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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Kongsberg Seatex / Kongsberg Maritime |
| Model | DPS 112 |
| Product Type | Marine Differential Global Navigation Satellite System sensor |
| Primary Function | Provides corrected navigation position data for vessel systems |
| GNSS Constellations | GPS L1/L2 and GLONASS L1/L2 |
| Augmentation Support | SBAS, IALA beacon corrections, and Fugro Seastar SGG service |
| Integrated Receiver | L-band receiver for Fugro Seastar SGG correction service |
| Optional Correction Input | Standard RTCM correction input |
| Reported Global Accuracy | Less than 1 m with Seastar SGG service, CEP 95%, subject to service and installation conditions |
| Reported SBAS Accuracy | 1–2 m, CEP 95%, within applicable SBAS coverage |
| Reported IALA Beacon Accuracy | 1–3 m, CEP 95%, subject to beacon coverage and installation conditions |
| Position Update Rate | 1 Hz |
| Network Interface | Ethernet |
| Local User Interface | Embedded keypad and display |
| External Display | Optional |
| Software Maintenance | USB software-update support |
| External Data Interfaces | Configurable output for external systems; confirm exact port type and protocol from physical unit documentation |
| Processing Unit Supply | 100–240 V AC, 50/60 Hz reported in an instruction-manual listing; verify from the unit label |
| Antenna Requirement | External GNSS antenna with clear sky view and correctly installed coaxial cable |
| Intended Environment | Marine navigation, vessel positioning, and offshore support applications |
| Lifecycle Status | Verify current support, correction-service compatibility, and firmware status with Kongsberg Maritime before deployment |
The DPS 112 is identified as a Kongsberg Seatex DGNSS sensor combining GPS L1/L2, GLONASS L1/L2, SBAS, IALA beacon capability, an integrated L-band receiver for Fugro Seastar SGG, optional RTCM correction input, Ethernet, USB updates, and a local keypad/display. Reported output rate is 1 Hz.
Product Introduction
The Kongsberg Seatex DPS112 is a marine DGNSS positioning sensor that combines satellite navigation with correction services to deliver more accurate vessel-position data than standalone GPS. It receives GPS and GLONASS signals and can use SBAS, IALA beacon corrections, RTCM input, or Fugro Seastar SGG L-band corrections. It is suited to vessel navigation, dynamic positioning support, hydrographic work, offshore operations, and bridge-system integration.
The DPS112 is not a generic industrial PLC module. Replacement compatibility depends on the processing unit, antenna, correction-service subscription, firmware, output protocol, vessel network, interface cables, and installed bridge or DP-system configuration. Match the complete Kongsberg part number and system documentation before ordering.
DPS112
DPS112
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No position output on display or network | Unit has no AC power, blown fuse, failed power cable, Ethernet issue, processing-unit fault | ✅ High | Measure supply voltage at the DPS112 power input and verify it matches the unit label. Check power LED, local display, fuse condition, and Ethernet link LEDs. | Repair incoming power and network connections before replacing the DPS112. |
| Position is available but accuracy is poor | Correction service unavailable, antenna obstruction, multipath, damaged coax, wrong correction source, expired subscription | ⚠️ Medium | Check correction-status page, satellite status, antenna view, cable condition, and correction age. Compare standalone GNSS position against corrected-position status. | Restore correction data and inspect antenna installation. Do not replace the receiver before checking correction-service status. |
| No Seastar SGG correction signal | L-band antenna issue, no active service, wrong satellite selection, obstructed sky view, firmware/configuration issue | ⚠️ Medium | Verify L-band correction status on the local display. Check service activation, antenna cable continuity, and unobstructed sky view. | Confirm the correction subscription and configuration. Contact the correction-service provider before replacing hardware. |
| SBAS correction unavailable | Vessel outside SBAS coverage, obstructed antenna, receiver settings issue, weak satellite signal | ❌ Usually low | Review current operating location and SBAS status. Verify antenna placement and receiver configuration. | Use an appropriate correction method for the vessel’s operating area. SBAS performance depends on regional coverage. |
| Ethernet link is active but bridge system receives no data | Incorrect IP address, wrong port or protocol, output sentence configuration, network firewall, cable issue | ⚠️ Medium | Verify Ethernet link LEDs, DPS112 IP settings, configured output protocol, bridge-system port settings, and network route. | Compare settings with the commissioning record. Do not change output format on a live vessel network without approval. |
| Position jumps or intermittently drops out | Antenna cable damage, water ingress, loose connector, multipath reflections, intermittent power, satellite blockage | ⚠️ Medium | Inspect antenna cable and connectors for corrosion or water ingress. Review satellite signal-to-noise data and power-event history. | Repair cabling and improve antenna placement before replacing the DPS112. |
| System reports invalid or stale position | Loss of GNSS satellites, correction-data age too high, antenna fault, output configuration mismatch, network latency | ✅ Medium | Check satellite count, correction age, antenna alarm status, and timestamp of received position data at the bridge or DP system. | Investigate signal reception and data path. Treat stale navigation data as operationally significant. |
| USB update fails | Incorrect firmware package, incompatible unit revision, corrupt USB media, interrupted power, unsupported file format | ⚠️ Medium | Confirm the exact hardware revision and approved Kongsberg firmware package. Use clean, verified USB media and stable power. | Do not load unverified firmware. Back up configuration and follow the OEM update procedure. |
| Local keypad/display works but external interface is dead | Incorrect output configuration, failed interface cable, serial/Ethernet port issue, bridge-system input fault | ⚠️ Medium | Confirm valid local position first. Then inspect configured external output, cable pinout, port settings, and receiver-side diagnostics. | Troubleshoot the downstream system before replacing . |
| Replacement does not communicate with vessel systems | Different firmware, lost IP settings, mismatched output sentence protocol, incompatible interface option, missing configuration backup | ✅ High | Photograph and export the old configuration before removal. Compare firmware, network settings, port configuration, correction setup, and output format. | Restore the approved vessel configuration and test alongside independent navigation sources before operational use. |
❗ Navigation warning: Do not use a single or any single GNSS receiver as the only means of navigation or position assurance. Follow the vessel’s approved navigation procedures, use independent position sources where required, and treat stale, degraded, or uncorrected data as a condition requiring operational assessment.
❗ Antenna warning: The antenna installation controls a large part of real-world accuracy. A receiver replacement will not fix poor placement near radar, masts, exhaust structures, metal deck reflections, or damaged coaxial cable. Check antenna view, cable condition, grounding, and correction status first.
If you need technical support, provide the full serial and part number, firmware version, display photos, satellite-status screen, correction-status screen, antenna and coaxial-cable photos, supply-voltage reading, Ethernet settings, and the receiving bridge or DP-system diagnostics.
Frequently Asked Questions
What is the Kongsberg ?
The Kongsberg Seatex is a marine DGNSS sensor that provides corrected vessel position data. It combines GPS L1/L2, GLONASS L1/L2, and correction sources such as SBAS, IALA beacon services, RTCM, and Fugro Seastar SGG L-band corrections.
What position accuracy can provide?
Available product information reports less than 1 m global DGNSS accuracy with Fugro Seastar SGG service, 1–2 m with SBAS, and 1–3 m with IALA beacon corrections. These values are reported as CEP 95% under low-multipath conditions with a clear sky view. Actual accuracy depends on antenna placement, correction-service availability, satellite visibility, vessel environment, and operating region.
Does support GPS and GLONASS?
Yes. The is reported to receive GPS L1/L2 and GLONASS L1/L2 signals. This multi-constellation design improves satellite availability compared with a GPS-only receiver, especially where vessel structures partially obstruct the sky.
Does have Ethernet?
Yes. Available documentation identifies Ethernet as a interface. The receiver also has an embedded keypad and display, USB update capability, configurable external outputs, and an optional external display. Confirm the exact port configuration and data protocol from the installed unit documentation.
Is the same as an AEG or Modicon PLC module?
No. In the available product evidence, identifies a Kongsberg Seatex marine DGNSS sensor. It should not be confused with the legacy AEG Modicon DAP112, which is a 32-point 24 V DC, 0.5 A digital output module. Similar-looking part numbers can belong to completely unrelated product families.
Can I replace with another GNSS receiver?
Not as a simple swap. Confirm the antenna type, coaxial cable and connector, correction service, output protocol, message format, interface voltage, network settings, vessel integration, bridge-system acceptance, and regulatory or class requirements. A generic GNSS receiver may provide a position but fail to deliver the expected correction source or output format.
Can I hot-swap ?
Do not assume hot swapping is acceptable. Removing the receiver can interrupt position data to bridge, DP, alarm, or logging systems. Place the vessel system into an approved maintenance condition, verify redundant position sources are healthy, isolate power as required, and follow the vessel’s navigation and maintenance procedures.
Will replacing erase configuration?
It can. Network settings, correction-service configuration, output sentence setup, port settings, alarms, and firmware may differ between units. Back up configuration before removal and record every external interface setting. If the old unit is still operational, capture screenshots or export configuration before the swap.
Why is a New Surplus cheaper than a factory-supplied unit?
New Surplus stock can originate from vessel refits, canceled offshore projects, spare-part stores, system upgrades, or distributor overstock. Lower pricing may reflect product age, support status, missing accessories, or an expired correction-service arrangement. Request exact-unit photos, serial-number details, antenna and cable inclusion details, firmware version, configuration status, warranty terms, and a functional GNSS test record.
What testing should a supplier perform before shipping a refurbished ?
Request physical inspection for corrosion, water ingress, damaged connectors, keypad and display condition, and antenna-port wear; controlled power-up; GNSS satellite acquisition; position-output verification; Ethernet communication test; local display check; correction-receiver status test where an active service is available; and a documented burn-in period. A bench test cannot replicate real vessel antenna placement, marine multipath, correction subscription status, bridge integration, or operational redundancy requirements.
