Pulse Counting Inputs; Outputs - Honeywell CNI2 Operating And Installation Manual

The inputs on TB4 will be reported as "Alarm-1" and "Alarm-2" to the data collection system.
Either can be Form-A (normally open) or Form-B (normally closed). Or they can be combined
as a Form-C ("KYZ") pair, in which case the combination is reported as "Alarm-1" to the data
collection system. A Form-C switch consists of one normally-open and one normally-closed
switch. If at any time both are open or closed this is considered a failure and will be reported as
an "Alarm-2" alarm.

Pulse Counting Inputs

Any of the six signals can be used as pulse-counting inputs, but no more than four can be
configured this way because that's all the data collection system will accept. If any input is
configured as a pulse-counting input then it cannot be used as an alarm or status input. Pulse-
counting inputs can be either Form-A, Form-B or Form-C switches.

Outputs

Any of the six signals can be configured as outputs. These are low-level (+3.3V) logic signals
with very low current (2 mA) capabilities. In many cases these signals will need additional
amplification or conversion by external equipment.
- Output Under Host Control: This configuration can be used to control external equipment from
the central office, such as a warning light, an audio alarm or a pump. This is only supported
when using the "Relay Settings" feature in the DC-2009
changed to the new setting only after a successful call.
- Output Follows Input #": In this configuration the output follows any one of the inputs
("repeater"). This allows other external equipment to have access to the same pulse or alarm
information that is being processed by the CNI2.
An output has strict limitations with respect to voltage and current.
See the specifications section to avoid damage to the CNI2 board.
CNI2 Operating and Installation Guide
WARNING
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data collection system. The output is
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