Model 922-QSS
SUBSEA QUALIFIED SERIAL / 4-20 mA / CAN BUS GATEWAY

The Model 922-QSS is a subsea qualified SIIS Level 1, 2 and IWIS gateway enabling sensors, valves and other I/O to communicate with a modern SIIS level 3 control system. A single model 922-QSS supports multiple serial, fault tolerant CAN Bus and 4-20 mA channels reducing card count and architecture complexity.
Each serial channel is completely independent, providing maximum fault tolerance. The fault tolerant CAN Bus and 4-20 mA are on a separate expansion card, and provide high channel isolation, and protection features.
Real time advanced diagnostics are provided via standard Modbus TCP available over any of the Ethernet connections.
Compatible with other 922 products (e.g. 922-MES) and provides a unified software interface to simplify integration.
Features
- 4 serial channels supporting RS-232 / 422 / 485, software configurable
- Serial-UDP, Modbus RTU – Modbus TCP, PPP-IP
- Option for 4 x SIIS level 2 (CAN Bus per ISO 11893-3, Fault Tolerant) and 20 x SIIS level 1 (4-20 mA) with expansion card
- Isolation, reverse polarity protection, over-voltage protection
- 3 port SIIS level 3 switch
- DHCP-configured IP address with static IP backup
- Qualified per ISO 13628-6 / API 17F
- MTBF > 200,000 hours at +40°C
- Advanced diagnostics and configuration using Modbus TCP
- 3U Eurocard form-factor with options for front panel
- Failsafe remote firmware update
Benefits
- Proven SIIS level I, II, III and IWIS solution for subsea communications
- Reduces cost by using standard configurations
- Reduces card count and architecture complexity by supporting multiple I/O
- Simplifies integration with unified software interface
922-QSS Specifications | |
---|---|
SIIS Level 2 (Serial RS-232 / 422 IWIS / 485) |
|
No. Ports |
4 (4 on 96-pin DIN) |
Format |
RS-232 / 422 / 485, software configurable |
Baud Rate |
230.4 kbaud max. |
Protection |
Over-voltage up to ±24V; ESD ±15 kV air, ±8 kV contact |
Isolation |
1000 Vrms |
SIIS Level 1 (4-20 mA) * |
|
No. Channels |
20 (20 on Expansion Card 96-pin DIN) |
Sampling |
1 ms |
Resolution |
± 0.25% F.S. |
Protection |
Over-voltage up to ±25V; ESD ±15 kV air, ±8 kV contact |
Isolation |
1000 Vrms |
SIIS Level 2 (Fault Tolerant CAN Bus) * |
|
No. Channels |
4 (4 on Expansion Card 96-pin DIN) |
Format |
CAN Bus, Fault tolerant according to ISO 11898-3, 11 bit identifier field |
Baud Rate |
50 / 125 kbps (default 50 kbps) |
Protocol | CANopen |
Protection |
Over-voltage up to ±25V; ESD ±15 kV air, ±8 kV contact |
Isolation |
1000 Vrms |
SIIS Level 3 (Ethernet) |
|
No. Ports | Copper : 3 (2 on 96-pin DIN, 1 on Front) |
Format |
SIIS level 3, 10/100 Base-T(X) |
Connectors |
|
Backplane | 1 x 96-pin DIN 416612 |
Front | 1 x 9-pin Micro-D |
Expansion | TBD |
Option | Additional 96-pin DIN with Expansion Card |
Power |
|
Consumption |
SIIS-Medium, 5.5 W typical (6 W max.) |
Voltage |
+20 to +28 VDC, regulated |
Current |
0.2A (0.5 A max.) |
Protection |
ESD, EMI, over-voltage, reverse voltage, overcurrent (no fuses) |
Management |
|
Operating Modes | Serial - Ethernet Gateway, CAN - Ethernet Gateway, IWIS PPP– IP gateway, MODBUS RTU - TCP Gateway |
Ethernet Switch |
Layer 2, Broadcast storm protection, rate limiting, flow control, 802.1q VLAN, DHCP, 802.1p port Priority, port mirroring |
Diagnostics and Configuration |
LED, Webserver, Modbus TCP / RTU, CLI, TELNET |
Firmware Update |
Fail safe remote firmware update |
Mechanical |
|
Dimensions |
3U Eurocard, 160 mm x 100 mm x 4 HP |
Mounting |
Eurocard 3U rack or 4 x M3 hardware |
Options |
Front panel, Expansion Card for CAN Bus and 4-20 mA |
Life Cycle |
|
Design Life |
> 20 years @ +40°C |
MTBF |
> 200,000 hrs @ +40°C |
Testing |
Factory Acceptance Test (FAT) at min. and max. temperature |
Options |
Environmental Stress Screening, thermal or vibration |
Environmental |
|
Temperature |
-20°C to +70°C (operation) -40°C to +85°C (storage) |
Humidity |
5% to 85% RH, non-condensing |
Vibration |
5 g, per ISO13628-6 / API 17F |
Shock |
30 g, per ISO 13628-6 / API 17F |
Qualification |
ISO 13628-6 Q1 / API 17F |
Options |
8000 PSI rated |
*Option with CAN420 expansion card |
Contact Us
Typical Applications
- Subsea communications
- Subsea drilling and production
- Subsea Electronics Modules (SEM) and other subsea distribution nodes
- Upgrades available for legacy communication systems