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ADCP-75-150 • Preliminary Issue A • March 2003 • Section 3: Host Unit Installation
Page 3-14
©
2003,
ADC
Telecommunications,
Inc.
Figure 3-12. Configuring CAN Connections with Multiple Host Units
9 SERVICE INTERFACE CONNECTION
The
service
interface
connection
between
the
HU
and
the
DEMS
computer
is
supported
by
a
single
DB-9
female
connector.
The
service
connector
provides
an
RS-232
DTE
interface.
A
three
meter
long
straight-through
RS-232
interface
cable
is
provided
with
the
HU
for
connecting
the
DEMS
computer
to
the
HU.
Use
the
following
procedure
to
install
the
service
interface
cable:
1. Connect
one
end
of
the
service
interface
cable
(provided
with
HU)
to
the
SERVICE
port
as
shown
in
Figure 3-13.
2. Route
the
service
interface
cable
to
the
DEMS
computer
and
connect
the
free
end
of
the
cable
to
the
computer’s
RS-232
DCE
port.
Refer
to
the
user
manual
provided
with
the
computer
to
locate
the
required
port.
Figure 3-13. Service Interface Connection
HOST UNIT 1 HOST UNIT 2 HOST UNIT 3
NET IN NET OUT NET IN NET OUT NET IN NET OUT
16900-B
CONTROLLER AREA NETWORK
INTERFACE CABLES
TO NEXT HOST UNIT
(NOTE: LAST HOST HAS NO
CONNECTION AT NET OUT)
18659-A
FCC ID: F8I-DLC0802A User Manual - Part 4

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