Serial Port Configuration Screen; Port Select Id; Port Enable; Max Bps. Data Bits, Parity, Stop Bits - Honeywell CNI2 Operating And Installation Manual

CNI2 Operating and Installation Guide

SERIAL PORT CONFIGURATION SCREEN

Besides processing alarms and pulse data the CNI2 can act as a "transparent" modem. This
allows the central computer to communicate directly with a device connected to the CNI2's RS-
232 serial port. An option board called the Dual Port Multiplexer allows a second port to be
added. Future expansion boards will offer even more ports.
Serial Port Configuration Screen

Port Select ID

Each serial port must be assigned a unique Port Select ID number. The format follows that of
the Primary RUID discussed earlier. Serial Port-1 is the physical port TB2 on the CNI2 board
and is automatically set to the Primary RUID. Its Port Select ID is grayed out and cannot be
changed.

Port Enable

Check the Port Enabled box to turn on a serial port. Ports must be enabled in ascending order
starting with Port-1. For instance if Port-1 is enabled, and then you skip to Port-4 and enable it,
this will automatically enable Ports-2 and 3 as well. Conversely if Ports 1 thru 4 are enabled
and you disable Port-2, this will automatically disable Ports-3 and 4 as well.

Max BPS. Data Bits, Parity, Stop Bits

These parameters must match the settings of the device connected to each serial port.
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