User guide

Chapter 2: Installation 11
To connect devices, modems and PDUs to serial ports:
Make sure the crossover cable used to connect a device has the same pinout type that is configured
in the software for the port (either Cyclades or Cisco).
1. Make sure the devices to be connected are turned off.
2. Use CAT 5 or greater crossover cables to connect the devices to the console server, using an
adaptor, if necessary.
3. To connect modems, use straight-through CAT 5 or greater cables, with an appropriate
connector or adaptor (USB, DB-9 or DB-25) for the modem.
NOTE: To comply with EMC requirements, use shielded cables for all port connections.
WARNING: Do not turn on the power on the connected devices until after the console server is turned on.
Daisy chaining power devices
The following figure shows two daisy-chained Cyclades PDUs connected to serial port 2 on a
console server.
3 RxD IN
4 GND N/A
5 Not Used N/A
6 TxD OUT
7 DTR OUT
8 RTS OUT
Table 2.5: Cisco Serial Port Pinout (Continued)
Pin No. Signal Name Input/Output