ADC DVLRCSSMR User Manual
FCC ID: F8I-DVLRCSSMR Class II Permissive Change
Manual - Part 4
8 CONTROLLER AREA NETWORK CONNECTIONS
Controller area Network (CAN) interface connections between multiple HU’s are supported by
a pair of RJ-45 jacks. One of the jacks is designated as the NET IN port and the other jack is
designated as the NET OUT port. The CAN interface allows up to 15 HU’s to be connected
together (in daisy-chain fashion) and controlled through a single Digivance EMS computer. A
one meter long cable is provided with each HU for CAN connections. Use the following
procedure to connect CAN interface cables between multiple HU’s:
1. Connect one end of the CAN interface cable (provided with the HU) to either the NET IN
or NET OUT port on HU #1 as shown in Figure 3-11.
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit Installation
16901-A
RJ-45 CONNECTOR
DETAIL
Figure 3-11. Controller Area Network Connections
2. Route the CAN interface cable to HU #2 and connect the cable’s free end to the port that is
the logical opposite of the network port the cable was connected to at HU #1.
Note: If connected to a NET OUT port at HU #1, connect to the NET IN port at HU #2. If
connected to a NET IN port at HU #1, connect to a Net OUT port at HU #2.
3. If a third HU will be connected to the network, connect a second CAN interface cable to
the remaining network port on HU #2.
4. Route the second CAN interface cable to HU #3 and connect the cable’s free end to the
port that is the logical opposite of the port that the cable is connected to at HU #2.
5. Repeat steps 3 and 4 for each additional HU that is added to the network up to a total of 15
HU’s. A diagram of typical CAN interface connections is shown in Figure 3-12.
© 2002, ADC Telecommunications, Inc.
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ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit Installation
HOST UNIT 1 HOST UNIT 2 HOST UNIT 3
NET IN NET OUT NET IN NET OUT NET IN NET OUT
Figure 3-12. Configuring CAN Connections with Multiple Host Units
9 SERVICE INTERFACE CONNECTION
The service interface connection between the HU and the Digivance EMS 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 EMS computer to the HU. Use the following procedure to install the service
interface cable:
CONTROLLER AREA NETWORK
INTERFACE CABLES
TO NEXT HOST UNIT
16900-A
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 EMS 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.
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© 2002, ADC Telecommunications, Inc.
Figure 3-13. Service Interface Connection
10 EXTERNAL ALARM SYSTEM CONNECTIONS
The alarm interface between the HU and an external alarm system is supported by a six-terminal
plug (with screw-type terminals) that connects to a receptacle mounted on the HU front panel.
The terminal plug provides connections to normally open (NO) and normally closed (NC) dry
type alarm contacts for both major and minor alarms. A category 3 or 5 cable is typically used to
connect the HU to the external alarm system. Use the following procedure to install the alarm
wiring and connect it to the HU:
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit Installation
1. Obtain the required length of category 3 or 5 cable.
2. Route the cable between the HU and the external alarm system (if not already routed) and
then cut to the required length. Allow sufficient slack for dressing and organizing the cable
at the HU.
3. Strip back the outer cable sheath and insulation to expose the wires at both ends of the
cable and strip back 0.2 inches (5 mm) of insulation from each wire.
4. Connect the Major alarm wire pair to the MAJOR COM/NC or MAJOR COM/NO
terminals (whichever is required by the external alarm system) on the HU alarm terminal
connector (supplied with HU) as shown in Figure 3-14.
ALARM
CONNECTOR
MINOR
ALARM
WIRES
MAJOR
ALARM
WIRES
ALARM CONNECTOR
DETAIL
16884-A
Figure 3-14. External Alarm System Connections
5. Connect the Minor alarm wire pair to the MINOR COM/NC or MINOR COM/NO
terminals (whichever is required by the external alarm system) on the HU alarm terminal
connector (see Figure 3-14).
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© 2002, ADC Telecommunications, Inc.
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit Installation
6. Connect the Major and Minor alarm wire pairs to the appropriate terminals on the external
alarm system.
7. Dress and secure cable per standard industry practice.
11 DC POWER CONNECTIONS
The HU is powered by ± 24 or ± 48 Vdc power. The power is fed to the HU through a screwdown type terminal strip located on the rear side of the unit. Power to the HU must be supplied
through a fuse panel such as the 20 position PowerWorx fuse panel (available separately) and
the power must be protected with a 3 Amp GMT fuse. Use the following procedure to install the
power wiring:
1. Obtain one pair of #18 AWG (1.00 mm) red and black insulated copper wire for use as the
power wiring.
2. Terminate one end of each wire with a fork terminal as shown in Figure 3-15.
3. Connect the power wires to the power terminal strip at the rear of the HU.
+ (RED)
#18 AWG
(1.0mm)
COPPER
WIRE
– (BLACK)
FORK
TERMINALS
4. Route the free ends of the wires to the fuse panel and locate the terminals that will be used
for the power feed. Refer to the user manual provided with the fuse panel for specific
information.
5. Remove the fuse from the circuit that will power the HU.
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© 2002, ADC Telecommunications, Inc.
16891-A
Figure 3-15. DC Power Connections
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit Installation
6. Connect the power wires to the appropriate terminals as specified in the fuse panel user
manual.
7. Dress and secure the power wiring at the fuse panel and the HU. The procedure for
checking the voltage level and verifying that the HU is ready to power up is provided in
SECTION 4: OPERATION.
© 2002, ADC Telecommunications, Inc.
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