DS620-3 Jan ‘07

©2007 Reg. No. 227 4001, ENGLAND

Page 2

RF620T

RF620R

SmartRadio Transmitter / Receiver

RF620T - Pin Description

Pin No

Name

Description

1

Input 1 OR

\Serial Data

Telemetry Mode:

Data input 1. CMOS/TTL level

Serial Mode:

Serial data Input, active low. CMOS/TTL level

2

Input 2 OR

\CTS

Telemetry Mode:

Data input 2. CMOS/TTL level

Serial Mode:

\CTS data output, active low. CMOS/TTL level

3

\Learn

&

\LED

Dual function:

Programming Switch input, When grounded places the module into ‘learn’ mode.

External LED output, Indicates data reception, and programming status.

4

Mode

GND via 10K resistor:

Telemetry Mode

Vcc via 10K resistor:

Serial Mode

5

ANT

Connect Antenna to this input

9

GND

Ground

10

Vcc

+5V Supply Voltage

RF620T – Serial Application circuit

RF620T – Telemetry Application circuit