Operations Manual

OPERATIONS 4-25
O&M of the MCC-545B PACKET DATA RADIO
12/2000
Set up the synthesizer mode: SYNTH,ON or SYNTH,OFF
4.8.1.1.1 Full Duplex Network
The Master Station(s) can be set up to communicate between themselves in a full duplex, two
frequency mode. This provides a high efficiency data transfer between Masters that is about four
times faster than the data rate between Remotes and Masters. Remote Stations always
communicate to their Master Station in a half duplex mode.
IDLE ACQ SOM TEXT TEXT TEXT SOM TEXT
BURST
ERROR
CFG
IDLE
TX-2 TEXT
TEXT TEXT TEXT TEXT EOT
IDLE ACQ ACQ TTD TTD TTD EOTTTD
TX-1
NAK NAK NAK NAK NAK NAKNAK
IDLE
METEOR
Full Duplex Masters
Operating with two frequencies requires the transmit and receive frequencies of the units to be
matched to achieve the desired network topology. This situation means that the Tx frequency of
one Master must match the Rx frequency of the other Master. Remotes set up to match the
frequencies of one Master can not communicate with a Master using the opposite Tx/Rx
frequency pair. All Master Stations in this type of network can be set to ROLE,PROBE which
means they can continually transmit idle probes and there will be no contention because of the
matched frequency pairs. This setup is the best choice for networks having only one or two
Master Stations. To select this mode, enter the command: FULL DUPLEX
TX-1 IDLE
IDLE
TTD
TX-2
Full Duplex Master
Half Duplex Remote
IDLE
ACQ
SOM
TEXT TEXT
ACQ
TEXT TEXT
METEOR