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Professional Automation Computer Crestron PAC2
“Port Settings” Window: Default PC Settings for RS-232 Communication with the PAC2.
To verify communication, click Diagnostics | Establish Communications (Find
Rack). This should display a window that gives the COM port and baud rate.
TCP/IP Connection
Before you can communicate with the PAC2 over TCP/IP, you must use the RS-232
connection just described to configure the unit’s TCP/IP settings. You must also
have an optional Z-Bus card installed in the control system.
1. Open Viewport and click Functions | Set Control System IP
Information.
2. Enter the IP address, IP mask and default router in the text fields. All of
these terms are explained in detail in the Crestron e-Control Reference
Guide, Doc. 6052. The latest version is available as a PDF on the
Crestron website (www.crestron.com).
3. Click OK to set the new IP information.
Once you have assigned the IP settings, you can continue to communicate with the
PAC2 using the RS-232 connection, or you can establish a TCP/IP connection.
For TCP/IP, use CAT5 straight through cables with 8-pin RJ45 connectors to
connect the LAN port on the PAC2 and the LAN port on the PC to the Ethernet hub.
Alternatively, you can use a CAT5 crossover cable to connect the two LAN ports
directly, without using a hub. The following figure illustrates pinouts for straight
through and crossover RJ45 cables. Pins 4, 5, 7, and 8 are not used.
RJ45 Pinouts
20 • Professional Automation Computer: PAC2 Operations Guide – Doc. 5941