17
Nera F77
Continuing the Saturn tradition
Placing the Main Communication Unit (MCU)
The Main Communication Unit should be placed in a ventilated
area. To ensure adequate cooling of the MCU a 10 cm unob-
structed space must be maintained above and below the unit.
A space of 10 cm above the
MCU is also required to
allow removal of units.
For grounding, see
"
Grounding considera-
tions
" and "
Location and
grounding of units
".
Ambient temperature range
0
O
- 45
O
C.
The MCU is manufactured as
a cabinet for wall or desktop
installation with dimensions
as shown. Six holes through
the MCU mounting plate
allows the unit to be secured
to the wall or desk top.
Placing the Distress Alarm Unit & ISDN Handset
The Distress Alarm Unit is operated in
conjunction with an ISDN Handset.
The ISDN Handset functions as a display
and communication unit for alert trans-
mission. It may also be used for normal
voice communication.
Up to two (2) Distress Alarm Units &
ISDN Handsets may be connected in
series. The units may be installed any-
where onboard the vessel.
Four separate ISDN ports are available
on the MCU as RJ45 jacks or screw
terminal blocks.
Max cable length: 100 m, 4 x 0.22 mm
2
.
See "
ISDN telephones/equipment
"
Placing the ISDN Handset as a standard telephone
The Nera ISDN Handsets may be installed as
standard telephones. The units may be in-
stalled anywhere onboard the vessel.
Four separate ISDN ports are available on the
MCU as RJ45 jacks or screw terminal blocks.
372.5mm
380mm
70mm
10 cm
free
space
10 cm
free
space
DISTRESS
Saturn F
FUNC
ALPHA
ENTER
SHIFT
MORE/
HELP
LES
PTT
ESC
7
STU
DATA
ØÅ.
4
JKL
1
ABC
LIST
LIST
3
GHI
6
PQR
9
LIGHT
YZÆ
SPC
ON/OFF
DEL
2
DEF
PLAY
5
MNO
8
VWX
TAX
0
ÄÖÜ
DIAL 00+INTL
TEL.NO.+
ON
SHIFT BAT
ALPHA
FUNC
ALPHA
ENTER
SHIFT
MORE/
HELP
LES
PTT
ESC
7
STU
DATA
ØÅ.
4
JKL
1
ABC
LIST
LIST
3
GHI
6
PQR
9
LIGHT
YZÆ
SPC
ON/OFF
DEL
2
DEF
PLAY
5
MNO
8
VWX
TAX
0
ÄÖÜ
DIAL 00+INTL
TEL.NO.+
ON
SHIFT BAT
ALPHA
Summary of Contents for F77
Page 53: ......
