Raymarine L1250D, Owner'S Handbook Manual

Page: 50 / 246

2-18 HD Series Fishfinders
HS
B
(hs
b2
)
Co
nne
ction
HSB ( hsb
2
) Connection
An HSB cable is required to connect the sounder module to the display unit for
showing echo sounder data. A 3m (10 ft) HSB cable is supplied with the
DSM250. These cables are also available in lengths of 1, 6, 10, and 20 m. See
Table 2-1 Parts and Accessories on page 2-4 for the complete list and
associated part numbers.
The HSB cable is attached to the three-pin male connector marked
HSB
on the
connector panel of the sounder module and display unit. The connector pins
are shown in the following diagram. This information is provided as an aid to
fault diagnosis.
For details on using hsb
2
, see High Speed Bus (hsb2) on page 2-25.
Figure 2-10: HSB Connector
Pin 1
Pin 3
Pin 2
HSB connector
HSB connector
Pin Pin name Function
1 CGND Screen
2 HSB_POS HSB
3 HSB_NEG HSB
2 3
1
HSB
D4253-4
Rear of Display Unit
81213_1.book Page 18 Monday, March 17, 2003 1:14 PM