Honeywell TAM-242 Satellite Tracking Modem Unit

Module Feature

TAM-242 is Honeywell compact satellite telemetry terminal built on Inmarsat IsatData Pro service, integrated with GPS receiver for global positioning. It provides two-way low-bandwidth satellite messaging for status reports, alarm uploads and remote commands in areas without cellular coverage. The radio operates in 1626.5–1660.5 MHz L-band with EIRP 0–9 dBW. The sealed metal housing meets IP66 ingress protection, suitable for offshore, remote pipeline, rail container and isolated field sites. It supports up to 50 message channels, local RS232 asynchronous serial port at 9600 baud N-8-1 for connection with sensors, PLC or data logger. Low power design supports battery solar-powered unattended deployments.

Working principle

The internal GNSS receiver acquires satellite fixes to get geographic coordinates. The embedded controller packs position, sensor readings and status data into IsatData Pro messages. The L-band transceiver transmits packets to the Inmarsat satellite constellation; messages are routed to the cloud backend. Downstream commands and configuration updates are received from satellite and passed to local equipment over RS232.

Onboard components

L-band Inmarsat transceiver module, GNSS GPS receiver, baseband processing PCB, RS232 interface circuit, power regulation and surge protection, internal memory for message queue, sealed metal enclosure, external antenna connectors.

LED indicators

Front status LEDs for power, GNSS fix, satellite registration, transmit activity and fault alarm.

Hardware self‑diagnosis

Self-diagnosis covers GNSS signal loss, antenna open/short, satellite registration failure, supply undervoltage/overvoltage, internal communication bus error and message transmission timeout. Event and fault logs are stored locally.

Programming software

Host configuration software for message schedules, reporting intervals, alarm triggers and remote firmware upgrade; backend portal for tracking visualization and data export.

Electrical & Process Parameters

Model:TAM-242 Brand:Honeywell Device type:IsatData Pro Satellite Telemetry Terminal Radio band:1626.5–1660.5 MHz Positioning:GPS GNSS Serial interface:RS232, 9600 baud, N,8,1 IP rating:IP66 Dimension:247 × 178 × 48 mm Weight:1.5 kg Function:Global two-way satellite tracking and telemetry for remote assets

Mechanical & Structure

Mounting:Wall or equipment bracket mount Protection class:IP66 Housing:Sealed coated metal enclosure

Environmental

Operating temperature:0℃ ~ +45℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:≤95% non‑condensing @40℃ Certification:CE, Inmarsat type approved Status:Honeywell original satellite telemetry spare

Installation

Mount terminal in sheltered location, install external L-band/GNSS antenna with clear sky view. Route antenna cable and RS232 sensor cable. Apply correct DC supply. Configure reporting interval and message profiles via host software. Verify GNSS fix and satellite registration before field deployment.

Interface

L-band satellite antenna port, GNSS antenna port, RS232 serial terminal, DC power input, ground terminal.

Diagnostic

No GNSS fix: Antenna blocked, cable damage or LNA fault. Cannot register to satellite: Antenna mismatch, transmit band error, low supply voltage. Message send timeout: Poor satellite signal, message queue overflow. Serial no response: Wrong baud rate, wiring reversal.

Product Brief

Honeywell TAM-242 rugged satellite tracking terminal, Inmarsat IsatData Pro plus GPS positioning, RS232 interface, IP66 enclosure, designed for remote marine, pipeline and container asset monitoring.