Meteor Communications Corporation MCC-545C, Эксплуатация и обслуживание, Страница: 34 / 88

DESCRIPTION 2-29
MCC-545C PACKET DATA RADIO
12/2000
3.3.2 Entering the Unit ID
It is very important that the unit ID is entered correctly before transmitting. If the unit transmits
with the wrong ID it may conflict with another unit in the system and will result in data or
messages being misrouted or lost. In addition, the network topography and statistics will receive
incorrect data that will impair network performance. Use the ID Command to set the unit ID:
ID,nnnnn,mmmm{,aaaaa},INIT
where nnnnn is the unit ID, mmmm is the Master Station assignment and aaaaa is the initial
Master Station connectivity setting. Obtain these numbers from your network manager. The
MCC-545C will save the ID and reboot whenever the unit is powered up or reset.
3.3.3 Set and Verify the Tx/Rx Frequencies
The MCC-545A is programmed by a factory-trained technician to operate on a number of
authorized frequency channels. Once programmed, these frequencies can be selected by the
operator from a keyboard.
You can set or display the TX and RX frequencies using the following command:
FREQUENCIES, XXXX,YYYY
Where XXXX is the desired transmit frequency and YYYY is the desired receive frequency
Example: FREQUENCIES,4550,4550
This will select 45.50 MHz for both the transmit and receive frequency. Only those frequencies
that have been previously programmed into the unit at the factory can be selected.
Once the frequencies are selected, confirm that the synthesizer is “ON” and locked by entering
the following command:
SYNTHESIZER, ON
The unit will respond with
SYNTHESIZER, ON Locked or Unlocked
If the synthesizer returns an unlocked response, check the frequency command to ensure that the
proper frequencies have been entered.
NOTE
The MCC-545C will not transmit if the synthesizer is not locked.