SBC-C23
SBC-C23 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: S.B. - Reviewed by L.B. -Copyright © 2020 SECO S.p.A.
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3.3.14
On-board optional modems
The SC23 board can be equipped with one embedded modem module (optional). The module is a QUECTEL EG25-G LTE Cat.4 modem, supporting LTE FDD
B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B28, LTE-TDD B38/B39/B40/B41, WCDMA B1/B2/B4/B5/B6/B8/B19 and GSM B2/B3/B5/B8, for Global
Use.
When the modem module onboard is mounted, then there will be also three U/FL connectors (type HIROSE U.FL-R-SMT1(10) )for external antennas, more specifically
CN61, CN62 and CN74.
CN61 is the main antenna connector for LTE
CN74 is the antenna connector for Diversity receive feature.
CN62 is the antenna connector that must be used for GNSS feature. By default, the SBC-C23 board is configured to use passive antennas. It can be optionally
configured (factory configuration), however, for providing power supply for active antennas.
The modem can then be paired to the microSIM slot CN66 or to the eSIM onboard.
3.3.15
On-board WiFi + BT Modules
The SC23 board is equipped with one WiFi + BT LE embedded module. It is possible to choose between two different modules, listed below:
•
Ti WL1831MOD Single-Band module, WLAN 2.4GHz SISO + BT LE
•
Ti WL1837MOD Dual Band module, WLAN 2.4GHz SISO/MIMO/MRC + WLAN 5.0GHz + BT LE
Depending on the module mounted, on-board there will be also up to two PCB antennas or U/FL connectors (type HIROSE U.FL-R-SMT1(10) )for external antennas,
more specifically:
-
WL1831MOD module will mount only one PCB antenna or U.FL connector (CN4)
-
WL1837MOD module will mount two PCB antennas or U.FL connectors (CN4 primary antenna, CN27 secondary antenna)
