Comlink iModem LTE-M - Robust serial modem for demanding applications

LTE CAT-M, RS232, USB - Built-in intelligence

The iModem is a LTE Cat M-modem developed with reliability and simplicity in focus. The modem is very small and light weight, has both USB and RS232 ports and it's built in a robust aluminium casing. Unlike regular modems the iModem has built in intelligence to provide higher dependability as well as a verified, reliable installation.

Additional features

Customized software features can be implemented on the powerful embedded platform. Features can be remotely updated and added.

The following features are implemented by default:

• Advanced cell monitoring features with recovery capabilities to improve overall uptime and reduce maintenance costs.
• Query signal strength via text message to verify a reliable installation.
• Query enhanced cell information via text message, contains information on Cell ID, connection state, etc.
• Signal strength indicator LED.
• Hardware watchdog ensures reliable operation.

Future proof

LTE-M offers extended coverage in poor conditions and poor coverage areas, which is especially important for critical infrastructure applications, as devices frequently need to be installed in challenging reception environments. Considering that LTE-M is included in the 4G and 5G framework that will last until at least 2040, it is the obvious choice of technology.

Convenient ‘Over the Air’ remote update capabilities of both modem firmware and added software features gives possibility for maintenance and future upgrades.

Power failure alarm

The iModem LTE-M uses a SuperCap, allowing the modem to send an alarm as a text message to a predefined recipient when the power supply is lost. A different message can also be sent when the power supply is restored.

Technical

Power Supply

• Input voltage: 9-24 V AC or 9-28 V DC
• Power consumption, nom.: 30 mA at 24V DC
• Power consumption, max: 500 mA at 24V DC
• Temperature range in operation: -30 – +70°C

Connections

• Power supply by pluggable screw terminal Cable area, max: 1.5 mm²
• USB Mini-B (can be powered via USB)
• Serial D-Sub RS232
• Antenna connector SMA

Network

• LTE Cat M1/Cat NB2/EGPRS (BG95-M3)
• Global module, frequency bands: Cat M1: B1/2/3/4/5/8/12/13/18/19/20/25/26/27/28/66/85
• Maximum data rates of 588 kbps downlink and 1119 kbps uplink under LTE Cat M1
• Micro-SIM card reader

The Unit

• Dimensions L x W x H: 72 x 69 x 26mm
• Weight: 76g
• Robust aluminium casing
• Installed using screws or DIN clips (ordered separately)

Package Contains

• iModem LTE-M
• GSM/LTE Dipole antenna
• Plugable 2-pin screw terminal block
• Power Supply, 24 VDC / 600 mA