Digi Connect IT 4

Interfaces Wide Area Networks (WANs)
Digi Connect IT® 4 User Guide
135
5. For Zone, select External.
6. For Device, select the cellular modem.
7. For Match SIMby, select a SIM matching criteria to determine when this WWAN should be
used:
n If SIMslot is selected, for Match SIMslot, select which SIM slot must be in active for
this WWAN to be used.
n If Carrier is selected, for Match SIMcarrier, select which cellular carrier must be in
active for this WWAN to be used.
n If PLMN identifier is selected, for Match PLMN identifier, type the PLMN id that must
be in active for this WWAN to be used.
n If IMSI is selected, for Match IMSI, type the International Mobile Subscriber Identity
(IMSI) that must be in active for this WWAN to be used.
n If ICCID is selected, for Match ICCID, type the unique SIMcard ICCIDthat must be in
active for this WWAN to be used.
8. Type the PIN for the SIM. Leave blank if no PIN is required.
9. Type the Phone number for the SIM, for SMS connections.
Normally, this should be left blank. It is only necessary to complete this field if the SIM does not
have a phone number or if the phone number is incorrect.
10. Roaming is enabled by default. Click to disable.
11. For Carrier selection mode, select one of the following:
n Automatic: The cellular carrier is selected automatically by the device.
n Manual: The cellular carrier must be manually configured. If the configured network is
not available, no cellular connection will be established.
n Manual/Automatic: The carrier is manually configured. If the configured network is not
available, automatic carrier selection is used.
If Manual or Manual/Automatic is selected:
a. For Network PLMN ID, type the PLMN IDfor the cellular network.
b. For Network technology, select the technology that should be used. The default is All
technologies, which means that the best available technology will be used.
Note If Manual is configured for Carrier selection mode and a specific network
technology is selected for the Network technology, your modem must support the
selected technology or no cellular connection will be established. If you are using a cellular
connection to perform this procedure, you may lose your connection and the device will no
longer be accessible.
12. SIM failover is enabled by default, which means that the modem will automatically fail over
from the active SIM to the next available SIM when the active SIM fails to connect. If enabled:
a. For Connection attempts before SIMfailover, type the number of times that the device
should attempt to connect to the active SIM before failing over to the next available SIM.
b. For SIM failover alternative, configure how SIM failover will function if automatic SIM
switching is unavailable:
n None: The device will perform no alternative action if automatic SIM switching is
unavailable.