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Specifications A - 5
Table A-1. 50-Pin Cable Pinouts and Port Assignments
Hub
Port #
Hub
Pin
#
Hub
Function
/Polarity
Trans-
ceiver
Function
/Polarity
Hub
Port #
Hub
Pin#
Hub
Function
/Polarity
Trans-
ceiver
Function
/Polarity
Port 1 26 RX, + TX, + (1) Port 7 38 RX, + TX, + (1)
Port 1 1 RX, - TX, - (2) Port 7 13 RX, - TX, - (2)
Port 1 27 TX, + RX, + (3) Port 7 39 TX, + RX, + (3)
Port 1 2 TX, - RX, - (6) Port 7 14 TX, - RX, - (6)
Port 2 28 RX, + TX, + (1) Port 8 40 RX, + TX, + (1)
Port 2 3 RX, - TX, - (2) Port 8 15 RX, - TX, - (2)
Port 2 29 TX, + RX, + (3) Port 8 41 TX, + RX, + (3)
Port 2 4 TX, - RX, - (6) Port 8 16 TX, - RX, - (6)
Port 3 30 RX, + TX, + (1) Port 9 42 RX, + TX, + (1)
Port 3 5 RX, - TX, - (2) Port 9 17 RX, - TX, - (2)
Port 3 31 TX, + RX, + (3) Port 9 43 TX, + RX, + (3)
Port 3 6 TX, - RX, - (6) Port 9 18 TX, - RX, - (6)
Port 4 32 RX, + TX, + (1) Port 10 44 RX, + TX, + (1)
Port 4 7 RX, - TX, - (2) Port 10 19 RX, - TX, - (2)
Port 4 33 TX, + RX, + (3) Port 10 45 TX, + RX, + (3)
Port 4 8 TX, - RX, - (6) Port 10 20 TX, - RX, - (6)
Port 5 34 RX, + TX, + (1) Port 11 46 RX, + TX, + (1)
Port 5 9 RX, - TX, - (2) Port 11 21 RX, - TX, - (2)