Hardware manual

Issue 8 Electra Elite
5 - 16 Installing Electronic Telephone Units
3.6.3 Switch Settings
Refer to Table 5-3 MIFA-U( ) Default Switch Settings.
3.6.4 LED Indications
Table 5-3 MIFA-U( ) Default Switch Settings
SW2-1 SW2-2 Description
Off Off Normal Operation
On Off Factory Test
Off On Not Used
On On Flash ROM load from
EPROM
SW1 Description
On System boot by Flash ROM
Off System boot by EPROM
Table 5-4 MIFA-U( ) LED Indications
LED Description On Flashing Off
LIVE ETU status Operation stopped (Power
On)
Normal Operation No Power
LED1 Programming status Problem when loading
Flash ROM
or
PC or LCR Programming
connected
Loading Flash ROM
from EPROM
Not Used