NORBIT iWBMS - Dry-End Overview

10.4.3 User Manual Contents April 17, 2020
Firmware: 5.2.1 Page 19 of 142
2.3 Dry-End Overview
All WBMS systems include a compact topside Sonar Interface Unit (SIU) which distributes power,
time information and data between the sonar wet-end and the survey acquisition system. This
environmentally sealed fan-less topside is dust-proof and splash resistant, facilitating worry-free use
on vessels with little to no protection from the elements.
⚠
CAUTION: Cover Connection Ports
When operating in open environments, all connection ports on the SIU
should be tightly sealed either with the NORBIT supplied cables or, if the
port is unused, with the port covers provided with the system.
WBMS Sonar Interface Unit (SIU)
PN: 29024
*Please note that SIU-I model 29024-5 and newer will not have the 6A fuse in the rear. Instead there will
be an internal 20A fuse
This SIU works with all WBMS Bathy, STX and FLS systems. The iWBMSe and iWBMSc require an
18-pin to 10-pin adaptor.
The SIU will shut down automatically at 70° C to prevent damage to electronics due to overheating.
Connector
Description
Sonar LEMO
Interface cable to the sonar
GPS RS-232
ZDA Timing input
PPS BNC
1 PPS input for external sensor
Ethernet RJ45
For communication between topside PC and sonar
SAMTEC Part# RCE-01-G-05.00-D
AUX LEMO
For communication with auxiliary devices
Power LEMO
FUSE SOCKET*
Input DC voltage
Rear; 6A slow-blow