Electrical - General - Honeywell CNI2 Operating And Installation Manual

CNI2 Operating and Installation Guide

ELECTRICAL - GENERAL

Pulse Count Retention Memory
32k bytes or 60K bytes (user-selectable)
Flash Program Memory
116k bytes. Holds operating system and configuration values.
Static RAM Memory
8k bytes.
Clocks
Main frequency: 15.360 MHz
Time keeping frequency: 32.768 kHz
"Sleep" frequency: 200 kHz nominal (internal oscillator), bursting to 15 Mhz during input sample
periods in data logger mode.
Logic Supply Voltage
3.3V nominal. This supply is also available on Expansion Port #1 (J8) and Expansion Port #2
(J3) but is intended to be used as a reference and not as a power source.
Auxiliary Supply Voltage
3.6V, 1.5A max. Normally only used to power the cellular and is normally under the control of
the processor. This supply is also available on Expansion Port #2 (J3), the serial port terminal
block (TB2) and the middle pins of the J1 and J2 power input connectors. These connections
are current-limited with a replaceable 250 mA fuse (Littelfuse 251-250 or equivalent).
155