisy-Chain Port,
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
1
2
3
6
OTD+
OTD-
IRD+
IRD-
IRD+
IRD-
OTD+
OTD-
Straight-Through
(Hub) (Adapter)
1
2
3
6
1
2
3
6
IRD+
IRD-
OTD+
OTD-
IRD+
IRD-
OTD+
OTD-
Crossover
(Hub) (Hub)