Led Status Indicators; Call Progress And Status - Honeywell CNI2 Operating And Installation Manual

Cellular network interface - 2 mercury instruments

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Here is a typical sequence from the time the CNI2 is powered up to the time it completes its first

call. The

green

LED is mostly used to indicate the status of the radio and the network whereas

the

red

LED indicates the progress of the call. After a reset all future calls start at Step-3.

1. Upon power-up or reset both LEDs turn on for 10-20 seconds:

2. The

red

LED will turn off.

3. The

green

LED will start flashing once per second.

4. The radio is powered up and initialized for communications. If this is successful the

green

LED's flash rate will double.

5. When adequate signal is detected and the radio registers with the network the

LED's flash rate will double again if the signal strength is less than 3 bars or will triple for

signal strength of 3 bars or more.

6. The unit will start a call sequence.

7. While the

green

8. When the unit has established a data connection to the network the

will double.

9. When the unit has gained access to the internet (packet mode only) the

rate will double again.

10. When the unit establishes a connection with the data collection system (DC-2009

MV90

) both LEDs will light solidly at half intensity. The

and decrease (flicker) during the time that the CNI2 is communicating with the host.

11. Once the call has completed both LEDs will return to flashing rapidly.

12. The

red

LED's flash rate will reduce as the data and network connections are

terminated.

13. At the end of a successful call both LEDs will light solidly for 3 seconds. If the call was

unsuccessful an error code will be displayed twice. A call will be attempted again later

using the retry strategy defined by you. See the next section for a list of error codes.

14. The

red

LED turns off.

15. The

green

LED returns to the slowest flash rate as the radio is being powered down.

16. Both LEDs are turned off when the unit enters its "sleep" mode.

CNI2 Operating and Installation Guide