58
Figure 5�14 – detail wires and jumpers J21 - terminal/intermediate node DDC
Detail terminal and intermediate node: jumpers position J21: "closed" - "open".
LEGEND
DDC
Direct Digital Control
J21
Jumper CAN-BUS in DDC board
A
detail case "terminal node" (3 wires; J21=jumper "closed")
B
detail case "intermediate node" (6 wires; J21=jumper "open")
H,L,GND data signal wires
Prepare the orange connector (remove from envelope).
1.
Cut a length of cable, long enough to allow it to be installed without kinking.
2.
Having chosen one end of the length of cable, remove the sheath from a length
3.
of approximately 70-80 mm, taking care not to cut the wires contained inside,
the shielding (metallic shield and/or aluminium sheet) and, if present, the bare
connector in contact with the shield and the wires contained within.
Roll the shielding and connect it to a 4-mm eyelet terminal, as illustrated in Figu-
4.
re 5.13 Connection from CAN BUS to connector P8
→
57, details C and D. Now
proceed as follows:
Connect the three coloured wires to the orange connector, as shown in detail "A"
5.
in the figure. Observe the terminal markings L, H, GND (on the DDC at the base
of the socket "P8") which are given both in Table 5.2 CAN BUS cables type
→
55,
and in the figure:
if the DDC is an
•
intermediate node on the network, also complete step "7";
if the DDC is a
•
terminal node, skip directly to step "8".
1. Intermediate nodes only: repeat the operations from step "1" to step "4" for
the other length of CAN bus cable required. Now proceed with step "5" and,
to connect the cable to orange connector, refer to detail "B" in the figure. Then
proceed to point "8".
Fit the orange connector, with the wires attached, first through the slot in the
2.
DDC’s cover and then into the socket on the DDC itself.
Use the rear cover bolts located near the CAN BUS socket to secure the 4-mm
3.
eyelet (or 2 eyelets) (detail D, Figure 5.13 Connection from CAN BUS to connec-
tor P8
→
57). The cable should be secured against pulling out.
