The CTM-ONE supports two 2FF style SIM cards. One You can install either one or two SIMS can be installedSIM cards.
For single SIM card installation, we recommend using it is recommended to use the UPPER slot of the dual-SIM holder. The UPPER slot, referred to as SIM1 slot, is the slot located furthest away from the printed circuit board. The UPPER slot is referred to as SIM1 slot. The LOWER slot is referred to as SIM2 slot.
In most cases, the device will ship come with a pre-configured, installed SIM(s). In this caseIf so, SIM card installation is not required.
Accessing the SIM card access is via the removal of slots requires removing the battery/back cover by removing . To do this, remove the 4 top cover #4-40 socket head cap screws using a 3/32” Allen key driver (supplied).
The SIM slots are located positioned next to the battery.
| Note |
|---|
Be |
...
cautious not to dislodge the battery during SIM removal |
...
or installation. |
Ensure When reinstalling the battery cover, ensure that the gasket is in place when the Battery cover is reinstalled and tighten . Tighten the screws in a xcriss-cross pattern until snug for to achieve an optimal weather-tight seal. Do not overtighten, over tighten; the recommended torque value : is 4-5 in-lbNote: for some applications/configurations .
| Info |
|---|
For certain applications or configurations, the internal battery may not be installed. |
