RS-232 to RS-449 Connections

In order to connect RS-232 devices to the adapter, you need to install an externally powered RS-449 to RS-232 interface converter to each DB-37 connector on which you intend to connect an RS-232 device. A converter is necessary because of incompatibilities between RS-232 and RS-449 signal levels.

To obtain an externally powered RS-232 to RS-449 interface converter, contact:

Black Box Corporation at:

http://www.blackbox.com

Note – Use only externally powered RS-449 devices with the SunHSI/U adapter.

Chapter 2 SunHSI/U Adapter Installation 7

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Sun Microsystems Interface Adapter manual RS-232 to RS-449 Connections