24
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
4.7.3
Installation Data for DAU 2130
Explosion protection
Class 1, Div I, Groups C and D
(UL1203, UL913 USA) and
EEx d[ia] IIB T4 (EN50014,
EN50018 and EN50020 Europe)
Power Supply
115 or 230 VAC, +10% to -15%,
50-60 Hz, max. 10 W
Field bus
TRL/2 Bus (FSK, half duplex,
two wires, galvanically iso-
lated, 4800 Baud)
Current inputs
4-20 mA. Intrinsically safe.
Number of current inputs
Max. 4, multiplexed, only one is
powered at a time
Number of status and frequency
inputs
Max. 8. Intrinsically safe.
Number of relay outputs
Max. 4
Relay contact rating
250 VAC / 5A (resistive load)
5
Description of the Field Bus Modem, FBM 2170
The Field Bus Modem, FBM, is a converter between RS-232C and
the TRL/2 Bus. It is used for connecting a PC with OPI (or COS) to
the TRL/2 Bus.
Note:
No explosion protection is provided, so the Field Bus Modem must
be installed in a non-hazardous area.
5.1
Installation Data for FBM 2170
Power supply
From AC/DC converter sup-
plied by Saab Tank Control. 6-
15 V, 10 mA).
Cable to PC
Supplied by Saab Tank Control
Explosion protection
None
Saab Marine Electronics
X2
X1
Conn.
to PC
Conn. to
TRL/2
Field Bus
0.065 m
0.115 m
Figure 5.1 shows the Field Bus Modem.
