RXM-900-HP-II Linx Technologies Inc, RXM-900-HP-II Datasheet - Page 12

• Manufacturer Part Number: RXM-900-HP-II
• Description: RECEIVER RF 900MHZ 8-CH PACK
• Manufacturer: Linx Technologies Inc

Specifications of RXM-900-HP-II

• Frequency: 902MHz ~ 928MHz
• Sensitivity: -95dBm
• Data Rate - Maximum: 50 kbps
• Modulation Or Protocol: FM, FSK
• Applications: Home / Industrial Automation, Remote Access, Security Alarms
• Current - Receiving: 18mA
• Data Interface: PCB, Through Hole
• Antenna Connector: Through Hole
• Voltage - Supply: 2.7 V ~ 16 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Memory Size: -
• Other names: RXM-900-HP2; RXM-900-HP2

Figure 17: Typical Application - RS-232 Interface
Figure 18: Typical Application - Remote-Control Receiver
PROXIMITY OPERATION
If modules are combined to form a transceiver they should be operated in half-
duplex, meaning that only the transmitter or receiver is active at any time. When
combined with certain high-gain antennas the HP-II transmitter can, in close
proximity, exceed -10dBm power into the receiver. Since the receiver does not
incorporate an AGC this can result in poor performance or complete shutdown
of the receiver. This effect occurs when both the transmitter and receiver have the
high-gain antennas connected and are in close proximity (1-5 feet) of each other.
RX1
RX1
Channel
Channel
Select
Select
DIP Switch
3-Position
DIP Switch
3 Position
S1
to User
Output
+
220 uF
390K
C5
1
2
3
4
5
6
7
8
9
D0
D1
D2
D3
VT
DIN
OSC1
OSC2
GND
4.7 uF
4.7 uF
C1
C2
HT694
+
+
U2
VCC
15
16
10
1
3
4
5
A7
A6
A5
A4
A3
A2
A1
A0
MAX 232
18
17
16
15
14
13
12
11
10
U2
6
+
4.7 uF
C3
Address Select
7
2
DIP Switch
8-Position
2
5
+
S2
DB-9F
J1
4.7 uF
C4