B-8
© Teledyne Limited
DPN 402197 Issue 7.1
Failure to take this precaution might allow water to penetrate the SEP housings,
following which total circuit failure will occur.
Connect the Teledyne TSS 440 subsea components:
1. Route the coil connection cables to the correct ports on the 440 SEP. Use plastic cable clips to
secure the cables to the fixed framework of the ROV.
2. Install the altimeter near the centre of the 440 search-coil array. Route the cable from the altim-
eter to the 440 SEP. Use plastic cable clips to secure the cable to the ROV frame.
IMPORTANT
The Dualtrack System uses one altimeter only. You
must
connect the altimeter to
the ALTIMETER port on the 440 SEP, or to a topside computer serial port.
If you connect the altimeter to the ALTIMETER port of the 350 SEP the Dualtrack
system will not operate correctly.
3. Connect the 440 SEP to its PSU as described in this manual.
Connect the Teledyne TSS 350 subsea components:
4. Route the coil connection cables to the correct ports on the 350 SEP. Use plastic cable clips to
secure the cables to the ROV framework.
5. Connect the 350 SEP to the ROV electrical supply.
CAUTION
You might cause permanent damage to the sub-sea installations of the 440 or the
350 system if you operate them from an incorrect electrical supply.
The standard subsea components of both systems operate from a nominal 110V
a.c. electrical supply. Optionally, both systems are available for operation from a
nominal 230V a.c. electrical supply.
When you interconnect the 350 and the 440 systems within a Dualtrack
installation,
you must operate both systems from the same electrical supply
.
6. Connect the communications conductors of the 350 Power/Comms cable to the ROV umbili-
cal.
Connect the 440 system to the 350 system
:
7. Use the 440-to-350 Link Cable to connect the 8-way ‘Power/Comms’ connector on the 440
PSU to the AUX OUTPUT port on the 350 SEP. This link uses RS232 communications at 9600
baud.