Andrew Wireless Innovations Group RPT-MOR701 User Manual
User’s manual for Remote Unit MOR701B Power
M0069A0A.doc
Id.-No 151154
Page 18
23-June-99
2.4 Control module SM 2009
The control module SM 2009 is a DOS compatible micro computer. The whole
communication between the operator and the Repeater can be done via the control module. By
using the RS232 interface the Repeater can be controlled locally by using a VT100 terminal,
or a PC emulating the VT100 terminal.
communication between the operator and the Repeater can be done via the control module. By
using the RS232 interface the Repeater can be controlled locally by using a VT100 terminal,
or a PC emulating the VT100 terminal.
Frequency and gain, power down of RF stages and ALC can be controlled and status
messages can be received remotely via the Master Unit.
messages can be received remotely via the Master Unit.
The data transfer between the control module SM 2009 and the mother board is realized by
the I²C-Bus system.
the I²C-Bus system.
The I²C-Bus concept was developed by Philips for the serial connection of integrated circuits
within one device. Two wires, SDA - serial data and SCL - serial clock, carry data between
the devices connected to the bus. Each device is recognized by a unique address and can
operate either as transmitter or receiver.
within one device. Two wires, SDA - serial data and SCL - serial clock, carry data between
the devices connected to the bus. Each device is recognized by a unique address and can
operate either as transmitter or receiver.
All MOR701B Power configuration parameters are stored in an EEPROM on the control
module if a power supply failure occurs.
module if a power supply failure occurs.
figure 2-4 Top view of the control module