Users Manual Part 1

2 Connect an RS232 cable from the serial port on the service terminal to the RJ45 Site Controller
service port on the front of the Site Controller.
6.3
CAN Bus Configuration
CAN Bus interconnects units in the BTS. It is used for signaling, configuration and troubleshooting.
CAN Bus configuration and diagnosis in done through use of MMI Commands from the Site
Controller. To use the commands connect the Service Terminal (Setting Up Service Terminal
on
page 246) to the Site Controller using the Service Cable (Service Cable and Connector Box
Description on page 244).
NOTICE: All the CAN Bus related Commands are covered in detail in the MMI Commands
manual.
Using CAN Bus MMI Commands it is possible to diagnose the state of all the devices connected to the
CAN Bus:
• PSU CAN Bus Commands on page 247
• Fans CAN Bus Commands on page
248
• DPM CAN Bus Commands on page 248
• ATCC CAN Bus Commands on page 248
• Other CAN Bus Commands on page 249
6.3.1
PSU CAN Bus Commands
Use the PSU CAN Bus Commands to verify the state of the Power Supply Unit.
psu <PSU number> get alarm
Indicates a problem if any of the fail fields displays YES.
Example:
DC in fail: YES – indicates battery failure. For an MTS not equipped with backup battery it is
normal behavior and does not indicate any malfunction.
AC in fail: YES – indicates no or too low AC input voltage.
psu <PSU number> get status
Shows the status of all power sources (AC/DC, in/out).
psu <PSU number> get battery_voltage
Shows the battery voltage.
For an MTS not equipped with backup battery it shows the DC source input voltage.
psu <PSU number> get battery_current
Shows the battery current.
For an MTS not equipped with backup battery it shows the DC source input voltage.
psu <PSU number> get battery_temperature
Shows the battery temperature.
For an MTS not equipped with backup battery it shows the DC source input voltage.
6802800U74-AP
Chapter
6: Configuration and Testing
247