Mikrotik: D-Link DWM-222
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Contents
Overview
DWM-222 is 4G/LTE USB modem by D-Link. This article contain configuration details and test results. USB modem was tested connected to Mikrotik RB951G-2HnD with RouterOS version v6.40.1 (stable).
Modem capabilities
- Broadband Wireless Support:
- LTE/DC-HSPA+/HSPA/WCDMA
- GSM/GPRS/EDGE
- Radio Frequency Bands:
- LTE @ 2600/1800/800 MHz
- UMTS @ 2100/900 MHh
- Quadband GSM/GPRS/EDGE
- Data Rate:
- LTE: 3GPP Rel-9 FDD-LTE Cat.4
- Downlink: Up to 150 Mbps
- Uplink: Up to 50 Mbps
- DC-HSPA+
- Downlink: Up to 42 Mbps
- Uplink: Up to 5.76 Mbps
- LTE: 3GPP Rel-9 FDD-LTE Cat.4
Visual indication (Status LED)
- Red (blinking): No SIM Card / No Service (or searching for service) / General Error condition
- Purple (blinking): Connected to 2G (GPRS/EDGE) network
- Blue (blinking): Connected to 3G (UTMS/HSPA/HSPA+)network
- Green (blinking): Connected to 4G (LTE) network
Note: Apparently keep alive of modem is indicated by blinking of status LED. When this status LED turn solid then it was most of the time host disconnect or firmware error/crash. Color remain as "last used" and did not switch to red. You can get modem out of this state for example by power cycling power -> /system routerboard usb power-reset duration=10s