User's Manual

05-3946A01, Rev. C TransNET OEM Integration Guide 11

• Remote radio(s) transmitting data (TXD) and receiving data (RXD) with

another station.

4.0 TRANSCEIVER MOUNTING

This section provides information for mounting the OEM transceiver in a host

device. The module need only be protected from direct exposure to the

weather. No additional RF shielding is required.

Figure 7 shows the dimensions of the transceiver board and its mounting

holes. If possible, choose a mounting location that provides an unobstructed

view of the radio’s LED status indicators when viewing the board from

outside the host device.

Mount the transceiver module to a stable surface using the four mounting

holes at the corners of the PC board. Standoff spacers should be used to main-

tain adequate clearance between the bottom of the circuit board and the

mounting surface. (Fasteners/anchors are not normally supplied.)

Table 4. LED Indicator Descriptions

LED Name Description

RXD (CR3)

Receive Data

Serial receive data activity. Payload data from

connected device.

TXD (CR4)

Transmit Data

Serial transmit data activity. Payload data to

connected device.

DCD (CR5)

Data Carrier Detect

Continuous—Radio is receiving/sending syn-

chronization frames

On within 10 seconds of power-up under nor-

mal conditions

GP (CR6)

General Purpose

• Continuous—

Power is applied to the radio; no problems de-

tected

• Flashing (5 times-per-second)—

Fault indication. 

See “TROUBLESHOOTING” on Page 57

•Off—

Radio is unpowered or in Sleep mode

RXD

TXD

DCD