Digi TransPort WR31 User Manual page 26

Hardware
4 SIM door: Encloses the SIM sockets. The SIM door must be removed to install the SIM cards For
installation details, refer to the Quick Start Guide that came with your device.
Note To remove the SIM door, hold the device on a flat surface and using a screwdriver, firmly pull
the cover straight up.
5 Cellular antenna connector: This SMA female connector connects the device's primary cellular
antenna.
6 SIM Sockets: SIM 1 and SIM 2 are for use with the Subscriber Identification Module(s) (SIMs).
Digi TransPort WR Routers User Guide
TransPort WR11 hardware
26