Hardware and Connectivity
Refer to the Hardware Components section for a detailed summary of the product's hardware.
SIM Card Slots
The router has two SIM card slots located beneath a metal cover. To communicate over a cellular network, insert an activated, data-provisioned SIM card into a SIM card slot. You can install two SIM cards simultaneously to use the SIM switching feature. You can configure each SIM card with a different APN (Access Point Name).
Tips
SIM card type: Mini SIM (2FF) — 25.0 × 15.0 × 0.76 mm.
Changing the SIM Card
- Always disconnect the router from the power supply before handling the SIM card.
- Release the two screws on the SIM card cover and swipe the cover to the side to remove it.
- To remove an inserted SIM card, use the flat end of a spudger or your fingernail. Press the card slightly into its slot until you hear a click. Release the card; it will pop out of its slot.
- To insert a SIM card, push the card into the slot until it clicks into place.
- Replace the cover and tighten the two screws.
If the SIM card requires a PIN, enter it in the router's web interface under Administration → Unlock SIM Card.
Antenna Connections
The antenna connectors available depend on the router model:
- ICR-2700 series models: Two SMA female connectors — ANT (main) and DIV (diversity) — for cellular antennas on the front panel. If the router is Wi-Fi equipped, an RP-SMA female connector (WIFI) for the Wi-Fi antenna is also located on the front panel.
- ICR-2800 series models: Two SMA female connectors — ANT (main) and DIV (diversity) — for cellular antennas on the front panel, and a combined RP-SMA/SMA female connector (WIFI/GNSS) on the front panel for the Wi-Fi or GNSS antenna.
Warning
Always operate the router with a cellular antenna securely connected to the cellular antenna connector. Transmitting without an antenna attached causes RF energy to be reflected at the open connector, which can permanently damage the radio circuitry. Ensure the antenna is properly installed before powering on or transmitting.
Tips
- The DIV cellular antenna is required for MIMO DL.
- The recommended tightening torque for the antenna SMA connectors is 0.9 Nm.
Ethernet Interfaces
The router provides ETH0 and ETH1 Ethernet interfaces, both accessible via RJ45 panel sockets. Both interfaces support 10/100BASE-T.
| Pin | Signal | Description |
|---|---|---|
| 1 | Tx+ | Transmit Data+ |
| 2 | Tx− | Transmit Data− |
| 3 | Rx+ | Receive Data+ |
| 4 | — | Not Connected |
| 5 | — | Not Connected |
| 6 | Rx− | Receive Data− |
| 7 | — | Not Connected |
| 8 | — | Not Connected |
Tips
The isolation barrier of the Ethernet ports from ground is 1500 V.
Power Supply
A two-pin terminal connector (pitch 3.5 mm) is used to power the router. The matching connector is included as a standard accessory.
| Pin | Signal | Description |
|---|---|---|
| 1 | PWR(+) | Positive pole of DC supply voltage (+9 to +48 V DC) |
| 2 | PWR(−) | Negative pole of DC supply voltage |
The required supply voltage is +9 to +48 V DC. The router has built-in protection against reversed polarity without signaling.
Warning
Use a power supply specified as a Limited Power Source (LPS) or a CEC/NEC Class 2 power supply.
All metal parts, including the chassis, are connected to the negative pole of the power supply (common pole). To protect the router, ground it using the grounding screw as shown below. The maximum tightening torque for the grounding screw is 1 Nm.
Low Power Mode
Warning
In applications requiring low power consumption, such as solar-powered installations not operating 24/7, use Low Power Mode (LPM) before shutting down the entire router.
LPM (Low Power Mode) is a sleep state with minimal power consumption. ICR-2800 series models wake from LPM when the BIN1 input receives a signal or after a predefined period. ICR-2700 series models wake from LPM after a predefined period only. To enter LPM, use the lpm command. Refer to the Command Line Interface application note for details.
I/O Port
Tips
This section applies to ICR-2800 series models only.
The I/O interface provides four digital inputs and two digital outputs on a 16-pin terminal block.
| Pin | Signal | Description |
|---|---|---|
| 14 | BIN0 | First digital input |
| 6 | BIN1 | Second digital input |
| 15 | BIN2 | Third digital input |
| 7 | BIN3 | Fourth digital input |
| 16 | BOUT0 | First digital output |
| 8 | BOUT1 | Second digital output |
| 5, 13 | GND | Ground (common negative pole) |
Tips
The I/O interface is not electrically isolated from the router.
Serial Interfaces
Tips
This section applies to ICR-2800 series models only.
Warning
Switch the serial interface only when the router is powered off.
Both serial interfaces connect to the 16-pin terminal block socket and can be independently switched between RS232 and RS485 using the DIP switch located on the left panel. Setting a DIP switch to the up position configures the corresponding interface as RS232; setting it to the down position configures it as RS485.
RS232 Mode:
| Pin | Signal | Description |
|---|---|---|
| 1 | RXD | Received Data (interface 1) |
| 2 | TXD | Transmit Data (interface 1) |
| 3 | RTS | Request to Send (interface 1) |
| 4 | CTS | Clear to Send (interface 1) |
| 5 | GND | Ground (interface 1) |
| 9 | RXD | Received Data (interface 2) |
| 10 | TXD | Transmit Data (interface 2) |
| 11 | RTS | Request to Send (interface 2) |
| 12 | CTS | Clear to Send (interface 2) |
| 13 | GND | Ground (interface 2) |
RS485 Mode:
| Pin | Signal | Description |
|---|---|---|
| 2 | D (+) | In/Out (interface 1) |
| 1 | D (−) | In/Out (interface 1) |
| 5 | GND | Ground (interface 1) |
| 10 | D (+) | In/Out (interface 2) |
| 9 | D (−) | In/Out (interface 2) |
| 13 | GND | Ground (interface 2) |
Tips
The serial interfaces are not electrically isolated from the router.
USB Port
The router has a single USB 2.0 host port with a USB Type-A socket.
| Pin | Signal | Description | Direction |
|---|---|---|---|
| 1 | +5 V | Positive pole of 5 V DC supply voltage, 0.5 A | — |
| 2 | USB Data− | USB data signal (negative pole) | Input/Output |
| 3 | USB Data+ | USB data signal (positive pole) | Input/Output |
| 4 | GND | Negative pole of DC supply voltage | — |
LED Indicators
Status LEDs are located on the front panel of the router. Each ETH connector also has two additional LEDs showing the port status.
| Caption | Color | State | Description |
|---|---|---|---|
| PWR | Green | On | The router is starting up. |
| Green | Blinking | The router is ready (heartbeat). | |
| Green | Fast blinking | The router firmware is being updated. | |
| USR | Green | — | The function of this LED is user-defined. |
| DAT | Green | Blinking | Cellular communication is in progress.¹ |
| SIG | Green | On | Good cellular signal. |
| Orange | Blinking | Fair cellular signal. | |
| Red | Fast blinking | Poor cellular signal. | |
| TECH | Green | On | The active SIM uses 4G technology. |
| Orange | Blinking | The active SIM uses 3G technology. | |
| Red | Fast blinking | The active SIM uses 2G technology. | |
| SIM1 | Green | On | SIM1 is active for the cellular connection. |
| Red | Fast blinking | A SIM1 issue (missing card or PIN not entered). | |
| SIM2 | Green | On | SIM2 is active for the cellular connection. |
| Red | Fast blinking | A SIM2 issue (missing card or PIN not entered). | |
| ETH0, ETH1 | Green | On | Selected 100 Mbps bit rate. |
| Green | Off | Selected 10 Mbps bit rate. | |
| Orange | On | Network cable connected. | |
| Orange | Brief off blinks | Data transmission. | |
| Orange | Off | Network cable not connected. |
Tips
¹ DAT LED color varies by model: On ICR-2700 series models, the DAT LED is Red. On ICR-2800 series models, the DAT LED is Green.
Reset Options
The RST button is located in a small opening on the router panel and has multiple functions. For details, refer to Initial Configuration → Reset.
Tips
Use a narrow screwdriver or a small tool to press the RST button.