User's Manual

12 TRM SB Integration Guide MDS 05-4121A01, Rev. 02
2.0 INSTALLATION DESIGN
The TRM SB transceiver is designed to be part of a larger electronic
device or system. It must be provided with adequate and stable primary
power, a complementary data interface and RF antenna system
connections. An appropriate antenna is the only external device that is
needed.
Connections to the TRM SB are through two connections: data and
power through an AVX Series 5046 fine-pitch (
DATA INTERFACE)
connector and RF signalling through PCB pads to a SMT PCB-to-PCB
pressure-contact coaxial connector. These connections require a stable
support for the TRM SB module with positive pressure by the RF
connector on the RF I/O pads (J300/301). Figure 4 shows the external
connections for the transceiver.
Invisible place holder
Figure 4. Top and Bottom Views Showing External Connections
The transceiver has all of its electronic circuitry enclosed in RF shields
to minimize interaction with nearby electronic products. The transceiver
module is compliant with FCC Part 90 and Part 15 in the 410–470 MHz
band. The transmitter can be set to produce 2 Watts of RF output.
Careful selection and/or design of the radio transmission line is
important to minimizing RFI to nearby electronic devices.
This unit must be provided with a good antenna system optimal
communication range and reliability. A secondary benefit is an
opportunity to run the system at the lowest possible power level, a lower
primary power consumption, and reduced chances of interference.
The data interface will support a variety of system designs. Use only the
required pins for the application.
Refer to the complete list of pin
functions in Table 4 on Page 17.