L3 Comminications SERIES 5000 Operation And Maintenance Manual - page 151
6-2
CHAPTER 6 Splashproof TPU
Series 5000 Sonar System Operations and Maintenance Manual
P/N 11210060, Rev. 13.0
6.1.1 Venting the
Splashproof
TPU
The Splashproof TPU includes
a vent which can be easily
opened or closed. The TPU is
shipped with the vent closed as
shown in Figure 6-2.
To open the vent, loosen each
of the screws by hand or by
using a flat bladed screw
driver, keeping them captive to
the TPU, until the vent pops
open approximately one-half
inch as shown in Figure 6-3.
To close the vent, tighten each
of the screws until the vent is
completely closed. Hand
tightening is sufficient.
6.1.2 External Connections
The external connections to the Splashproof TPU are made on the connector panel
which is shown in Figure 6-4. Most of the connectors on this panel are wired to
internal connectors which connect to the Demultiplexer, CPU and Transition
boards as shown in Figure 6-5 on page 6-5.
CAUTION
The vent
on the TPU must be
opened when the
outside air temperature exceeds
30
°
C. Failure to do so may
damage the TPU.
Figure 6-2:
Splashproof TPU Vent Closed
Figure 6-3:
Splashproof TPU Vent Open