9400001-J1 Rev F
40
7.5.1 Inter-bay CAN Bus Cables - Controller
CAN bus connection provides a communication path between the controller and rectifiers, ADIO Shelf/Bay ID, and
shunt mux(es) if installed. CAN bus cabling is sequentially daisy-chained from the controller to the components.
Initial Installation:
The CAN bus cabling, from the bottom shelf of the power bay to the top shelf, is factory installed and ready for con-
nection to the next bay. These instructions are for systems with shunt mux installed in the distribution bays. If your
system has no shunt mux, start from step 4.
1. Locate the CAN bus cable coming from the controller (neatly coiled inside the primary power bay).
2. Connect the cable from the controller to the shunt mux in the outermost distribution bay.
3. Locate and connect CAN bus cables between the shunt mux distribution bays.
4. Connect the CAN bus cable from the innermost distribution bay to the bottom shelf of the primary power bay.
5. Terminate the top rectifier shelf of the primary power bay.
6. For connection to the extension power bay, remove the CAN terminator from the L-ADIO and connect the CAN
bus from CAN OUT on the L-ADIO to the bottom rectifier shelf of the adjacent power bay.
7. Repeat the preceding step for all power bays, working from the inner most out.
8. Terminate the top shelf of the outer most extension power bay as shown on the Figure 34 or plug the removed
terminator from the L-ADIO at step 6.
CAN OUT
CAN IN
Rectifier shelf
CAN OUT
CAN IN
Rectifier shelf (bottom)
CAN OUT
Terminated
CAN IN
Top rectifier shelf
CAN OUT
CAN IN
CAN OUT
CAN IN
Shunt MUX
Shunt MUX
Primary
Power Bay
Primary
Distribution Bay
Distribution
Extension Bay
Extension
Power Bay(s)
CAN OUT
CAN IN
Rectifier shelf
CAN OUT
CAN IN
Rectifier shelf (bottom)
CAN IN
Top rectifier shelf
CAN OUT
Terminated
CXC HP
CAN 2
CAN 1
L-ADIO
CAN OUT
(Terminated)
CAN IN
Remove the terminator in the
CAN OUT port on the L-ADIO
if connecting to an extension
power bay(s).
Figure 34 — CAN OUT Port Terminator
Figure 35 — Controller, CAN Bus cabling 4.0kW Power Bay
