41
Interface specifications
Table 65 Interface specifications
Connector type
• TNC connector: For connecting to a wireless network antenna.
• SMA connector: For connecting to a GPS antenna.
• Mini USB Type AB connector: For connecting to third-party WLAN debugging
and testing software such as CAIT of Qualcomm.
Number of
connectors
• 2 × TNC connector.
• 1 × SMA connector.
• 1 × Mini USB Type AB connector.
Interface standard
• TNC connector: LTE, UMTS, HSPA+, CDMA 1x, EVDO Release 0 & A,
Quad-band EDGE, GPRS, and GSM.
• SMA connector: GNSS.
• Mini USB Type AB connector: Support for USB devices.
Cable type
• TNC connector: None.
• SMA connector: Flexible 174 sized cable.
• Mini USB Type AB connector: USB console cable.
Supported services
• LTE.
• EVDO Release 0 & A.
• UMTS.
• HSPA+.
• DC-HSPA+.
• Quad-band EDGE.
• GPRS.
• GSM.
• GNSS.
Interface LEDs
Figure 43 SIC-4G-LTE-A (JG743B) panel
Table 66 LED description
WWAN
• Steady green: A link is present.
• Flashing green fast: Data is being transmitted or received.
• Flashing green slowly: The module is searching for wireless networks.
• Off: No link is present.
RSSI
• Steady green: Strong signal strength. The RSSI is equal to or greater than
–69 dBm.
• Flashing green fast: Middle-level signal strength. The RSSI is equal to or
greater than –89 dBm and less than –69 dBm.
• Flashing green slowly: Low signal strength. The RSSI is equal to or greater
than –99 dBm and less than –89d Bm.
• Off: Weak or no signal strength. The RSSI is less than –99 dBm.