50-Pin Cable Pinouts And Port Assignments - 3Com CoreBuilder 5000 User Manual

A-4 S
PECIFICATIONS
Table A-1

50-Pin Cable Pinouts and Port Assignments

Hub
Hub Hub Function/
Port # Pin # Polarity
Port 1 26 RX, +
Port 1 1 RX, -
Port 1 27 TX, +
Port 1 2 TX, -
Port 2 28 RX, +
Port 2 3 RX, -
Port 2 29 TX, +
Port 2 4 TX, -
Port 3 30 RX, +
Port 3 5 RX, -
Port 3 31 TX, +
Port 3 6 TX, -
Port 4 32 RX, +
Port 4 7 RX, -
Port 4 33 TX, +
Port 4 8 TX, -
Port 5 34 RX, +
Port 5 9 RX, -
Port 5 35 TX, +
Port 5 10 TX, -
Port 6 36 RX, +
Port 6 11 RX, -
Port 6 37 TX, +
Port 6 12 TX, -
Transceiver Hub
Function Port Hub
/Polarity # Pin #
TX, + (1) 7 38
TX, - (2) 7 13
RX, + (3) 7 39
RX, - (6) 7 14
TX, + (1) 8 40
TX, - (2) 8 15
RX, + (3) 8 41
RX, - (6) 8 16
TX, + (1) 9 42
TX, - (2) 9 17
RX, + (3) 9 43
RX, - (6) 9 18
TX, + (1) 10 44
TX, - (2) 10 19
RX, + (3) 10 45
RX, - (6) 10 20
TX, + (1) 11 46
TX, - (2) 11 21
RX, + (3) 11 47
RX, - (6) Port 22
11
TX, + (1) Port 48
12
TX, - (2) Port 23
12
RX, + (3) Port 49
12
RX, - (6) Port 24
12
50
25
Hub Transceiver
Function/ Function
Polarity /Polarity
RX, + TX, + (1)
RX, - TX, - (2)
TX, + RX, + (3)
TX, - RX, - (6)
RX, + TX, + (1)
RX, - TX, - (2)
TX, + RX, + (3)
TX, - RX, - (6)
RX, + TX, + (1)
RX, - TX, - (2)
TX, + RX, + (3)
TX, - RX, - (6)
RX, + TX, + (1)
RX, - TX, - (2)
TX, + RX, + (3)
TX, - RX, - (6)
RX, + TX, + (1)
RX, - TX, - (2)
TX, + RX, + (3)
TX, - RX, - (6)
RX, + TX, + (1)
RX, - TX, - (2)
TX, + RX, + (3)
TX, - RX, - (6)
Not Used Not Used
Not Used Not Used