tr2m-458-5 Radiometrix Ltd, tr2m-458-5 Datasheet - Page 3

• Manufacturer Part Number: tr2m-458-5
• Description: Multinarrow Band Fm Multi-channel Uhf Transceiver
• Manufacturer: Radiometrix Ltd

P
Pins
A1
A2
B1
B2
B3
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
Notes:
Radiometrix Ltd
C: 1
C: 2 TXD (MOD NC)
C: 3 AF in (MOD NC)
C: 4 RSSI
C: 5 SQF (MOD NC)
C: 6 AF out
C: 7 RXD (MOD NC)
C: 8 +4.4V out
C: 9 0V
C: 10 PGM
C: 11 P1 (MOD TXD)
C: 12 P2 (MOD RXD)
C: 13 P3 (MOD NC)
A: 1 Vcc
A: 2 Gnd
B: 1 RF Gnd
B: 2 RF in
B: 3 RF Gnd
in Description - TR2M
1. Carrier detect on TR2M mutes the AF Out and RXD outputs. It can be factory disabled.
2. All the open collector outputs must be connected to Vcc/+4.4V out via a pull-up resistor.
3. The software incorporates a 1200baud dumb modem, compatible with that implemented in
4. With 1200baud modem mode enabled, parallel selection of channel is unavailable as the P1-P3
5. PGM and MOD TXD (pin 10 and 11) tolerate true ±RS232 levels. No buffering is required.
TXE (MOD TX_ON)
Name
Vcc
GND
RF GND
RF
RF GND
TXE (MOD TX_ON)
TXD (MOD NC)
AF in (MOD NC)
RSSI
SQF (MOD NC)
AF out
RXD (MOD NC)
+4.4V out
0V
PGM
P1 (MOD TXD)
P2 (MOD RXD)
P3 (MOD NC)
TX2M, RX2M radios (I1200 tones and format)
lines are used for modem input/output operations.
Figure 3: TR2M Footprint (Top)
B
3.1mm
A
Function
4.5V-16V
Ground
RF ground
To the antenna
RF ground
Transmitter Enable. Low = ON, Open = RX mode. Internal 10kΩ pull-up to 4V
AC coupled Analogue Input Limit to 1V
peak deviation >2.5kHz
DC level between 0.5V and 2.5V. 60dB dynamic range
Noise operated carrier detect. Open collector. ON/low = no signal
200mV
Open collector output of data slicer suitable for Biphase codes
Regulated DC supply. 75mA max. drain. Present if unit is powered
Ground
Serial programming/configuration input at RS232 level
Parallel frequency select inputs. Inverted logic, internal 10kΩ pullups to 4V
DC coupled digital data input for 3-12V CMOS logic. Leave open if unused
1
8.9 mm
pk-pk
audio. DC coupled, approx 1V bias. Muted by squelch
59mm
53.3mm
TR2M Data Sheet
Squelch adj
Input gain
.
.
C
1
pk-pk
Unit height
±10% to keep distortion <1.5% and
10mm
page 3