Meteor Communications Corporation MCC-545C, Эксплуатация и обслуживание, Страница: 33 / 88

DESCRIPTION 2-28
MCC-545C PACKET DATA RADIO
12/2000
3.3 Power-Up Sequence
IMPORTANT
Before applying power to the MCC-545C check all connections between the MCC-545C and the
external equipment (power, antenna, operator terminal, GPS receiver and data logger).. Refer to
Section 3.2.2 for complete cabling instructions.
3.3.1 Power On
CAUTION
Disconnect the antenna cable until the unit ID has been set (see paragraph 3.3.2).
To power up the MCC-545C, apply +12V
DC
to the power connector.
NOTE
When the unit transmits it will draw up to 25 amps, therefore, review section 3.2.2.1 for cabling
to the power source. The voltage drop at the input connector during transmission should be less
than 2 V
DC
for proper operation of the unit.
The following message should appear on the operator terminal when power is applied:
12/23/00 16:54:10 POWER SHUTDOWN/FAIL OCCURRED.
01/02/01 12:54:44 POWER HAS BEEN RESTORED... RESUMING OPERATION.
+
If this message does not appear then the baud rate may not be set correctly in the operator
terminal. The default baud rate setting in the MCC-545C is 9,600 baud, 8 data bits, one stop bit
and no parity. This baud rate setting may be changed in the MCC-545C using the SETBAUD
and SAVE commands, as described in Chapter 4.
The default baud rate settings are stored in flash memory. However, it is possible to lose these
settings if the lithium battery has lost its charge after the MCC-545C has been sitting on the shelf
for an extended time period. In that event, a message similar to that shown below will appear
upon start-up.
METEOR BURST RADIO SUBSYSTEM MBCT
(c) Copyright 2000 Meteor Communications Corp.
All Rights Reserved
RF Modem S/W Part Number P1060-00-00 Version 6.25 12/19/00
The desired baud rate must then be entered using the SETBAUD and SAVE commands.