Critical Response Systems: M1401 Telemetry Modem

Devices

Integral to the SPARKGAP™ network are the devices used for alerting and interaction.

Technical Specs Format

Motorola ReFLEXTM v2.7.5 (NPCS Digital Narrowband)
800-9600 Baud
Multicast, Unicast, and Point-to-point Messaging
Precise GPS/UTC Time Synchronization

Transmitter

Frequency Range: 896~902MHz
Frequency Stability : 0 PPM (DSP-based AFC)
Emissions: FCC Part 90, 24D
Power: 1W Into Antenna, Typical

Physical

Size: 58mm × 47.8mm × 8.0mm
Weight: 35 grams
Operating Temp: -10°C - +60°C

Host Interface

Standard: Mobile Radio Interface (MRI)
Host Connector: Hirose DF12A-20DS-0.5V(80) 3.3V Logic Compatible
RF Connector: 50Ω SMA Plug
VCC: +4.2 VDC ± 5%
1.8 mA static
60 mA receive
1200 mA transmit

Receiver

Frequency Range : 929~942MHz
Image Rejection: 40dBc, Typical
1 MHz Blocking: 80dBc, Typical
Selectivity: 22dBc @ ±10KHz, Typical
Sensitvity: 90% CMR @ -122dBm

The M1401 is a small, lightweight, and low power consumption device that allows digital
communications services wherever there is a NPCS ReFLEXTM network. Unlike other products, the M1401 delivers full access to the ReFLEX v2.7.5 air protocol though CRS’s innovative Mobile Radio Interface (MRI). This enables you to differentiate your products with the latest ReFLEX 2.7.5 features and capabilities:

Features

Multicast, Unicast, and Point-to-point Messaging
Multicast Acknowledgement
Reduced and Normal Latency
Precise GPS/UTC synchronized time and date
Flexible Power Management
Superior Sensitivity and RF Performance

With superior performance, multicast support and network-synchronized time-of-day, the M1401 is a natural choice for many M2M wireless applications:

M2M Wireless Applications of the M1401

Remote Meter-Reading
Vending Machines
Alarm Monitoring
SCADA, Environmental Monitoring
AVL, Fleet Management
POS terminals
Handheld Devices