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The Network 8000 GCM-84000 series has two RS-232 communication ports. Which one is PORT1 and which is PORT2?

Issue

The Network 8000 GCM-84000 series has two RS-232 communication ports. Which one is PORT1 and which is PORT2?

Environment

Network 8000 GCM-84000 series

Cause

Use the RS-232 ports to connect personal computer-based graphical operator interfaces, VT-100 class terminals, and/or auto-dial/auto-answer modems for remote telecommunications.

Dual RS-232 ports can be used to connect personal computer-based graphical 
operator interfaces, VT-100 class terminals, and/or auto-dial/auto-answer modems for 
remote telecommunications.
Dual RS-232 ports can be used to connect personal computer-based graphical 
operator interfaces, VT-100 class terminals, and/or auto-dial/auto-answer modems for 
remote telecommunications.
Dual RS-232 ports can be used to connect personal computer-based graphical 
operator interfaces, VT-100 class terminals, and/or auto-dial/auto-answer modems for 
remote telecommunications.

Resolution

PORT1 is the top port and PORT2 is the bottom port. PORT2 is designed with better data buffering and should be the first choice when connecting a computer to the GCM for any type of data exchange.

See the Network 8000 Service & Troubleshooting Manual (F-23024, page 88).

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