Support on your “CM”-monitoring product

This page provides support information on “CM” products. These are the Mobeye products whose article code starts with CM.
Click the icon to find information about the subject.

How to

The SIM card
  • how to place the SIM card?
The inputs
  • difference between potential free and analog
  • what sensors to connect to the inputs
  • multiple sensors per input
  • what is the max. length of a sensor wire?
  • how to get an alarm restore message?
  • how to prevent rapidly changing inputs states or false alarm?
  • how to calibrate analog inputs?
The output
  • what is an open collector output?
Explanation of the LED
  • LED behaviour (outside)
  • LED behaviour (on circuit board)
Battery replacement
  • when to replace the batteries?
  • what brand of batteries?


Where to find product documentation?
  • manuals
  • older manuals
  • datasheets
  • CE declaration of conformity
Where to buy a Mobeye product?
  • sales information
Where to find information on the portal?
  • information and intro video
  • registration and user manual
  • SIM/portal prices
  • more portal support

Question and Answer

How to place the SIM card

See the steps in the picture:

LED behaviour (outside)

  • LED flashes green, 1 second on / 1 second off
    The device has not yet been programmed. Activate the device in the Mobeye Internet Portal or (if “standalone”) program in at least one telephone number (TEL1).
  • LED blinks briefly every 3 seconds
    The device is on and battery operated.
  • LED is green continuously
    The device is on and externally powered.
  • LED flashes fast
    The devices communicates with the Mobeye Internet Portal.
  • LED flashes red/green
    The GSM module is looking for network connection. Wait for the connection to be established. If this takes longer than 3 minutes, follow the steps under “2x red” or “3x red”.
  • LED flashes green 3x
    The device received a correct SMS command.
  • LED flashes red 5x
    The device received an incorrect SMS command.
  • LED flashes red 2x every 3 seconds
    There is no GSM connection. Check the SIM card in a mobile phone.
    Mobeye SIM? Consult Mobeye.
    Your own SIM? Replace the SIM card with a card from another provider; place the module in a different location.
  • LED flashes red 3x every 3 seconds
    SIM card error, the PIN is blocked or (in the situation of your own prepaid SIM) there is no credit.
    Mobeye SIM? Consult Mobeye.
    Your own SIM? Check the SIM card in a mobile phone; remove the PIN; check the credit; replace the SIM card.
  • LED flashes red 4x every 3 seconds (at startup)
    Low battery voltage, replace the batteries.

LED behaviour (inside, on the circuit board)

  • LED is off
    GSM module is off, or it is calling.
  • LED is green en switches off once per 3 seconds
    GSM module does not have network connection.
  • LED is on for 1 second / off for 1 second
    GSM module searches for a network connection.
  • LED is on
    Problem with GSM module, SIM card or low battery voltage.

Replacing the batteries

If a device is fully battery operated, without external voltage, the batteries should last at least one year. This is even with a daily (test) report. If the GSM strength on site is weak, it may be shorter. Like any mobile phone, the internal GSM module will boost the power to find signal. This affects battery usage.
If a device is externally powered and the batteries are used as a backup in the event of a power failure, they will last much longer. This is more than 3 years for the latest Mobeye devices.
A message follows at low battery voltage. For devices that are connected to the Mobeye Internet Portal, this is a “service notification”. If it is missed, the absence of a test message (“keep alive”) is a second indicator. A standalone device sends the low battery notification to the first telephone number (TEL1).

Connecting multiple sensors to an input

Multiple sensors can be connected to one NO/NC alarm input. Place a normally closed input contact in series, a normally open contact in parallel. In this way, an activated sensor will trigger an input alarm. Since there is one text per input, it does not provide specific information about the activated sensor.

How long can the wire of a sensor be?

The maximum allowed length of the wire of a sensor depends on the type of signal, the wire thickness and the quality of the wire:
– conductive copper wire for potential-free signals: max. 100 meters with thin wire; see info.
– digital extension cable for the Mobeye water sensor, temperature sensor: see info.

How do I set a notification for alarm recovery?

For some devices, such as the Mobeye PowerGuard (CM2100) and Mobeye CM-Guard (CM2000), the alarm recovery notification on input 1 and input 2 is not set by default. This can be done as follows:
– bring the unit in programming mode
– send following SMS text message to the unit: 1111 IN1RESET: SEND
– send following SMS text message to the unit: 1111 IN2RESET: SEND
When using the Mobeye Internet Portal: the device sends a recovery message to the Mobeye Internet Portal, which forwards a default alarm recovery text to the “alarm” contacts (SMS / e-mail). To be able to change it to a specific text, consult Mobeye.
For standalone use: the device sends a recovery message as SMS. Change the text for input 1 via 1111 TEXT5:xxx (with xxx your own text), for input 2 via 1111 TEXT6:xxx. Check the texts via 1111 TEXT? and the action rules via 1111 ARLREPORT?

How to prevent alternating input behaviour or false alarm?

If the alarm system incorrectly detects alarm and alarm recovery in quick succession, it is recommended to program an entry delay.
If the sensor output contact gives multiple signals when it is in alarm state, it is recommended to program an idle time on the input.

How to calibrate analog inputs?

The analog inputs of the Mobeye devices are pre-calibrated. For the CM2600 and CML2055 this was done at 0V and 48V. For an even more accurate measurement, calibrate the input to the alarm value, using a (calibrated) voltage generator. Make sure the device is in programming mode and the input type is set to AN. Apply a continuous voltage to the input. Send the following SMS to the device:
For input 1, calibration value 12V, code 1111:
1111 CALIBRATE1:12
Immediately afterwards request the status to check the value: 1111 STATUS?
Use CALIBRATE2 for input 2.

Manuals for earlier hardware and software versions

You will find the latest manuals on the documentation page. For most CM products, these are suitable from SW 4.0 and higher. Are you looking for manuals for an earlier version? Consult us.

Declaration of Conformity

The Declaration of Conformity can be found at the end of the product manual. You will find the latest manuals on the documentation page.