Vaisala FS11P - Communication Cable

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 55
The following numbers refer to Figure 28 on page 54:
1
=
T5A DC line fuse
2
=
T5A AC Heater line fuse for PWD32
3
=
T5A AC Heater line fuse for LM21
4
=
M10A AC Heater line fuse for FSM102
5
=
FSC202 Interface CPU
6
=
Line voltage selector
7
=
FSP103 Power board
8
=
QBR101 battery charger
9
=
Power switch and circuit breaker
10
=
Protective Earth PE
11
=
AC (mains) power cable
12
=
Line L
13
=
Neutral N
14
=
AC (mains) surge supressor
15
=
Backup battery switch
16
=
DXL421 modem
NOTE
If the line voltage used differs from 230
V (the initial factory setting),
check the voltage setting of the FSP103
AC (mains) power supply
(alternatives 115
VAC and 230 VAC). See Figure 28 on page 54.
Communication Cable
The enclosure of the interface unit FSI102 has a data cable outlet for
cable diameters of 8 to 11 mm. This is reserved for signal or modem
cables. The optional AC (mains)/data cable outlet can also be used for
data cables. The cable should be led out from the unit inside the lower
mast section. Grounding must be done within the cable gland in order to
keep the EMI levels within specifications.
NOTE
If there is a juncti
on box installed, the cable shield should be grounded
at both the input and output cable glands.
Detailed instructions for a proper RF grounding of any jacketed cables
are given in the following:
1. Lead the signal cable through the cable inlet. See Figure 29 on page
56.
2. Strip 50 cm of the cable sheath leaving approximately 2 cm of
shield.