HP Superdome SX2000 HP DTC Cabling and Racking Guide - Page 93
Adapting to ATT356A cabling system
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9 Adapting to ATT356A cabling system Adapting to ATT356A cabling system ATT356A is a cabling system using 6 wires per port and provides 8 ports per 25 pair cables (or 50-pin telco-like connectors). The DTC is directly compatible with the ATT356A cabling system, providing 8 direct connect RS-232 or RS-423 ports on a 50-pin connector. The following table shows a cabling conversion using cross connect blocks (punch down blocks). 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 12 38 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 P3 - TXb/SGND P4 - RTS Jumpers ATT356A 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 Port number RS-423/RS-232 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 P3 - TXb/SGND P4 - RTS Pin # on RJ45 connector 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 87