Panel Transmission Monitoring (Ptm); Cellular Communications Sequence - Johnson Controls 3G4010 V4.0 Manuel D'installation

Panel transmission monitoring (PTM)

The 3G4010/LE4010/LE4010E can also monitor the panel's attempt to communicate with the central station. If
it determines that the panel is having difficulty, it switches the line to the cellular network. This feature is only
active when the 3G4010/LE4010/LE4010E is configured as a backup communicator. This feature is in addition to the
regular line voltage detection.
The 3G4010/LE4010/LE4010E monitors the phone line for four consecutive failed attempts within a 12-minute
window. A failed attempt is assumed to have occurred when a line seizure takes place during dialing (either the
alarm panel or the customer telephone), but no 1400Hz tone (Contact ID kiss-off) or 2025Hz tone (SIA kiss-off) is
sent from the receiver.
Once the conditions for a failed attempt are met, the 3G4010/LE4010/LE4010E connects the panel to the cellular
network to communicate the events. When the 3G4010/LE4010/LE4010E switches the line it stays in this mode until
the panel hangs up. On the next event the 3G4010/LE4010/LE4010E restarts the error detection sequence before
switching. The 3G4010/LE4010/LE4010E performs this sequence on any phone number that is detected on the line.
Specific central station phone numbers can be programmed into the 3G4010/LE4010/LE4010E if desired. Up to
four, 20-digit numbers can be added to your profile at Connect 24. If programmed, the 3G4010/LE4010/LE4010E
only looks for a Contact ID or SIA kiss-off after these numbers are dialed. A Telephone Line Monitoring trouble
(PGM output activation and/or reporting code if applicable) is also activated and/or transmitted when the PTM is
activated. A restoral is sent at the end of the call.

Cellular communications sequence

When an alarm is triggered:
• The control panel goes off-hook.
• The 3G4010/LE4010/LE4010E asserts a dial tone.
• The control panel dials the number of the central station. Ensure that the alarm panel inserts a minimum one
second pause, or has Dial Tone Search enabled before dialing the number.
• The 3G4010/LE4010/LE4010E detects the DTMF dialing and stops dial tone.
Note: The 3G4010/LE4010/LE4010E is unable to decode pulse dialing.
If the panel is programmed for Contact ID format:
• The 3G4010/LE4010/LE4010E sends the required Contact ID dual-tone handshake to the panel.
• After receiving the handshake, the control panel transmits an alarm message in Contact ID format.
• The 3G4010/LE4010/LE4010E decodes and transforms the Contact ID digits into an IP packet and sends it to the
central station receiver over the cellular network.
• The central station receiver acknowledges the alarm and sends a command to the 3G4010/LE4010/LE4010E to
generate the corresponding 1400Hz Kiss-off signal for a minimum of 800 milliseconds.
After the 3G4010/LE4010/LE4010E generates a Kiss-off signal, it sends the next alarm or, if no further alarms need
to be
sent, the control panel goes on-hook.
If the panel is programmed for SIA (300 baud) format:
• The 3G4010/LE4010/LE4010E sends the required SIA handshake to the panel.
• After receiving the handshake, the control panel transmits an alarm message in the SIA format.
• The 3G4010/LE4010/LE4010E decodes and transforms the SIA events into an IP packet that it sends to the
central station receiver over the cellular network.
• The central station's receiver acknowledges the alarm and sends a command to the 3G4010/LE4010/LE4010E to
generate the corresponding 2025Hz kiss-off signal for a minimum of one second.
3G4010 V4.0 / LE4010 V5.1 / LE4010E V5.1 Installation manual
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Operating principles
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