Service Manual

GSM-204-323
MCUF
31st Oct 01
Technical Description: Horizon macro outdoor
68P02902W02-A
CONTROLLED INTRODUCTION
Tech. 6–9
PCMCIA interface
The PCMCIA card is located on the front panel of the MCUF, and is used for:
 Code Storage Facility Processor (CSFP) memory.
 Rapid site initialization.
The PCMCIA socket is an industrial standard 68 pin single socket, fitted with an
ejector. The PCMCIA interface supports rev 2.1 type I and II cards.
The 20 Mbyte card can be write enabled, for upgrade of site information, or
disabled to protect card use for other sites or secure the site code.
Front panel
switches and
indicators
The front panel of the MCUF module has two reset switches as shown in
Figure 6-3:
 FULL is a hard reset (power up - removes software from the memory).
 CPU is a soft reset (this resets the MCUF main processors, but the
software remains in RAM).
A hard reset results in the software being reloaded to the DRAM, in the same
way as normal power up.
NOTE
During the CPU (soft) reset, pressing CPU reset again will
perform a hard reset. Double pressing of the CPU reset
thus has the same effect as a hard reset.
The MCUF has two front panel LEDs (one green and one red) as shown in
Figure 6-3, with indications as shown in Table 6-2.
CAUTION
When red and green 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.
Table 6-2 MCUF front panel LED indications
Red Green Status
Off Off Board not powered up or in rest cycle
Off On Normal operation
On Off Fault condition
Flashing Flashing Non-volatile memory boot code upgrade
(Do not remove power or reset – see above
CAUTION)