40To install a SIM module:1. Open the SIM module socket in the direction marked OPEN so the holder projects upwards.2. Insert the SIM module into the SIM module socket along the guide rails.3. Close the SIM module socket in the direction marked LOCK to lock the card in position.4. Execute the display cellular [ interface-number ] command after the router is started. When"SIM Status = OK" appears in the output information, the SIM module is identified.4G interface module• SIC-4G-LTE-MSIC-4G-LTE-MIntroductionThe SIC-4G-LTE-M module provides 4G WLAN access and supports the following features:• LTE• UMTS• HSPA+• TD-SCDMA• CDMA2000 1xRTT• CDMA2000 1x-Ev-Do• Quad-Band EDGE• GPRS• GSMInterface specificationsTable 56 Interface specificationsItem DescriptionConnector type• TNC—For accessing WLANs.• SMA—For accessing GPS.• Mini USB Type AB—For connecting to third-party WLAN debugging andtesting software such as CAIT of Qualcomm.Number of connectors• 2 TNCs• 1 SMA• 1 Mini USB Type ABInterface standard• TNC—Supports LTE, UMTS, HSPA+, CDMA 1x, EV-DO Rev A,Quad-Band EDGE, GPRS, and GSM• SMA—GPS• Mini USB Type AB—RS-232