Installation manual

Connecting peripheral equipment
89
851-164510 / Rev.E
8.2 Speed log connection
Overview
The sonar can read the speed information from one of the
following three sources (tick off for the type which will be
connected):
• Pulse log (200 pulses/nautical mile)
• Speed log with RS-232 serial line output
• (D)GPS serial line (RS-232)
The connection of these different sources are described in the
following chapters.
Pulse log (200 pulses/nautical mile)
For any type of pulse log output (relay, open collector, or
opto-coupler), the output must be free from other connections.
The figure to the left shows the connection of a pulse log with
relay output to terminal TB8 in the Sonar Interface Unit.
For connection of a pulse log with open collector or
opto-coupler output, the connection must be made between
SP.LOG+ (on TB8-2) and SP.LOG- (on TB8-5). If this is the
case, be aware of the polarization.
GROUND
12
2
5
BAV99
D11
(CD7016)
100k
100k
10k
100k
10k
+12V
R31
R32
10
11
IN-
IN+
12
13
3
R33
1k
TP33
+12V
+5V
LM339
R66
R65
R64
SP.LOG+
SP.LOG-
TB8
IC30
TP34
Figure 26 Pulse log interface
Figure 25
Connections for
pulse log with
relay output
6
2
1
8
11
4
7
10
3
9
12
5
Sonar Interface
Unit TB8
Speed log +
Speed log -
Ground
(CD7015)