B&B Electronics, Inc.
SPECTRE Configuration Manual
28
710-10001-02 Rev. 3.0
www.bb-elec.com
www.bb-europe.com
Operator
PLNM code for the network operator
Network type
Automatic selection
– The router will automatically select the
network type
Depending upon the type of router, it is also possible to select a
specific method of
data transmission (GPRS, EDGE, UMTS …).
PIN
PIN code for the SIM card. (Only required if the SIM card has been locked
with a PIN to prevent unauthorized access)
MRU
(Maximum Receiving Unit)
– The maximum packet size that can be
received in a given environment. Default value is 1500 bytes. Other
settings may cause incorrect transmission of data.
MTU
(Maximum Transmission Unit)
– The maximum packet size that can be
transmitted in a given environment. Default value is 1500 bytes. Other
settings may cause incorrect transmission of data.
Table 14: GPRS connection configuration
If the
IP address
field is not filled in, the network operator will automatically assign an IP
address when the connection is established. If a static IP address is supplied by the operator,
the time required to connect to the network will be reduced.
If the
APN
field is not filled in, the router will automatically select the APN based on the
IMSI code of the SIM card. If the PLMN of the cellular carrier is not in the APN list, then default
APN is “internet“. Contact your mobile operator to determine if the APN information must be
entered.
Access to the SIM card may be blocked if the PIN code for a locked SIM is entered
incorrectly. Contact technical support if your SIM card becomes blocked.
If only one SIM card is installed in the router, the router switches between the APNs on the
SIM card. A router with two SIM cards switches between SIM cards.
The items marked with an ‘*’ should only be entered if they are required by the cellular
network operator. If the router is unable to establish a PPP connection, verify that the
network settings have been entered correctly. You may also try a different authentication
method or network type.
