Service Manual

GSM-205-323
CTU
31st Oct 01
Technical Description: Horizon macro indoor
68P02902W07-B
CONTROLLED INTRODUCTION
Tech. 5–9
Alarm reporting
The CTU status is displayed by LED indicators on the front panel, as shown in
Figure 5-2, and detailed in Table 5-1. Major sub-systems, such as synthesizers
and RF amplifiers, are monitored, with alarm signals as necessary.
Table 5-1 CTU front panel status indicators
Indicator LED When the LED is Then CTU
RADIO
STATUS
OFF Module off
STATUS
Flashing green Code required or being loaded
Green Normal operational mode
Flashing yellow Test mode
Yellow Radio inhibited
Red Alarm condition
Transmit (Tx)
STATUS
OFF Transmitter is off
STATUS
Yellow Transmitter is keyed on
RADIO
STATUS AND
TRANSMIT
(Tx) STATUS
Both LEDs flashing
rapidly
Non-volatile memory boot code
upgrade
(Do not remove power or reset –
see CAUTION)
CAUTION When both LEDs are flashing, the boot code is
downloading into non-volatile memory for software
upgrade. Power should not be removed, nor the cabinet
reset, until downloading has been completed, as this will
corrupt the non-volatile memory. If the boot code is
corrupted, contact Motorola Customer Network Resolution
Centre requesting the boot code restoration procedure
and the appropriate boot code file.