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