Saab TankRadar L/2
13
US Version. Seventh edition, June 1995
Installation Manual
Figure 3.2 shows the Transmitter Head
3.1.1
Electronic Unit
The Electronic Unit is placed inside the safety enclosure of the
Transmitter Head. The Electronic Unit includes the microwave
unit, and cards for signal processing, data communication, and
power supply with transient protection.
A number of options require that cards are included in the Elec-
tronic Unit.
3.1.2
Cable Outputs
The Transmitter Head has one or two cable outlets. One is for the
non-intrinsically safe power connection and the connection to the
TRL/2 Bus. The other is for the intrinsically safe connection of the
optional Slave Data Acquisition Unit, and/or the optional analog
inputs and outputs of the Current Loop Card. The wires are
clearly marked with numbers and the designation of the wires is
shown on a printed plate at the cable outputs.
W11
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Intrinsically safe
connection for
Slave DAU
Safety enclosure
Electronic Unit
Mounting
pins for
Weather
Protection
Hood
Non-intrinsically
safe connection
for power and
TRL/2 Bus
Ground connection
Option
W-12 Connection
Barrier Unit
Current Loop Card
Slave DAU
8-wire lead seal
Required
Not required
Current Loop Card
2 2 outputs
12-wire lead seal
Not required
Required
Slave DAU and
Current Loop Card
2 2 outputs
12-wire lead seal
Required
Required
Current Loop Card
3 2 outputs
12-wire lead seal
Not required
Required
Table 3.1. The table describes what is required when the optional Slave
DAU and/or the optional Current Loop Card are included.
