
2 – System Overview
DPN 402197 © TSS (International) Ltd Page 3 of 14
Table 2–1: Components of the 350 Cable Survey System
CAUTION
Earlier versions of the 350 System and sub-sea altimeter were depth rated to 1000
metres only. DO NOT use these earlier versions of hardware for surveying targets at
depths greater than 1000 metres.
You may recognise the two types of SEP easily:
- Type 1 SEPs that have a 1000 metres depth rating show a
visible end-cap thickness of 6mm. They also have serial
numbers with three digits.
- Type 2 SEPs that have a 3000 metres depth rating show a
visible end-cap thickness of 11mm. They also have serial
numbers with four digits.
- The 3000 metre depth-rated altimeter is stainless steel with
a bright finish. The earlier 1000 metre depth-rated version
had a black finish.
- You may use a Datasonics altimeter with the 350 System.
The Datasonics PSA 900 has a depth rating to 2000 metres,
and the PSA 9000 has a depth rating to 6000 metres.
Item Description
G
Surface display computer (SDC) with:
❐ DeepView for Windows display and logging software pre-installed on the internal hard disk.
❐ Auto-range power supply that accepts AC supply voltages in the range 85 to 265V (47 to 63Hz) at
250VA maximum.
❐ Modular 19” rack-mountable Industrial PC, VDU and keyboard/trackpad combination.
❐ 40GB of storage disk space.
❐ CD-ROM drive.
❐ 2 x USB ports on front panel of Industrial PC.
❐ Current-loop interface card (externally configurable).
❐ Video overlay card and dual-head graphics card.
H
Data cable for connection between the SDC and the ROV umbilical
I
Power and data cable (or ‘ROV Tail’) that connects the SEP to the ROV umbilical and power distribution
system
J
Depth rated Sub-sea Electronics Pod (SEP)
K
Port and starboard coil connection cables
L
Port and starboard coil triads. These each include three identical coils arranged so that the starboard triad
is a mirror image of the port triad.
M
Altimeter connection cable for the altimeter type in use
N
Sub-sea altimeter
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