Avocent SST-64P, Installer/User Manual

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18 SST-64P PCI Adapter
Installer/User Manual
Modular Cables
The following cable diagrams show how to build your own cables to go between a port module and
serial devices such as terminals, printers, PCs and modems.
RJ-45 modular cable is a flat cable often used for wiring telephones inside of buildings. The cable
is terminated at each end with an RJ-45 modular plug (connector) which is inserted into the
modular jack of an appropriate wiring module. Standard modular cables available from Avocent
are reversing. That is, the pins are reversed on each end so that pin 1 on one end is connected to pin
10 on the opposite end. Figure 3.6 shows the signals passed through modular cables when
connected to a port module serial port.
Figure 3.6: RJ-45 Modular Cable Signals
Modular Adapters
Figure 3.7 shows the internal wiring for the 10-wire modular adapters. Ten-wire modular adapters
convert modular jacks to DB-25 (RS-232) connectors. Use the information in Figure 3.7 with the
documentation provided with your host computer equipment as a guide to select the correct
modular wiring accessories.
SST Serial Port Peripheral Device