User's Manual Part 1

iDEN Add-On Filter Box
User’s Manual -14-
2.2.4. MCU (Main Control Unit)
MCU is the control unit of iDEN Add-On Filter Box. It controls and monitors
operational parameters. It also generates alarms, an event log and many
other functions of the iDEN Add-On Filter Box.
Figure 8. Main Control Unit
Pin Map
Port Connected to
USB1A_J1 Local OMT
MOL1 MCU Vcc(+6V)
MOL2 iDEN 800 PLL,B/S,OUT DET
MOL3 iDEN 900 PLL,B/S,OUT DET
MOL4 Dip Switch Control
LED
LED
LED1 Red light indicates MCU power “on”
LED2 Green light indicates 800 PLL Lock
LED3 Green light indicates 900 PLL Lock
USB1A_J1
MOL1
MOL4
MOL3
MOL2
LED1
LED2
LED3