SBX-4 Integrator Guide
Chapter 2-Integrating the SBX-4
Page 14 of 22
Factory Default Settings
Table 1-3 presents the factory default SBX-4 operating mode, while Table 1-4 lists the default
SBX-4 communication settings. These operation and port settings are valid upon initial power-up.
The SBX-4 maintains any changes made to its operating or port settings in non-volatile memory
for subsequent power cycles.
Table 1-3: Default SBX-4 operating mode
Tune mode
Automatic
Table 1-4: Default SBX-4 port settings
Baud Rate
Data Bits
Parity
Stop bit
Interface level
4800
8
None
1
3.3 V CMOS
SBX-4 Integration Summary
The following steps summarize the general requirements for integrating the SBX-4 and identifies
the command and control features provided:
1.
SBX-4 Power Input - Apply a 3.3 VDC power input to Pin 3 of J300 with the power-
return connection at Pin 21 of J300.
2.
Antenna Power Input - Apply +5 VDC to either
•
Pin 4 of J200 with an antenna power ground connection on Pin 1 of J200
-or-
•
Pin 1 of J300 with an antenna power ground connection to Pin 1 of J200
3.
Antenna Signal Input to SBX-4 - Connect the coaxial cable center conductor to Pin 2
of J200 and the shield to Pin 3 of J200.
4.
SBX-4 Serial Ports - The SBX-4 serial ports communicate at a 5 V CMOS interface
level. You must provide level translation circuitry to connect to a standard RS232/422
type device. Pin assignments for the communication ports of the SBX-4 are as
follows:
•
Pin 14 of J300 - TXD0, this is the Port 0 transmit data output from the SBX-4
•
Pin 15 of J300 - TXD1, this is the Port 1 transmit data output from the SBX-4
•
Pin 17 of J300 - RXD0, this is the Port 0 receive data input to the SBX-4
•
Pin 18 of J300 - RXD1, this is the Port 1 receive data input to the SBX-4
•
Pin 23 of J300 - Signal return, Port 0
•
Pin 24 of J300 - Signal return, Port 1