ER400TRS EASY RADIO, ER400TRS Datasheet - Page 8

• Manufacturer Part Number: ER400TRS
• Description: MODULE, TX, 433MHZ
• Manufacturer: EASY RADIO

Specifications of ER400TRS

• External Depth: 4mm
• External Length / Height: 14mm
• External Width: 37mm
• Frequency: 433.92MHz
• Operating Temperature Max: 65°C
• Operating Temperature Min: -20°C
• Output Power: 10mW
• Rf Sensitivity: -100dBm
• Range: 250m

Pin Description
Checklist
LPRS Data Sheet
Pin
No
1
2
3
4
5
6
7
8
9
ERx00-02 Series V2.3
1. The module operates internally from an on board 3.3 Volt low drop regulator. The logic levels of the
2. All digital inputs and outputs are intended for connection to low voltage logic devices. Do not connect
3. Outputs will drive logic operating at 5 Volts provided the switching levels are less than 3V.
4. If in handshaking mode, pin (7) of the ERx00RS-02 module should be 0V for data to be delivered.
input/output pins are therefore between 0 Volt and 3.3 Volts. (See RS Performance Data).
any of the inputs or outputs directly to an RS232 port. The receiver module may be permanently
damaged by the voltages (+/- 12V) present on RS232 signal lines. See Application Circuit (Figure
11) for typical connection to an RS232 port via MAX232 interface IC.
Name
Antenna
RF Ground
RSSI
BSY
Data Out
Data In
RDY
Vcc
Ground
Datasheet Revision 2.3 Sept 2005
Description
50Ω RF input/output. Connect to suitable antenna.
RF ground. Connect to antenna ground (coaxial cable screen
braid) and local ground plane. Internally connected to other
Ground pins.
Received Signal Strength Indication - Analogue
Output (Low - Ready for data from Host) (High - Not Ready)
Received Data Output
ER command Input
Input (Low – Host Ready to receive data) (High – Not Ready)
Positive supply pin. +2.5 to +5.5 Volts. This should be a
‘clean’ noise free supply with less than 25mV of ripple.
Connect to supply 0 Volt and ground plane
ER400TS Transmitter, ER400RS Receiver & ER400TRS Transceiver
ER900TS Transmitter, ER900RS Receiver & ER900TRS Transceiver
Easy-Radio ‘02’ (2
Copyright LPRS 2005.
nd
Generation Modules)
Notes
CTS function
SDO
SDI
RTS function
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