The communicator continuously supervises the connection to the alarm panel and the cellular and LAN (when not set in cellular-only mode) pathways. If any of these pathways becomes inoperative, the communicator can generate a relay trip output that can be connected to a zone input of the host alarm panel. These System Trouble Conditions (STCs) are described below.
LAN Failure Condition (LANFC)
The communicator monitors the LAN connection by verifying that messages can be sent to the Telguard Communications Center (TCC) and an acknowledgment returned. If an initiated message cannot reach the TCC, a LAN Failure Condition (LANFC) is declared and the LEDs indicate the type of trouble condition. The System Trouble Condition LED (STC LED 2) will flash 3 times, and the STC relay will trip after a programmable period of time. LED 6 (LAN STC LED) will also flash in a specific pattern to indicate the possible cause of the LANFC issue:
- Single flash: LAN connection not detected. Check the wiring connection between the communicator’s silver RJ-45 and premises LAN port (typically a router or switch).
- Two flashes: Unable to obtain IP Address from LAN. Check with the System Administrator for the premises. A static IP address may be needed.
- Three flashes: Unable to reach Internet. Check with the System Administrator for the premises. The Gateway Address may be incorrect.
- Four flashes: Expected TCC acknowledgement not received. Call Telguard Technical Support as additional troubleshooting will be required.
NOTE: When the communicator is configured to use a sole communications path (cellular), the LAN Failure Condition (LANFC) is not applicable and LED 6 will remain off.
No Service Condition (NSC)
A no service condition (NSC) occurs when the communicator is unable to register with the cellular network.
NSC can be configured to trip the supervisory relay output (STC relay) after a programmable period of time. The STC LED will flash 4 times immediately after losing cellular service and dial-tone will cease to be provided, independent of the STC assertion and programmed assertion delay. NSC restoral occurs immediately after cellular service has been acquired.
Radio Communications Failure Condition (RFC)
Radio communications failure condition (RFC) occurs when the communicator is unable to receive a response from the TCC. When RFC is declared, the STC LED will flash 5 times, dial-tone will cease, and the STC relay will trip as programmed. Restoral of this condition occurs after 10 minutes or when a message is received from the TCC.
NOTE: When End-to-End acknowledgement feature is enabled, a message that fails to deliver to the Central Station will trigger an RFC condition.
Panel Presence Failure (PPF)
Panel presence failure condition (PPF) occurs when the communicator is unable to detect the presence of the alarm panel. PPF is indicated by the STC LED flashing 7 times. A supervisory report is generated and sent to the TCC for Central Station delivery upon detection of PPF. Restoral of this condition occurs when the alarm panel is detected as present for the selected delay time.
NOTE: The factory default for PPF is Disabled and needs to be Enabled for its use. For the PPF feature to work, Tip, Ring, and the return connections for Tip and Ring must be connected between the panel and the communicator.
UL/ULC Compliance Note: If the wiring distance between the panel and the communicator is greater than 20 ft. (18m or in different rooms in Canada) or the connection is not mechanically protected (metal conduit required in Canada), PPF must be enabled. Since fire systems must comply with these restrictions (UL 864, ULC-S559), PPF is not required for fire systems.