HP rp2450 HP DTC Cabling and Racking Guide - Page 99
Adapting to an ATT258A cabling system
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9 Adapting to an ATT258A cabling system Adapting to an ATT258A cabling system The ATT258A cabling system uses 8 wires per port and provides 6 ports per 25 pair cables (or 50-pin telco-like connectors). The following table provides a cabling conversion using cross connect blocks (punch down blocks) from ATT356A to ATT258A. DTC Pin # on 50-pin connector 26 1 27 2 28 3 29 4 30 5 31 6 32 7 33 8 34 9 35 10 36 11 37 Port number RS-423/RS232 signal P0 - RTS P0 - CTS P0 - RXa/RD P0 - RXb/P0 - TXa/TD P0 - TXb/SGND P1 - RTS P1 - CTS P1 - RXa/RD P1 - RXb/P1 - TXa/TD P1 - TXb/SGND P2 - RTS P2 - CTS P2 - RXa/RD P2 - RXb/P2 - TXa/TD P2 - TXb/SGND P3 - RTS P3 - CTS P3 - RXa/RD P3 - RXb/P3 - TXa/TD Jumpers ATT258A Pin # on 50-pin connector 26 1 27 2 28 3 29 4 30 5 31 6 32 7 33 8 34 9 35 10 36 11 37 12 38 13 39 14 40 Port number RS-423/RS-232 signal P0 - RTS P0 - CTS P0 - RXa/RD P0 - RXb/P0 - TXa/TD P0 - TXb/SGND P0 - Not Used P0 - Not Used P1 - RTS P1 - CTS P1 - RXa/RD P1 - RXb/P1 - TXa/TD P1 - TXb/SGND P1 - Not Used P1 - Not Used P2 - RTS P2 - CTS P2 - RXa/RD P2 - RXb/P2 - TXa/TD P2 - TXb/SGND P2 - Not Used P2 - Not Used P3 - RTS P3 - CTS P3 - RXa/RD P3 - RXb/P3 - TXa/TD Pin # on RJ45 connector 5 4 1 2 3 6 7 8 5 4 1 2 3 6 7 8 5 4 1 2 3 6 7 8 5 4 1 2 3 93