User's Manual

PRELIMINARY FCC ID: BIB61201001 DESCRIPTION 2-5
PRELIMINARY MCC-6120 SDR Packet Data Radio Network
2.2 Functionality Overview
Introduction
The MCC-6120 SDR is the next step in the evolution of the MCC family of Packet Data Radios.
The necessity for providing customers with simple, yet powerful, fixed and mobile
communications capabilities has led to the development of a Software Defined Radio (SDR)
coupled to a Communications Management Unit (CMU). The previous design, known as the
MCC-545C, used a 20 MHz Motorola 68332 processor, 40 MHz Low-Band VHF GMSK analog
receiver/DSP transmitter, and had three RS-232 serial ports for interfacing to external equipment.
The MCC-6120 SDR has added additional capabilities including a 50 MHz Motorola ColdFire
5485 processor, TI Digital Signal Processor, TCP/IP stack, two Ethernet ports, an 802.11b port,
two USB ports, and a second RF transceiver in the 160 MHz band.
This section will describe the type of message transport services that are provided, then describe
the commands required to configure the various services.
Message Transport Services
Figure 2.2-1 shows the CMU in relation to its ports and Low-Band Radio Link. This paragraph
will discuss the ways the CMU can provide message transport services between the external
applications that may be attached to the various ports.
TCP/IP
Ethernet-1
TELNET
TELNET
TCP/IP
TCP/IP
802.3
TCP/IP
TCP/IP
802.3
Ethernet-2
TELNET
CMU
RS-232TCP/IP
USB
USB
TELNET
RS-232
MBNET 802.3
SDR
3
Base
D
TCP/IP
Low Band
SMX FILE
High Band
ATCS
SDRNET.DWG
MeteorComm
SDR Radio
802.11b
WiFi 802-11b
MSC
MSC
MSC
MSC
MSC
MSC
FIGURE 2.2-1
The MCC software architecture allows any of its ports to be assigned to a wide variety of device
drivers. This provides a very flexible means of configuring any radio to meet particular