HP StorageWorks 2/128 HP StorageWorks Core Switch 2/64 and SAN Director 2/128 - Page 145
Modem serial port specifications, Table 25 Modem serial port pinouts
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Table 24 Terminal serial port pinouts Pin Signal Description 8 ---- ---- 9 ---- ---- Modem serial port specifications Each CP card has a modem serial port (labeled RS-232) with a fully RS-232 compliant DB-9 connector. NOTE: For dust and electrostatic discharge (ESD) protection, keep the cover on the serial port whenever the port is not in use. The modem port can be used for attaching a modem to each CP card. The Core Switch 2/64 and SAN Director 2/128 detect modems only during the power-on or reboot sequences, and automatically initializes them for operation. If modems are connected to an operating switch, a power on/off cycle, reboot, or fast reboot is required to detect the modem(s). If both modems are connected to the telephone line by a Y cable, the active CP card answers on the first ring; if the active CP card fails to answer, the standby CP card answers on the seventh ring. The pinouts for the modem serial port are shown in Table 25. Table 25 Modem serial port pinouts Pin Signal Description 1 DCD Data Carrier Detect 2 RxData Receive Data 3 TxData Transmit Data 4 DTR Data Term Ready 5 GND Logic Ground 6 DSR Data Set Ready 7 RTS Request to Send Core Switch 2/64 and SAN Director 2/128 installation guide 145
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